Jurnal Perikanan Unram

DODOL SICINI FORMULATION WITH EUCHEUMA COTTONII SEAWEED FORTIFICATION

A Virati Syamda — 2024-05-08

Dodol, which belongs to the category of semi-moist foods (foods with intermediate moisture), is immediately consumed due to its sugary, chewy appearance. Seaweed will acquire economic value subsequent to undergoing additional processing, such as the transformation into seaweed dodol. The objective of this study is to differentiate the nutritional and hedonic benefits of Sicini dodol in response to fortification with Eucheuma cottonii seaweed. GOWATE REGION-PERI. This research methodology employs three interventions and three repetitions in an experimental laboratory. Analysis of data employs the Anova test. The water contents of samples A (27.81%), B (35.86%), and C (36.86%) were displayed in the results. Ashes A (1.04%), B (1.40%), and C (1.64%) by weight. The protein concentrations are as follows: A (3.44%), B (3.48%), and C (3.58%). Samples A (7.27%), B (9.26%), and C (8.86%) contained fat, respectively. Carbohydrates A (56.60%), B (61.69%), and C (66.02%) are examples. Samples A (1.61%), B (3.73%), and C (6.32%) comprise crude fiber. The hedonic test outcomes indicate that samples A (7.50), B (6.80), and C (6.20) have an average appearance. As indicated by the average fragrance of samples A (7.27), B (6.70), and C (5.40). Based on the typical taste, samples A (7.50), B (7.10), and C (5.70) are evident. As shown by the average textures of samples A (7.00), B (6.40), and C (5.60). In conclusion, seaweed lunkhead Eucheuma cottonii affects chemical and hedonic quality.

Keywords: Dodol, Eucheuma cottonii seaweed, chemical tests, hedonic

STUDY OF CHEMICAL COMPOUNDS AND ANTIBACTERIAL ACTIVITY OF KEFA FOREST HONEY STORED AT DIFFERENT TIMES AGAINST THE BACTERIA AEROMONAS HYDROPILLA AND VIBRIO ALGINOLITYCUS

Yuliana Salosso — 2024-05-20

This research aims to determine the stability of the chemical compound content and antibacterial activity of kefa forest honey stored at different times, against the bacteria Aeromonas hydropilla and Vibrio alginolitycus which are pathogenic bacteria in fish farming. Tests for the chemical compound content of honey include testing for alkaloid compounds using the Culvenor-Fiztgerald method, saponins using the foam test, terpenes and steroids using the Lieberman-Burchard method, tannins using the addition of FeCl₃ while flavonoids using the addition of HCl and Mg powder reagents. The total sugar content was measured using a spectrophotometer, the water content was measured using the gravimetric method and the pH using a pH meter. The antibacterial activity of honey was tested using the disc method without dilution. The research results showed that kefa forest honey taken at different times showed the same active compound content or did not change. The longer it is stored, the sugar, water and pH content of forest honey from Kefa decreases, but the decrease is not too big. Forest honey from Kefa, both new and stored for 6 months and 1 year, still has antibacterial activity against the bacteria A. hydropilla and V. alginolitycus.

GROWTH PERFORMANCE AND ECONOMIC ANALYSIS OF SNAKEHEAD (CHANNA STRIATA) FISH FARMING SEMI INTENSIVE SYSTEM

Artin Indrayati Mujito — 2024-05-20

The high market demand for snakehead fish (Channa striata) makes aquaculture activities one of the solutions to declining production in nature and increasing production of snakehead fish. Various cultivation systems are used to increase productivity while still focusing on economic benefits. This study aims to determine growth performance, survival rate, and economic analysis of snakehead fish farming cultivated with a semi-intensive system. The research method consists of 2 stages, namely nursery and growthout phase. Artificial feed in the form of pellets is used during cultivation. The nursery phase uses seeds with a size ± 1 cm (0.4 g/fish), kept in a fiber tank with a density of 10 fish/liter for 30 days. Growthout phase using seeds of size 5 – 7 cm (18 g/fish) is maintained in an earthen pond with a density of 20 fish/m² for 150 days. The average daily growth and survival rate of snakehead fish at the nursery phase were 0.59 g/day and 87%, respectively, while at the growthout phase were 0.55 g/day and 90%. The feed conversion ratio at the growthout phase is 1.48. The percentage of feed costs in the growth out phase is the highest percentage of other costs, which is 48.8% of total operational costs. The profits obtained from snakehead nursery and growthout activities are Rp. 585,000 and Rp. 2,505,000, respectively. The results of this study show that semi-intensive snakehead fish farming shows good performance and is economically profitable so it can be developed as a solution to increase snakehead fish production.

ARTICLE REVIEW: PROTEIN AND LIPID REQUIREMENTS OF MUD CRAB (Scylla spp.)

Wastu Ayu Diamahesa — 2024-05-20

This article discusses the nutritional requirements, particularly protein and lipid, in mud crabs (Scylla spp.). Mud crabs are one of the seafood types with a continuously increasing global demand. This literature review aims to provide an overview of the protein and lipid requirements in three mud crab species, namely Scylla paramamosain, Scylla olivacea, and Scylla serrata, which are the focus of aquaculture research. The research method involves comprehensive and systematic literature searches using predefined keywords. The findings indicate that protein and lipid requirements can vary depending on the growth phase, water temperature, and other environmental conditions. During the early growth phases, such as the larval and juvenile stages, mud crabs require higher protein levels to support rapid growth and optimal organism development. However, as they reach adulthood, protein requirements tend to decrease alongside metabolic changes and reproductive activity. Several studies have identified protein and lipid requirements for various mud crab species. The results show that optimal protein and lipid levels may vary depending on the species and growth stage of mud crabs. Therefore, this information is crucial for the development of suitable artificial feeds to effectively support the growth and health of mud crabs. In conclusion, this research provides important insights into the nutritional requirements of mud crabs and can serve as a guide for farmers to formulate feeds tailored to the daily needs of the crabs. Thus, this article makes a valuable contribution to the development of sustainable and efficient mud crab aquaculture industries.

ANALYSIS OF STRATEGIES FOR DEVELOPING SEAWEED CULTIVATION IN LONTAR VILLAGE SERANG DISTRICT

Iwang Gumilar — 2024-05-20

The amount of seaweed production in Lontar Village is decreasing every year so it is necessary to carry out an analysis to increase the amount of seaweed production in Lontar Village. In this research, a SWOT analysis was carried out for the direction of developing the seaweed cultivation business. Based on the results of the IFAS and EFAS analysis of internal and external factors, there are 5 factors. The strengths of the seaweed cultivation business in Lontar Village include community interest in large seaweed cultivation businesses, easy labor to obtain from family and community, seaweed cultivation equipment is simple and easy, large seaweed cultivation areas are available and harvest and maintenance periods can be arranged. Weaknesses in seaweed cultivation include lack of knowledge and skills in cultivation, seaweed is susceptible to pest and disease attacks, unsupportive quality and quantity of seeds, no seaweed processing industry and poor air quality which affects the harvest. Opportunities in the seaweed cultivation business include export market potential, superior products from government programs, the seaweed processing industry, seaweed cultivation technology as well as improving facilities and infrastructure. Threats from seaweed cultivation include the threat of climate change, the absence of training from extension workers, fluctuating seaweed prices, the loss of generations of seaweed cultivators and assistance from the government that is not yet in line with the farmers' needs and is not evenly distributed. The strategy that is suitable to be implemented is the S-O (Progressive) Strategy consisting of optimizing the cultivation area and the amount of seaweed production (S4, S5, O1, O2), the use of technology in seaweed cultivation accompanied by training (S1, S3, O4, O5) and training. and HACCP certification for cultivators (S1, O1, O2).

GROWTH, PROTEIN EFFICIENCY RATIO AND PROTEIN RETENTION OF G6 TRANSGENIC MUTIARA CATFISH WITH MIXED FEEDING AT DIFFERENT RATIO OF COMMERCIAL FEED AND REBON SHRIMP FLOUR

Ibnu Dwi Buwono — 2024-06-11

This study aims to evaluate the growth of transgenic G6 mutiara catfish using a mixture of commercial feed and rebon shrimp meal with different ratios between treatments. This research was carried out in May-August 2023, in the Lab. Aquaculture Gd.4 Faculty of Fisheries and Marine Sciences, Padjadjaran University. This research used the experimental method Completely Randomized Design (CRD) with four treatments and three replications. Treatment in the form of a mixture of commercial feed and rebon shrimp meal with a ratio of 50:50 (A), a ratio of 65:35 (B) and a ratio of 80:20 (C) was given to G6 transgenic mutiara catfish and the control treatment (65:35 ratio) given to sangkuriang catfish (treatment B*). Maintenance was carried out for 56 days with feeding three times a day. The parameters observed included growth in absolute weight (Wg), feed conversion ratio (FCR), protein efficiency ratio (PER), and protein retention (RP) which were analyzed using Analysis of Varience with 95% confidence level if significantly different followed by Duncan's test using SigmaPlot 15.0 software. The research results showed that the addition of commercial feed and rebon shrimp flour with a ratio of (80:20) had an influence on growth performance as indicated by an increase in absolute weight gain (687,53 g), FCR (0,64), protein efficiency ratio (18,7) and protein retention (46,43%.) Water quality values during rearing were still within tolerable limits for the growth of G6 transgenic mutiara catfish.

EFFECT OF COMPARATIVE NUMBER OF MALES AND FEMALES ON LARVAE PERFORMANCES OF TAWES FISH (BARBONYMUS GONIONOTUS))MALES AND FEMALES ON LARVAE PERFORMANCES OF TAWES FISH (BARBONYMUS GONIONOTUS)

Parenrengi Parenrengi — 2024-06-18

One of the phases that determines the success of fish farming is the egg hatching phase. The production of good quality Tawes larvae can occur if the hatchability of eggs is high and quality of eggs produced is good. The hatchability of eggs is relatively low at only 22% and can only produce approximately 10,000 fry, this is an important problem in the spawning process of Tawes fish in Indonesia. As an effort to increase the hatching rate of Tawes fish eggs, this is by treating the ratio of male to female broodstock differently in each hatching container. This research aims to determine the effect of comparison of the number of male and female broodstock on Tawes fish seed production and to find out how many seeds are produced by the ratio of male and female Tawes fish broodstock. The research was carried out for one month using the experimental design method. The parameters observed were the degree of egg hatching and air quality measurements, then data obtained were analyzed using a Completely Randomized Design (CRD) using SPSS 24 for Windows software. The results of the research showed that the ratio of male to female broodstock had an effect on production of Tawes fish (Barbonymus gonionotus) larvae, where the highest larvae production was obtained at a male broodstock ratio of 2: 1 female.

PHENOTYPING OF NILEM (Osteochilus hasselti) MANGUT STRAIN CULTIVATED IN CENTRAL AND WEST JAVA

Taufik Budhi Pramono — 2024-06-18

Phenotypic characters are one of bases for conducting selective breeding. The phenotypic characters of Nilem Mangut strains cultivated in several region can provide basic information for the development of its cultivation. This study aims was to determine the comparison of the characteristics of the quantitative phenotype with the meristic morphometric and growth pattern of Nilem (Osteochilus hasseltii) Mangut strains cultivated in different regions. This research was conducted using active survey methods in the field and laboratory. 90 fish were taken randomly from 3 different locations, namely Banyumas, Purbalingga and Tasikmalaya, samples were taken 30 fish/location. The results showed that the morphometric diversity coefficient of Mangut Nilem ranged from 4.93-17.99% (Banyumas), 10.35-21.41% (Purbalingga) and 9.11-24.12% (Tasikmalaya) while the coefficient The meristic diversity of Mangut Nilem Fish ranged from 6.89-13.02% (Banyumas), 6.05-9.32% (Purbalingga) and 5.78-10.78% (Tasikmalaya). Morphometric and meristic characters of Mangut Nilem Fish from several locations have positive correlation (have unidirectional relationships between characters) and negative (have opposite relationships between characters). Based on the relationship between length and weight, the Mangut Nilem fish in Banyumas, Purbalingga and Tasikmalaya had a b value respectively, namely 6,0222, 5,42 and 3,39 showing a positive allometric growth pattern (weight gain is more dominant than length gain). The condition factor for Mangut Nilem fish has a value range of 1.32-1.34. Tasikmalaya has the best fish farming pattern.

PSYCHOCHEMICAL CHARACTERISTICS OF SNACK BAR MADE FROM MANGROVE FRUIT API-API FLOUR (Avicennia marina)

Muhammad Fairuz Zenadine — 2024-06-18

Consuming snack bar with high sugar content and low fiber cause degenerative disease. Mangrove fruit api-api Avicennia marina is consumed as traditional food by mangrove society regarding to bioactive compounds of its. Therefore, snack bar is added mangrove fruit flour api-api (Avicennia marina) to increase the nutrition and to produce functional food. The purpose of this study was to characterize physochemical of snack bar formulated with mangrove fruit flour api-api (Avicennia marina). This study was conducted into two steps such as determination the proportion dry material and wet material, formulation snack bars added mangrove fruit flour api-api (Avicennia marina). The proportion of dry and wet material were 55:45 and 65:35. The best proportion of treatment was 55:45. The concentration mangrove fruit flour api-api (Avicennia marina) was 0%, 5%, 10% and 15%. Additional mangrove fruit flour api-api (Avicennia marina) 5% was significantly different in snack bar formulation with physichocemical characteristic such as texture 191.34; lightness 45.066; redness 9.27; dan yellowness 43.99; carbohydrate content 54,052. Proximate analysis was moisture 24,05%, ash content 1.50%, protein content 9.37%, lipid content 9.05%, and carbohydrate content 54,20%. Organoleptic analysis was colour 3.564, aroma 3.564, flavor 3.592, and texture 3.456.

FEEDING STUDY OF TOFU WASTE FERMENTATION ALTERNATIVE IN THE BUSINESS CULTURE OF NILE TILAPIA FISH (Oreochromis niloticus) IN CILONGOK DISTRICT, BANYUMAS DISTRICT

Ganjar Wiryati ganjar — 2024-06-18

This research aims to examine alternative feed made from tofu dregs to reduce production costs, especially feed costs by 10-20% in tilapia rearing businesses. In Kalisari Village, Cilongok sub-district, there is tofu dregs waste that has not been utilized. The nutritional content of tofu apas is crude protein 27.55%, fat 4.93%, crude fiber 7.11%, BETN 44.50%,

Making fish food with tofu dregs can be done through a fermentation process with probiotics. This descriptive analysis method is used for qualitative data presented in the form of simple descriptions and tabulations such as tables, diagrams, graphs. The data collected is in the form of primary data and secondary data, primary data using the interview method, kuestionnaire using direct observation in the field while secondary data using literature study. The research was carried out in Cilongok District from 2 February to 2 May 2023. Based on the data analysis that has been carried out, it shows that providing alternative feed with a percentage of pellets and fermented tofu dregs (50%:50%) is 58.9% or worth Rp. 2,102,109,- (tarpaulin pool) and 59.8% or Rp. 2,181,909,- (ground pool). Then in ponds with cultivation treatment according to SNI and providing alternative feed with a percentage of pellets and fermented tofu dregs (75%:25%) of 50.2% or worth Rp. 1,475,109,- Use of fermented tofu dregs as alternative feed if converted on a scale A business with an average pool area of main actors/businesses in Cilongok District (190m2), can reduce production costs for feed production by IDR 866,805.- or 16.85%.

HEMATOLOGICAL STUDY OF TILAPIA FISH (Oreochromis niloticus) AT LAKE TOGA, BETENGON VILLAGE DONDO DISTRICT TOLITOLI

Aliyas Aliyas — 2024-06-18

Hematological examination can be used as a way to help diagnose diseases in fish effectively and quickly. Therefore, a study of the blood picture, in this case the profile of several hematological parameters in tilapia (Oreochromis niloticus), needs to be done by observing the picture of red blood cells (erythrocytes), and white blood cells (leukocytes). Fish blood sampling was carried out at Lake Toga, Betengon Village, Dondo District, Tolitoli Regency. Analysis of total erythrocyte and total leukocyte analysis was carried out at UPT Puskesmas Managaisaki Tolitoli. The results obtained in this study are observations of blood images including red blood cells (erythrocytes) and white blood cells (leukocytes) in Lake Toga, Betengon Village. As for the results of observations on the blood picture of tilapia (Oreochromis niloticus) it is known that the average total erythrocytes and leukocytes in Lake Toga, Betengon Village shows a normal range with a total of 2,170,000 cells/mm3 for red blood cells and 35,850 cells/mm3 for white blood cells. Based on these results, it can be concluded that the tilapia in Lake Toga, Betengon Village, shows a picture of healthy blood. Keywords: Oreochromis niloticus, erythrocytes, leukocytes

SEAWEED FARMS MANAGEMENT BY SEAWEED FARMERS AROUND LABUHAN SANGORO WATERS, SALEH BAY, SUMBAWA REGENCY

Baiq Hilda Astriana — 2024-06-18

West Nusa Tenggara (NTB) is one of the largest seaweed producers in Indonesia. Seaweed farming locations can be found in Lombok Island and Sumbawa Island waters. This activity has become one of the livelihoods, even the main livelihood for coastal communities. Apart from that, the NTB government is also encouraging the development of seaweed production through PIJAR (cattle, corn and seaweed) program. Saleh Bay, as one of the bays known as a megabiodiversity area, has long been used as an area for seaweed farming activities. However, recently, there have been problems related to seaweed diseases causing losses for farmers. To be precise, significant cases of this disease appeared in one of the waters in Saleh Bay, namely the waters of Labuhan Sangoro. Various predictions have emerged regarding the seaweed disease. However, it cannot be confirmed precisely. Therefore, a research regarding seaweed cultivation management by farmers in Labuhan Sangoro needs to be conducted. The method used in this research was interview using a questionnaire (primary data). Respondents were selected purposively. Those selected were seaweed farmers and the number of respondents was as many as farmers who were still actively cultivating seaweed. The data obtained was then analyzed descriptively and qualitatively. The result of this research shows that respondents have good knowledge in managing seaweed seaweed farming, and have a tendency to continue carrying out seaweed farming even though there are some obstacles they often face related to financial and natural factors. However, education is still needed regarding the potential causes of seaweed diseases and efforts to treat them.

GOLDFISH HATCHERY TECHNIQUES (Carassius auratus) AT THE KEPANJEN MALANG AQUACULTURE INSTALLATION

Windarti Windarti — 2024-06-18

Kepanjen Aquaculture Installation (IPB) is one of the fish growers located in Kepanjan, Malang district. This research focuses on the management of cook fish filling techniques with the aim of ensuring that the filling technique carried out by the community can be done well and get quality seed yields. This study took samples from the Plant for Cultivated Fisheries (IPB) that were carried out for 40 days using samples of 5 different types of cooked fish. This method of research uses an explorative descriptive approach, namely by describing a result in research, but the result of research is not used as a general conclusion. There are several measurement indicators performed in the filling technique: 80% Hatching rate (HR), Survival Rate (SR) 89,01%, Daily Growth Rate Calculation (SGR) with a value of 0.012133 grams/day, Fekundity of 785 grains, Absolute Weight and Absolute Length measurements, Food Supply Management and Water Quality Management. It is driven by the level of water quality, temperature as well as excellent pool management installation. As well as the pesticide and disease treatment techniques that are performed are very helpful at the time of the rejuvenation process.

DISTRIBUTION OF CHLOROPHYL-A AND SEA SURFACE TEMPERATURE AND ITS INFLUENCE ON THE CATCH OF YELLOWFIN TUNA (Thunnus albacares) ON SERAYA BESAR ISLAND, EAST NUSA TENGGARA

Rafis Trisandi Dimu — 2024-06-18

Determining fishing Ground (FG), fishermen on Seraya Besar Island still use traditional methods or only experience, so there is a need for a touch of technology and knowledge to predict fishing ground through the distribution of chlorophyll-a and the distribution of sea surface temperature (SST) so that fishing activities are more effective. and effective and efficient. Starting from this idea, the author wants to study the distribution of chlorophyll-A and sea surface temperature and their influence on the catch of yellowfin tuna (Thunnus Albacares) on Seraya Besar Island, East Nusa Tenggara. This research uses a descriptive method. Based on this research, the average distribution of chlorophyll-a from January to November 2023 in the fishing ground fishermen on Seraya Besar Island was 0.44 mg/m3. The average distribution of sea surface temperatures from January to November 2023 in the fishing ground for fishermen on Seraya Besar Island is 27.55 °C. Linear regression with the equation Y = 2618.120 + 1715.958 X1 - 99.329 X2 with an adjusted R2 value of 79%. The T test results show that the chlorophyll-a distribution variable has a significant partial effect. Meanwhile, the variable distribution of sea surface temperature has no significant partial effect on Yellowfin Tuna catches on Seraya Besar Island, East Nusa Tenggara. The results of the F test show that the variables of chlorophyll-a distribution and sea surface temperature have a significant simultaneous effect on the catch of Yellowfin Tuna on Seraya Besar Island, East Nusa Tenggara.

COMPARISON OF FISH DIVERSITY IN THE OPAK RIVER ECOSYSTEM AND THE INLET OUTLET AREA OF THE GAJAH MUNGKUR RESERVOIR

Aliffia Kusuma — 2024-06-18

Indonesia is a country with high biodiversity. One of these biodiversity riches is fish. Fish diversity in Indonesia can be influenced by different ecosystem conditions. This study aims to determine and compare the diversity of fish species in ecosystems with different conditions. This research was conducted in Kali Opak Yogyakarta and the inlet and outlet areas of Gajah Mungkur Reservoir Wonogiri. Sampling in this study was conducted from April to May 2023. The method used for this research is a survey, fishing and conducting interviews with anglers around the location then the data is analyzed descriptively, namely describing, describing, analyzing the research data obtained, and calculating the index (richness, diversity, and evenness) of each location. The results of this study are, in Kali Opak, Shannon_H value 1.419, Evenness_e^H/S value 1.033, and Margalef value 0.9568. At the WGM Inlet, the Shannon_H value is 1.905, the Evenness_e^H/S value is 0.9596, and the Margalef value is 1.484. Then at the WGM Outlet, the Shannon_H value is 1.292, the Evenness_e^H/S value is 0.9099, and the Margalef value is 0.8656. Differences in fish species were found between Kali Opak and the inlet and outlet areas of Gajah Mungkur Reservoir. Kali Opak has 4 types of fish species, Gajah Mungkur Reservoir inlet has 7 types of species, and Gajah Mungkur Reservoir outlet has 4 types of species. Some species were only found in one study site. Although the inlet has moderate diversity, all study sites have low species richness. The level of species evenness in the three areas is almost the same, indicating an average level of evenness.

EFFECT OF COMMERCIAL FEEDING FREQUENCY ON ABSOLUTE WEIGHT GROWTH OF VANAME SHRIMP (LITOPENAEUS VANNAMEI) AGE PL 8-21 AT CV. ZELDA SUMENEP SUMENEP DISTRICT

Fabian Rahmando Ahmed — 2024-06-18

One important factor in feeding management is the frequency of feeding, namely the number of times feed is given in one day. If this feeding frequency is used incorrectly, it can certainly affect the growth and survival of the shrimp. This study aims to determine the optimal commercial feeding frequency for the absolute weight growth vannamei shrimp (Litopennaeus vannamei) PL ages 8-21 at CV. Zelda Sumenep, Sumenep District. This study used an experimental method with a completely randomized design (CRD) with 4 treatments with 6 replications. The treatment in this study was the frequency of commercial feeding, treatment A; frequency of commercial feeding 2 times/day, treatment B ; frequency of commercial feeding 3 times/day, treatment C ; frequency of commercial feeding 4 times/day, and treatment D ; frequency of commercial feeding 5 times/day. The test animals used in this study were vannamei shrimp PL ages 8-21 with an average weight of 0,001 g/head. The stocking density was 1 head/liter and the experimental medium used fresh water with a volume of 15 liters/tub. The results showed that treatment D gave the highest results for the absolute weight growth of vannamei shrimp (Litopenaeus vannamei) PL 8-21 of 0,053 g. Water quality data obtained water temperatures ranged from 27,3 ^oC – 27,5 ^oC, acidity ranged from 7,7 – 7,72 and dissolved oxygen ranged from 6,17 – 6,21 ppm.

IDENTIFICATION OF FISHING POTENTIAL FOR LOBSTER IN ACEH JAYA SEA WATERS

Hafinuddin Hafinuddin — 2024-06-18

The waters of Aceh Jaya Regency are included in the 572 fisheries management area (WPP) which is located on the west coast of Sumatra which has the potential for lobster fisheries. However, there is limited information about the biological condition of the lobsters caught, the composition of their length and weight, and even limited data and information about potential fishing areas for lobster fishing in Aceh Jaya Regency, so this study aims to identify fishing areas where lobsters are often caught and identify the types of lobsters caught. caught lobsters. The research was carried out at PPI Rigaih in the East Season from April to May 2022. The research method was carried out by experimental fishing with data collection techniques consisting of interviews and observation. The results showed that the lobster catches obtained during the research were sand lobsters (panulirus homarus) by 50%, bamboo lobsters (panulirus longipes) by 45% and batik lobsters (panulirus longipes) by 5%. The fishing area has been identified at 04°37'45.99"- 04°39'03.53" north latitude and 095°31'27.37" - 095°32'37.70" east longitude, with the condition of the seabed substrate being sand and coral with a depth of 5-10 meters of water. The results of this study are very important in the development of lobster fisheries in Aceh Jaya in particular and Indonesia in general.

STRUCTURAL MODEL COMPARISON OF HISTIDINE DECARBOXYLASE (HDC) OF HISTAMINE-PRODUCING BACTERIA MORGANELLA MORGANII CONSTRUCTED BY ALPHAFOLD2 AND SWISSMODEL

Heru Pramono — 2024-06-18

MORPHOMETRICS AND SURVIVAL RATE OF FATTENING MAND CRAB (Scylla serrata) CRAB APARTMENT SYSTEM IN PAGARAWAN VILLAGE AND TAKARI BEACH, BANGKA ISLAND

Umroh Umroh — 2024-06-18

Cultivating fattening mud crabs (Scylla serrata) usually requires a large area of land, innovation is carried out by making crab apartments. The research was conducted in September – November 2023, crab fattening locations in Pagarawan Village and Takari Beach, Bangka Regency. Location of mud crab morphometric measurements at the Aquatic Resources Management Laboratory, Bangka Belitung University. Test protein content at the DKI Jakarta Regional Health Laboratory. This research aims to examine the morphometrics, protein content and survival of mud crabs in crab apartments in Pagarawan Village and Takari Beach. Experimental research methods and community involvement to measure morphometrics, protein content and crab survival. The results of the research show that the ratio between weight, width and length of mangrove crabs in Pagarawan is 1.6:1.4:1. This shows that mud crabs are fatter. When the crab weighs around 160 grams, it is likely that the carapace width is ±14 cm and the carapace length is ±10 cm, while the crabs in Takari are smaller and thinner. The protein content of mangrove crabs in Pagarawan has an average value of 17.5 gr/100gr and in Takari 15.1 gr/100gr. The survival rate (SR) of mangrove crabs in Pagarawan is 87%. This condition means that crabs are suitable for cultivation in crab apartment boxes with a water source from a recirculation system pond. It is assumed that water pollution due to ammonia will not have much of an impact. The survival rate for mud crabs in Takari shows a zero percentage. The narrow space, food waste, and circulating water with an ammonia content of up to 0.05 mg/l are thought to have contributed to the crab's death. Water quality in both crab rearing areas shows that temperature, pH, salinity, DO, ammonia, nitrate and phosphate are still within the normal range for rearing mud crabs.

STUDY OF PREFERENCE LEVEL OF IWAK SAMBAL (SALAWAK) BASED ON BY-PRODUCTS OF CATFISH FILLET (PANGASIUS SP)

Pola S. T. Panjaitan — 2024-05-08

Milkfish is a popular brackish water fishery commodity with increasing demand. Feed is
one of the factors determining the success its cultivation because affects growth and production
costs. The price of feed continues to increase, so it is expected that the use of alternative feeds with lower prices but still of high quality. Pterygoplichthys pardalis meal can be a substitute
for commercial fishmeal. The purpose of this study was to analyze the growth response of
milkfish using P. pardalis meal (TS) as the main protein source in addition to commercial
fishmeal (TK). Milkfish measuring ±7.0 cm and weighing ±4.35 g were reared for 60 days.
The percentage of TS as treatment, treatment A 25%, B 30%, C 35% and D commercial feed.
Other feed ingredients used were commercial fishmeal, cornmeal, fine bran, copra meal,
vitamins and minerals. The feed dose was 5%/body weight and the frequency of feeding was
3 times a day. Parameters observed were weight and length growth, survival and feed
conversion and water quality. Using a completely randomized design with 4 treatments and 3
replicates. Data were analyzed using ANOVA and Duncan's further test, water quality was
analyzed descriptively. Treatments affect growth and feed conversion but have no effect on
survival rate, water quality is well tolerated. There was a tendency that the more TS was used,
the higher the feed protein content and the better the growth and feed conversion responses.
The use of 35% TS is better and the response is the same as treatment D. TS can be alternative
protein source to replace TK in milkfish feed.

LEVEL OF USE OF LEMNA PERPUSILLA IN FEEDING ON SEED GROWTH CARP (CYPRINUS CARPIO)

Daniel Sinaga — 2024-06-18

Feed production costs are the largest costs incurred by fish farmers. Carp (Cyprinus carpio) is quite popular among the public because of the delicious taste of its meat and its fairly affordable price. Caring for goldfish fry requires a lot of money if the feed used is 100% factory-made feed. It is necessary to look for additional feed whose protein content can reduce the use of commercial feed. The artificial feed needed is feed that has a high nutrient content, is easy to find in nature, and is widely available in nature. One of the feed raw materials derived from aquatic plants that can be used as additional feed is Lemna perpusilla. This type of aquatic plant can be used and has potential as an alternative source of protein for goldfish, namely the Lemna perpusilla aquatic plant. This research was carried out from June to July 2023 at UPR Amphibi Batang Toru. Completely Randomized Design (CRD) method: 5 (five) treatments and 3 (three) replications with a dose of 0% Lemna perpusilla as a control, followed by administration of 10%, 20%, 30% and 40% Lemna perpusilla. The final results of the research can be concluded that the addition of Lemna perpusilla is the most optimal and efficient in feed at 40% showing a significant effect on the growth of goldfish.

DILUTION OF FERMENTATION LIQUID FROM BANANA WEEVIL MUSA PARADISIACA TO INCREASE THE GROWTH OF SEAWEED Kappaphycus alvarezii

Samsu Adi Rahman — 2024-06-18

Fermented liquid from banana weevils is a fermentation product involving banana weevils and microorganisms originating from the banana weevil itself. This fermented liquid contains nutrients and other compounds that have the potential to stimulate growth and control disease in seaweed. The aim of this research is to determine the effectiveness of administering banana weevil fermented liquid on the growth of Kappaphycus alvarezii seaweed. This research was carried out in the waters of Jayabakti Village, Pagimana District, Banggai Regency. This study used a completely randomized design with four treatments and three replications, namely A (control), B (1 L fermentation liquid/50 L seawater), C (1 L fermentation liquid/100 L seawater), and D (1 L fermentation liquid/150 L seawater). The test seaweed is immersed for one hour according to the dilution of each treatment. The parameters observed include absolute growth, daily specific growth, and water quality. The results showed that the dose of banana weevil fermentation liquid significantly affected the growth of seaweed. The highest average growth value was achieved in treatment B (1 L fermentation liquid/50 L seawater) with a daily growth rate of 3.07 ± 0.04% and absolute growth of 90.48 ± 1.51 g. This research shows that immersion in fermentation liquid in fermentation liquid for one hour can increase seaweed growth, with the best results at a dilution of 1 L of fermentation liquid/50 L of seawater.

POTENTIAL USE OF FENNEL (FOENICULUM VULGARE) AS FISH IMMUNOSTIMULANT: ARTICLE REVIEW

Rangga Idris Affandi — 2024-06-18

The development of aquaculture systems from traditional to intensive has the potential to increase environmental pollution and other problems such as the emergence of disease. One of the fish health management that can be applied to control disease attacks is by taking action to prevent fish disease by administering immunostimulants. Sources of natural immunostimulants can come from plants. Ingredients in natural plants can be immunostimulants for fish, one of which is the fennel (Foeniculum vulgare). Fennel is generally known as a raw material for making bitter herbal medicine which has many benefits for the human body because of its content. Therefore, the aim of this literature review research is to provide a clear picture of the potential of the fennel as an immunostimulant in fish. The method used is a systematic literature review with stages of taking data from the library, then continuing with reading, taking notes and processing research material from articles resulting from research on the potential of fennel as an immunostimulant in fish. The results showed that fennel contain various bioactive compounds with the largest content being flavonoids which can be used as immunostimulants in aquaculture. Fennel have great potential for further research development in an effort to make this material an immunostimulant in large-scale aquaculture.

SOCIAL PERPECTIVE AND TECHNICAL FISHING OF TREVALLIES (Caranx sp) JUVENILES IN AMBON BAY

Jacobus Wilson Mosse — 2024-06-18

Juvenile Trevallies (Caranx sp) fishing provides superior natural seeds for fish farmers using floating cages. Seeds from nature have a lower mortality rate than from hatcheries, but the activity of fishing and availability of natural seeds has not been a scientific concern. We tried to involve in the process of juveniles trevallies fishing in Ambon bay and interviewed fishers who caught the fish aiming to learn their fishing technique to catch juvenile trevallies, map the fishing ground of Caranx sp in Ambon Bay, and analyze the catches based on social and technical perspectives. Data collection was carried out from May to July 2022. Direct interviews were conducted to respondents from Galala Village, Ambon Municipality. The respondents were fishers who captured juvenile trevallies as seeds, so we could be able to participate in their fishing trips. Respondents were consisted of junior to senior fishers and varied in fishing experience. Since the floating cages were operated at Ambon Bay, the fishing on juvenile trevallies have been started around 2013. Seagrass beds in the inner part of Ambon Bay are the habitats for juvenile trevallies. The small size of juveniles is more abundant than the bigger fish, and the average catch during 5-years interval increased slowly. Based on the social and technical perspective, the practice of juvenile trevallies fishing is categorized as sustainable fishing due to the proportional harvesting to the population productivity. Maintaining trevally population in Ambon Bay, its biological perspctives should be continuedly studied.

GROWTH RATE OF BARRAMUNDI (LATES CALCARIFER) WITH FEED ADDED MANGOSTEEN PEEL (GARCINIA MANGOSTANA) FLOUR AS A GROWTH SUPPLEMENT

Tri Yusufi Mardiana — 2024-06-18

Mangosteen peel has the potential to be a growth supplement for barramundi, which has an ever-increasing consumption rate. The aim of this research is to provide literature on the use of mangosteen peel in influencing the growth of white snapper fish and to find the optimal dose that can be used to add to white snapper fish feed. Using a 15 L jar rearing medium with white snapper fish (± 6 cm) and a method using quantitative research RAL 4 treatments adding mangosteen peel to the white snapper fish feed with 3 repeaters. The doses determined in this study were: A (0g/kg feed); B (2g/kg feed); C (4g/kg feed); D (6g/kg feed). And the results obtained by the highest treatment which was able to provide the best growth was D (6g/kg feed) with an average growth of 7.35 with a daily rate reaching 2.52% with all treatments with no deaths and water quality that supported white sea bass with good, namely salinity 31 – 32 ppt, DO 7.3 – 7.9 mg/l, temperature 27 – 28 °C, and pH reaching 7.7 – 8.1.

ANALYSIS OF RAY TRACING (BELLHOP) PROPAGATION MODEL IN NORTH NATUNA SEA WATERS

Agustinus Agustinus — 2024-06-18

The waters of the North Natuna Sea are one of Indonesia's areas prone to conflict and traversed by foreign vessels due to their direct bordering with several neighboring countries, demanding effective maritime security assurances. To ensure this security, careful maritime control and monitoring are necessary, especially through the use of monitoring tools such as SONAR to detect foreign objects traversing or entering the waters of the North Natuna Sea. This research aims to analyze the characteristics of underwater acoustic wave propagation patterns, particularly in forming shadow zones, using the Bellhop method. Simulations of the Ray Tracing propagation model (Bellhop) were conducted using the AcTUP v2.2L Toolbox. Temperature and salinity data against depth obtained from Marine Copernicus over one year were used in this research, from January 1, 2023, to December 31, 2023, during both the west and east monsoon seasons. Sound propagation speed calculations were based on the Medwin empirical equation, with a focus on a source depth of 10 meters at frequencies of 100 Hz and 1000 Hz in the North Natuna Sea. The simulation results indicate that during the west monsoon season, underwater acoustic wave propagation patterns reach further distances and decline towards the seabed compared to the east monsoon season. The shadow zone is therefore wider during the east monsoon season. Additionally, the transmission loss values at 100 Hz are almost the same in each season, whereas at 1000 Hz, the transmission loss is higher during the west monsoon season, ranging from 40 dB to 75 dB, compared to the east monsoon season, which ranges from 40 dB to 65 dB.

CHEMICAL, PHYSICAL, AND BIOLOGICAL TESTS OF SELF-MADE FISH FEED UTILIZING LOCAL RAW MATERIALS AT THE FRESHWATER AQUACULTURE DEPARTMENT CENTER (BPBAT) TATELU NORTH MINAHASA

Siti Aisyah Saridu — 2024-06-18

Feed is one of the components in fish farming activities that will affect the growth and survival of fish. The cost allocation required for feed procurement reaches 60-70% of the total production cost, so alternatives are needed to provide cheaper feed, one of which namely self-made feed using local raw materials. The purpose of this study was to test the physical (buoyancy, durability, homogeneity level, hardness level), chemical (protein, carbohydrates, fats, water, and ash), and biological (absolute weight gain, FCR, EPP) qualities. The data obtained were analyzed using quantitative descriptive analysis methods. The results of the physical test of the feed showed that the test feed had a buoyancy of 6.23 cm/sec, durability of 1441 seconds, homogeneity level of 79.32%, and hardness level of 86.51%. Chemically, the feed contained 25.85% protein, 5.81% water, 9.90% ash, 4.84% fat, and 30% carbohydrates. After being tested on tilapia fingerlings, the self-made feed produced absolute weight and length growth, FCR, EPP, and SR of 11.56 g, 4.47 cm, 1.84, 54.17%, and 90%, respectively. These results indicated the potential use of self-made feed using local raw materials to reduce dependence on commercial feed.

ANALYSIS OF FISHERY PRODUCTION FACTORS IN KUPANG CITY (CASE STUDY: FRESHWATER FISH CULTIVATION IN KOTA RAJA AND ALAK DISTRICTS)

Rayzcha Monicha Immerghanzhia Hotty — 2024-06-18

The study focuses on the analysis of the production factors that influence the sustainability of fish farming in the Raja District and Kupang District. This research aims to provide knowledge about the efficiency of fishing production and sustainability status. The research methods used are descriptive and analytical, involving the study of literature, observation, and statistical testing to analyse the relationship between the factors of production and sustainability of fish Lele (Clarias sp) and Nila (Oreochromis Niloticus). The analytical methods used include the Cobb-Douglas Function using SPSS version 25. The analysis involved testing classical assumptions to determine data distribution, testing regression models to understand the influence of production factors on fish production, and then analysing the sustainability of freshwater fish farming, looking at economic, social, and environmental aspects. The findings show that the regression model used shows a high degree of confidence in explaining the relationship between and the influence of independent variables (X1,X2,X3,X4,X5) on the dependent variable (Y). Based on research conducted on the sustainability of freshwater fish farming in Raja City and Kupang Alak City districts, it can be concluded that production factor analysis provide useful insights for stakeholders, policymakers, and researchers. These studies have shown that the efficiency of production factors can have a significant impact on various aspects of sustainability, including the social and environmental dimensions.

IDENTIFICATION OF PARASITES INFECTING TILAPIA (Oreochromis niloticus) IN CULTURE PONDS IN KUANHEUM VILLAGE

Immaria Fransira — 2024-06-18

Parasites are one of the main problems faced by fish farmers in Kupang district. The study aimed to identify parasites infecting tilapia (O. niloticus) in culture ponds in Kuanheum Village, Kupang Regency, East Nusa Tenggara. Tilapia (O. niloticus) were taken randomly and parasite identification observations were made at the Kupang Fish Quarantine, Quality Control and Fishery Product Safety Station Laboratory. The results were analyzed descriptively. The results of parasite identification showed that two types of parasites were found in tilapia (O. niloticus) in Kuanheum Village, namely Trichodina sp. and Cichlidogyrus sp.

THE EFFECT OF Rhizophora mucronata LEAF EXTRACT ON HAEMATOLOGY OF TILAPIA (Oreochromis niloticus) AGAINST Aeromonas hydrophila

Ashari Fahrurrozi — 2024-06-18

Ikan nila (Oreochromis niloticus) merupakan salah satu komoditas perikanan yang banyak dibudidayakan. Salah satu ancaman pada budidaya ikan nila adalah serangan penyakit, khususnya penyakit akibat bakteri Aeromonas hydrophila. Oleh karena itu, perlu untuk pengendalian penyakit ini salah satunya dengan imunostimulan baru yang ramah lingkungan. Dalam konteks imunostimulan, mangrove Rhizophora mucronata adalah tumbuhan yang dilaporkan memiliki kandungan metabolit sekunder yang bermanfaat untuk peningkatan kekebalan. Metode dalam penelitian ini merupakan eksperimental dengan rancangan acak lengkap 5 perlakuan dan 3 ulangan. Hasil penelitian menunjukan peningkatan secara signifikan total eritrosit, hemoglobin dan hematokrit pada perlakuan B, C dan D. Sedangkan pada perlakuan A terjadi peningkatan yang tidak siginifikan dan perlakuan E terjadi penurunan yang signifikan. Nilai rata-rata total eritrosit, hemoglobin dan eritrosit pada pada semua perlakuan hari ke-7 dan ke-14 kecuali perlakuan E berada dalam kisaran normal. Kesimpulan dalam penelitian ini menunjukkan >96% peningkatan dan nilai rata-rata dari total eritrosit, hemoglobin dan hematokrit dipengaruhi oleh pemberian ekstrak daun R. mucronata terhadap ikan nila (O. niloticus) yang diuji tantang bakteri A. hydrophila dengan dosis optimal sebesar 27±0,2 mg.kg^-1.

STUDY OF STORAGE BOILED MACKEREL TUNA FISH THROUGH IMMERSION IN COCONUT SHELL LIQUID SMOKE

Moegiratul Amaro — 2024-06-18

This study aimed to determine the effect of storage boiled mackerel tuna fish through immersion in coconut shell liquid smoke. The method in this research was an experimental method by experimenting in Laboratory. The research design used in this study was a completely randomized design (CRD) with a single factor (storage time: 0 hour, 24 hours, 48 hours, 72 hours, 96 hours and 120 hours) which repeated 3 times to obtain 18 units by smearing on 2% coconut shell liquid smoke for 10 minutes. The observed parameters in this study were pH, water content, total microbes, and scoring and hedonic organoleptic (appearance, aroma, texture and taste) of boiled tuna. The data from the observation were analyzed using Analysis of Variance with real level 5% using Co-stat. if there was a significant difference, the further test was continued using Honestly Significant Difference (HSD) with real level 5%. The results showed that the long storage treatment by immersing coconut shell liquid smoke was able to maintain the quality of boiled tuna for up to 48 hours based on a pH of 5,92; water content 59,17%; microbes total 4,85 log CFU/gr; as well as organoleptic that acceptable by the panelist.

QUALITY OF TILAPIA NUGGETS FORTIFIED WITH MORINGA LEAF FLOUR

Dwi Sagita — 2024-06-18

Nugget is a restructured meat from ground and molded meat. Generally nuggets are made from chicken. To enrich the nutritional content, the ingredients for making nuggets were diversified using tilapia fish meat and moringa leaf flour. This research aims to determine the effect of fortification of Moringa leaf flour on the quality of tilapia fish nuggets. This research used a Completely Randomized Design (CRD). The treatment consisted of fortification of Moringa leaf flour (TK), namely TK1 (0%), TK2 (5%), TK3 (10%), TK4 (15%), TK5 (20%) and TK6 (25%). Analysis of the observation data was carried out using Anova and BNJ further tests. The nugget quality parameters in this study were chemical and organoleptic parameters. Moringa leaf flour fortification had a significant difference on all nugget quality parameters except color. Moringa leaf flour could improve the quality of tilapia fish nuggets by increasing the protein content by 0.5-13.18% and producing tilapia fish nuggets which have a vitamin A (ß-carotene) content of 1.82-20.76 %. Fortification of foringa leaf flour with a concentration of 10% was the best treatment to produce tilapia fish.

THE HANDLING AND STORAGE OF FISH CATCH ON PURSE SEINE VESSELS BASED AT OCEANIC FISHING PORT, KENDARI

Iya Purnama Sari — 2024-06-18

The handling of fish catches in fishing activities is a very important initial handling and determines the quality of further fish. The handling fish on board while adhering to the guidelines for appropriate handling is very important and absolutely applied during and before fishing. This information indicates the importance of carrying out this research which aims to provide an overview of the techniques of handling and storing fish catches by paying attention to the principles of appropriate handling on board. This study was carried out from November 2023 - January 2024. The research used an incidental method, by selecting a fishing vessel with purse seine gear, namely KMN. Nurhikmah 02. Data collection used a purposive sampling method, the parameters studied included the feasibility of facilities and infrastructure for handling and storing fish catches on board. Next, the application of the process of handling and storing fish catches on board in accordance with the principles of handling. The data obtained are primary data from direct observation on the ship and secondary data through the interview process on the ship. The outcomes demonstrated that the types of fish caught on the ship included small and large pelagic fish groups with a total weight of fish catches reaching 13.65 tons of fish. The facilities and infrastructure used in handling are generally in decent condition, although rusty tools are still found. The application of the process of handling and storing fish catches on board has applied the principle of "3C & 1Q", as well as storage techniques with the bulking method as an application of the cold chain system in handling fish on board.

SOAKING FERMENTATION OF RICE WASHING WATER AND SALT ON THE SHELF LIFE OF RED TILAPIA FILETS AT LOW TEMPERATURE STORAGE BASED ON THE NUMBER OF MICROBES

Shilfana Fitriana — 2024-06-18

Ikan nila merah banyak digemari oleh masyarakat Indonesia, dikarenakan rasa dagingnya gurih dan tebal mirip daging ikan kakap merah. Salah satu produk ikan nila adalah filet nila dengan kulit, memiliki keunggulan yaitu mengandung nilai gizi yang tinggi terutama kandungan protein dan lemak, namun memiliki kekurangan yaitu cepat mengalami penurunan mutu. Strategi untuk mengurangi jumlah bakteri bisa melalui penambahan senyawa pengawet alami. Fermentasi air cucian beras yang ditambah dengan konsentrasi garam menghasilkan senyawa asam laktat yang anti bakteri sehingga dapat memperlambat pertumbuhan bakteri. Penelitian ini bertujuan untuk menentukan konsentrasi garam pada fermentasi air cucian beras yang paling baik terhadap masa simpan filet nila merah berdasarkan jumlah mikroba pada penyimpanan suhu rendah (5-10. Metode penelitian yang digunakan adalah eksperimental dengan empat perlakuan masing- masing secara duplo, yaitu melakukan perendaman selama 30 menit terhadap filet nila dengan penambahan fermentasi air cucian beras pada setiap konsentrasi (0%, 2%, 3%, 4%). Hasil penelitian menunjukan bahwa rata-rata nilai pH filet nila merah tanpa perlakuan selama penyimpanan cenderung lebih tinggi jika dibandingkan dengan filet nila merah yang diberi perlakuan. Hal ini dikarenakan tidak adanya senyawa yang mengontrol fermentasi air cucian beras. Filet nila merah tanpa perlakuan hanya memiliki masa simpan selama 6 hari, sedangkan filet nila merah dengan perlakuan memberikan masa simpan lebih lama sekitar 7-8 hari. Berdasarkan hasil penelitian dapat disimpulkan bahwa penambahan konsentrasi garam 3% pada fermentasi air cucian beras merupakan konsentrasi yang paling baik, dan dapat memperpanjang masa simpan filet nila merah sampai hari ke-8 berdasarkan jumlah mikroba pada penyimpanan suhu rendah (5-10.

DEGREE OF INFECTION AND PREVALENCE OF ECTOPARASITES IN CARP (Cyprinus carpio) IN BATANG DISTRICT

Linayati Linayati — 2024-06-18

Disease attack is one of the obstacles in aquaculture that can cause a decrease in productivity. Fish diseases can be caused by parasites both endoparasites and ectoparasites. The purpose of this study was to determine the type, prevalence, and intensity of ectoparasites in carp cultivated in ponds at the Fish Seed Center in Batang Regency, Central Java. The method used in the study was the survey method. The samples taken were 30 fish. Data were analyzed descriptively quantitatively. The results showed that the type of parasite found in carp was Argulus sp. with an infection rate of 10.7 individuals/head and a prevalence of 67%. The degree of infection is categorized as moderate and the prevalence is categorized as very frequent infection.

EFFECT OF ADDING RED GINGER FLOUR (Zingiber officinale var. Rubrum) IN FEED ON THE GROWTH OF VANNAMEI SHRIMP (Litopenaeus vannamei)

Benny Diah Madusari — 2024-06-18

THE EFFECT OF ADDITION MELINJO FRUIT PEEL FLOUR ON FEED TO ENHANCE THE COLOR QUALITY OF GUPPY FISH (Poecilia reticulata)

Dinda Prasetya Oktaviani Dinda — 2024-06-18

Carotenoids that are added to feed can improve the color quality of fish because they cannot synthesize the color in their bodies. This research aimed to determine the effect of adding Melinjo Fruit Peel Flour on feed to enhance the color quality of Guppies. The experiment used a completely randomized design with five treatments (Melinjo Fruit Peel Flour 0%, 2,5%, 5%, 7,5%, and 10%) and three replications. Data were analyzed using analysis of variance (ANOVA) and significantly different between treatments were analyzed using Duncan's test. The results showed that the addition of 10% Melinjo Fruit Peel Flour on feed had a significant effect to enhance the color quality of Guppies 2,26% in orange and 3,05% in blue. The results showed that the addition of 10% Melinjo Fruit Peel Flour on feed gives the best growth with a weight of 0,32 g/head, length of 0,60 cm/head, and survival rate of 95,8%.

THE EFFECT OF PERIODIC FASTING ON THE GROWTH PERFORMANCE OF SALINE TILAPIA Oreochromis niloticus

Awan Sustiawan — 2024-06-18

Saline tilapia (Oreochromis niloticus) is Indonesia's leading cultivation commodity and has important economic value. The general problem in increasing O. niloticus production is the high cost of feed. Feed starvation is an alternative to increase feed utilization efficiency and growth performance. The aim of this research was to determine the effect of periodic feed starvation on the growth of saline tilapia. The research was designed in a completely randomized design, four treatments with three replications with different levels of food fasting, namely treatment A: Daily feeding without periodic fasting, Treatment B: 1 day fasting, 3 days fasting periodically, treatment C: 1 day fasting. 5 days fed periodically, treatment D: 1 day fasted 7 days fed periodically. A total of 120 saline tilapia fry were reared for 35 days, given a feed dose of 3% of body weight. The results of the research showed that saline tilapia seeds treated with 1 day fasting for 7 days and fed periodically produced the highest feed efficiency (0.58%), feed conversion ratio (2) and daily growth rate (0.14%) compared to other treatments.

ENVIRONMENTAL ENGINEERING THROUGH DOMESTICATION OF SALINITY ON THE GROWTH AND SURVIVAL OF CLOWN FISH (Amphiprion melanopus)

Amelya Mustamu — 2024-06-18

Clown fish (Amphiprion melanopus) is one of the ornamental fish that is in great demand because of its shape, color, uniqueness and active movements. Salinity is an important indicator that can influence the growth and survival of clownfish during the rearing period. This research aims to determine the effect of environmental engineering through salinity domestication on the growth and survival of clownfish. The method used in this research was a completely randomized design (CRD) method with 4 treatments repeated 3 times. The treatments used were 4 different salinities. Treatment A = 30 ppt (control), Treatment B = 25 ppt, Treatment C = 20 ppt, Treatment D = 15 ppt. The results of calculating the average growth in weight and length of clownfish obtained the best results in treatment A, while the average growth in length and weight was the lowest in treatment D. The survival rate during the study showed that in treatment A it was 83%, treatment B and C by 75% and treatment D by 67%. Based on the results of this research, it shows that environmental engineering through salinity domestication has a real influence on the growth in length and weight of clownfish, while survival rate does not have a real influence. This shows that clownfish can still adapt and can survive up to a salinity of 20 ppt with a survival rate of 75%.

EFFECT OF ADDING BIOACTIVE COMPOUNDS FROM BROWN ALGAE (Sargassum sp.) IN FEED ON GROWTH PERFORMANCE OF SIAMESE CATFISH (Pangasius hypopthalmus) SEEDS

Adinda Nurkholifah — 2024-06-18

Penelitian ini bertujuan untuk mengetahui pengaruh dan menentukan dosis penambahan Sargassum sp. ekstrak. pakan yang optimal untuk kinerja pertumbuhan benih Ikan Siam Patin ( Panganius hypopthalmus ). Hasil analisis ANOVA, penambahan senyawa bioaktif dari Sargassum sp. berpengaruh sangat nyata terhadap kinerja pertumbuhan ikan (Fhit>Ftab). Penambahan Sargassum sp. ekstrak dalam pakan dengan dosis 20 g/kg berpengaruh terhadap peningkatan performa pertumbuhan benih Ikan Siam Patin ( Panganius hypopthalmus ) yang lebih optimal dibandingkan perlakuan lainnya (0 g/kg, 10 g/kg, 15 g/kg ), yang ditunjukkan dengan peningkatan nilai persentase pertumbuhan panjang mutlak (6,7 cm), berat mutlak (114,33 g), SGR (2,85%), FCR (1,05%), EPP (95%), IHS (0,51 %), dan SR (100%) . Nilai kualitas air pada saat pemeliharaan ikan berada pada kisaran optimum meliputi suhu (26-28°C), pH (6,2-7,6), dan DO (5,3-7 mg/L).

CORAL REEFS HEALTH IN BATANGLAMPE ISLAND WATERS SINJAI REGENCY

Irfani Tahira — 2024-06-18

Coral reefs are currently experiencing quite high pressure. Damage occurs everywhere causing ecological and economic functions to be disrupted. The impact of the damage will affect the level of health and threaten the sustainability of coral reef resources and their ecosystem. This research aims to determine the health level of coral reefs using indicators of live coral cover, algae cover, sand cover, mortality index and recovery potential. The method used is transect photos using CPCe (Coral Point Count with excel extension) software. The variables used in calculating the coral reef health index value use benthic component data. The health level of coral reefs is known by looking at live coral cover, algae cover, sand cover and the mortality index combined with the level of resilience. The results showed that the average live coral cover was 19.19% (poor). Average algae cover 29.60% (good), average sand cover 39.74% (good) and average mortality index 0.63% (high). The potential for restoration of the coral reef ecosystem on Batanglampe Island is included in the medium category. Community participation together with the Government is needed in maintaining and preserving the sustainability of the coral reef ecosystem in Sinjai Regency.

DIVERSITY OF GASTROPODS IN MANGROVE ECOSYSTEM OF POTON BAKO HAMLET, JEROWARU DISTRICT, EAST LOMBOK REGENCY, NTB

Wira Nata Kusumah Ahmad — 2024-06-19

This study aims to determine the composition of Gastropoda species and the index of diversity, seregation and dominance in mangrove ecosystems in Poton Bako Hamlet. Sampling was carried out at 2 different stations using line and square transects and included Gastropod collection as well as supporting parameter data such as temperature, salinity, pH and substrate carried out directly. Based on the composition of the abundance of Gastropod species obtained 13 Families, 21 Genuses, 32 species. Producing a total number of biota obtained 606 individuals spread across Station 1 as many as 289 ind and Station 2 as much as 319 ind. The type of Terebralia sulcata is most commonly found at each station. The results of this study describe the ecological conditions at Station 1 with a diversity index (H = 2.23) classified as medium, a uniformity index (E = 0.72) classified as high and a dominance index (D = 0.15) classified as low. While the ecological condition at Station 2 with a diversity index (H'=1.44) is moderate, the uniformity index (E= 3.94) is high and the dominance index (D= 0.46) is high.

OPERATION TECHNIQUE AND OPERATIONAL TIME CALCULATION OF PURSE SEINE IN FISH CAPTURE: A CASE STUDY ON KM. MUTIARA SEJATI

Liya Tri Khikmawati — 2024-06-26

A purse seine is an active fishing gear operated by encircling schools of fish. KM. Mutiara Sejati is one of the fishing vessels based in PPP Bajomulyo, Central Java, employing purse seine for small pelagic fisheries. That research aimed to explore the operational techniques of purse seine fishing gear and determine the time calculation for its operation. The study was conducted over five months, from October 2022 to March 2023, utilizing observation, interviews, and documentation as research methods. The operational area of the vessel was in the WPP 712 (Java Sea) with PPP Bajomulyo serving as the fishing base. Based on the research findings, the operational process of small pelagic purse seine began with a series of steps, including the deployment of fish aggregating devices, activation of vessel lights, deactivation of lights except for those at the stern, lowering of the boom lights, total shutdown of vessel lights, setting of the net, purse line retrieval, retrieval of the boom lights, net hauling process, catch retrieval, and ultimately, the re-arrangement of fishing gear. Calculation results indicated that the average operational time for the fishing gear during the nighttime was 87 minutes, while during the early morning hours, it was 83 minutes.

IDENTIFICATION OF FORMALIN CONTENT IN ANCHOVY SALTED FISH SOLD IN SEVERAL TRADITIONAL MARKETS IN BANDUNG CITY

Junianto Junianto — 2024-06-26

Formalin is one of the preservatives that are dangerous when added to food. However, its use is still widely carried out by irresponsible producers, one of which is in anchovies. This study aims to analyze the presence or absence of formalin content in anchovy salted fish sold in several traditional markets in Bandung. The formalin test method was carried out qualitatively and quantitatively using a nash reagent and a spectrophotometer UV-Vis. The results of research on anchovy salted fish samples from Gedebage Market, Caringin Market, Simpang Dago Market, and Kosambi Market found the presence of formalin in all samples with the highest content in anchovy samples obtained from Gedebage Market, which was 7,14 mg/l.

FISH APARTMENT AS AN EFFORT TO INCREASE PRODUCTIVITY AND CONSERVATION OF FISH RESOURCES (LITERATURE REVIEW)

Yuli Andriani — 2024-06-26

The decline in global marine fisheries production has sparked concerns about depletion of fish resources. The innovation developed is the use of fish apartments to increase productivity and conserve fish resources. Fish apartment is useful as fishing media, replacement habitat for damaged coral reefs, nursery ground and feeding ground for fish habitat ecology. Fish apartment can also be an indicator of changes in trophic levels in the food chain in aquatic ecosystems. This research explores the benefits of fish apartment for increasing productivity and conserving fish resources. Descriptive and exploratory research methods were carried out by combining literature and published research results. The benefits of fish apartment as an effort to increase the productivity of fish resources can be seen from the existence of waters that have the potential to become fishing areas which contribute to increasing fish stocks so that catches increase by 80% per year from 2013-2015. The fish apartment can restore damaged aquatic ecosystems because it increases the abundance of 39 types of fish species and improves the fish habitat for the 20 families of coral fish that occupy the fish apartment.

ENSO (EL NIÑO-SOUTHERN OSCILLATION) INFLUENCE ON WIND AND WAVE VARIABILITY IN MALUKU WATERS

Johannis Steven Helmus Kakiailatu — 2024-06-26

Maluku waters are among the waters in Indonesia that have a strategic location. Maluku waters encompass several seas with different characteristics, including the Banda Sea, Seram Sea, and Arafura Sea. One phenomenon that affects atmospheric conditions and Maluku waters is ENSO. The influence of ENSO on wind and wave variability in Maluku waters is the purpose of this study. This study uses ONI Index data, as well as wind and wave data from BMKG-OFS products that have a spatial resolution of 7 km and a temporal resolution of 3 hours. The ENSO neutral period occurred throughout 2013, El Nino in 2015, and La Nina in 2022. The results showed that ENSO affects wind and wave intensity. In January, the winds range between from 2 to 20 knots and moved predominantly from northwest to southeast. In February, it appears that only the El Nino period has a large enough range. In July, the maximum wind range is up to 25 knots, moving predominantly from the southeast towards the northwest. The La Nina period strengthens wave intensity, in January with a range of 0 to 1.5 meters. In July, the wave intensity is higher during the La Nina period, with wave heights reaching 3 meters. The El Nino period strengthens wind intensity, while La Nina strengthens wave intensity in Maluku waters.

RESPONSE OF Citrus aurantifolia TO THE INHIBITION ZONE OF THE Aeromonas salmonicida BACTERIA IN TILAPIA (Oreochromis niloticus)

Adellia Rindi Putri Utami — 2024-06-26

The impact of using synthetic antibacterials creates a number of new cultivation problems, including: Bacterial resistance, retention of toxic substances and residues in the consumer's body. You need antimicrobial ingredients that can kill bacteria, one of which is the use of lime juice. The aim is to find out how strongly Citrus aurantifolia inhibits the bacteria Aeromonas salmonicida from Oreochromis niloticus. Using a completely randomized design (CRD) with five treatments. The results showed that the diameter of the inhibition zone for each Treatment A was 10.8 mm, Treatment B 12.8 mm, Treatment C 14.7 mm, Treatment D 16.7 mm, and Treatment E 19.1 mm. The relationship between administration of lime juice and the average diameter of the inhibition zone produced in inhibiting the growth of Aeromonas salmonicida bacteria shows a response that increases with increasing dose. Based on the Anova test using F (0.000) > F table at the 5% level of significance, lime juice (Citrus aurantifolia) has an effect on inhibiting the growth of Aeromonas salmonicida in each treatment.

EFFECTIVENESS OF LACTIC ACID BACTERIA SOLUTION CHALLENGE TEST BY USING DIFFERENT ENVIRONMENTAL CONTROLS CAVENDISH BANANA PEEL FERMENTATION RESULTS AGAINST MACKEREL FISH REVERSE BACTERIA

Reza Salsabila — 2024-06-26

Mackerel has an economical price, high market demand, and high catch yields so that it is widely used by the wider community compared to other types of pelagic fish, but it has disadvantages, namely that it is highly perishable because after being caught, the fish still undergoes a series of change processes before becoming rotten. Lactic acid bacteria can be applied to preserve fishery products by immersing them in a culture of lactic acid bacteria derived from fermentation. Cavendish banana peel fermentation contains secondary metabolite compounds that have the potential to be antimicrobial, anticancer and antidemartosis. Cavendish banana peels contain flavonoids, alkaloids, tannins, saponins and quinones. This research aims to determine the concentration of environmental controls between salt and vinegar in the Lactic Acid Bacteria fermentation solution from Cavendish banana peels which can provide effectiveness. lactic acid bacteria against mackerel spoilage bacteria. This research was carried out at the Fishery Products Processing Laboratory, Faculty of Fisheries and Marine Sciences, Padjadjaran University in January 2024. This research was carried out by testing Lactic Acid Bacteria from the fermented solution of Cavendish banana peels and spoilage bacteria from mackerel that was soaked for 15 minutes. using paper discs with 3 treatments and 9 repetitions. Observations were made at the 48th hour after incubation at a storage temperature in an incubator of 37^oC covering the diameter of the clear zone around the paper disc. The calculation results for estimating the addition of the best environmental control concentration were carried out by analyzing the data using the simultaneous F test followed by the Duncan test. The research results show that the best environmental control concentration addition for Cavendish banana peel fermentation as a source of Lactic Acid Bacteria against mackerel spoilage bacteria to extend shelf life is the addition of 3% salt with a pH of 4.4, a clear zone diameter of 21.37 mm and an effectiveness of 34.1% which is categorized as very strong.

VALUE OF UTILIZING AGRICULTURAL WASTE FOR FISH FEED (CASE STUDY OF FISH PELLET FEED)

Eko Sumartono — 2024-06-26

Most of the residents in Central Bengkulu Regency work as farmers, in addition to raising livestock and as fish cultivators. This condition needs serious attention from the local government and related stakeholders. The issue of feed has a large proportion of the sustainability of livestock businesses. On the other hand, palm fronds as post-harvest agricultural waste and bran as post-processing waste have not been utilized optimally. Even though the nutritional content contained in it is quite high. Agricultural and plantation waste by-products have good potential for use as animal feed. In order to guarantee safety and suitability, further processing and analysis is needed. Processing of raw materials is carried out in a combination (physical, chemical and biological). Preparation of feed formulations using Pearson's Quadrilateral Method. Testing is carried out in laboratories that consistently apply ISO/IEC 17025: 2017 from the National Accreditation Committee (KAN), namely the Animal Husbandry Service Service of East Java Province. The test result standard refers to SNI 01-4087-2006 concerning Artificial Feed for Catfish (Enlargement). Fish feed (pellets) that meet SNI 01-4087-2006 contain 3 types of content including ash content, crude fat, and aflatoxin. Types of content that do not meet SNI are crude protein, crude fiber, phosphorus, buoyancy and pellet diameter. The estimated cost of making fish food (pellets) costs around IDR. 6,100,- per kilogram. Cost analysis is relevant to feed quality and daily requirements without reducing nutritional value. Further research is needed to ensure that artificial feed is more cost efficient than conventional feed.

IDENTIFICATION OF FORMALDEHYDE CONTENT IN FISH SOLD IN SEVERAL TRADITIONAL MARKETS IN BANDUNG CITY

Lina Karlina — 2024-06-26

Fish are one of the types of food that quickly spoil. The use of ice blocks as a preservation medium for fish is relatively expensive due to the large amount of ice required. Therefore, some traders use formalin as a fish preservative because it is considered more economical. The purpose of this research is to analyze the presence of formalin in fish sold in some traditional markets in Bandung City. The identification of formalin content was carried out qualitatively using the Nash reagent and quantitatively using the UV-Vis spectrophotometer. The analysis of four traditional markets and three types of fish found formalin in Kosambi Market and Gedebage Market. The identified fish species containing formalin were mackerel (Rastrelliger) and tuna mackerel (Euthynnus affinis). The highest formalin concentration was found in tuna mackerel (Euthynnus affinis), with a concentration of 1.79 mg/L.

DENSITY AND MORPHOMETRIC CHARACTERISTICS OF ANADARA ANTIQUATA IN THE SEAGRASS BED OF BADAK BADAK ISLAND, BONTANG CITY

Siti Aminah Wuru — 2024-06-26

Anadara antiquata is a zoobenthic associated with seagrass beds and plays an important ecological role in coastal ecosystems, as a source of animal protein and economic value. This study aims to determine the density and morphometric characteristics of A. antiquata in the seagrass beds of Badak Badak Island, Bontang City. The research was carried out in September 2023 – March 2024. The research station is divided into 3 stations, each station is divided into 3 zones, namely the highest tide zone, the highest tide, the lowest tide and the lowest tide. Seagrass and mega A. antiquatasamples were collected using 50x50 cm quadrant transects. Data analysis includes seagrass density as well as density and morphometrics of A. antiquata as well as correlation analysis between seagrass variables and A. antiquata.Seagrass beds are composed of Enhalus acoroides and Cymodocea rotundata with an average density of A. antiquata reaching 27 individuals/m² and the density of A. antiquata is positively correlated with the density of seagrass stands. Characteristics of shell height and width in a ratio of 1:1.63

LEVEL OF ADDITION OF TILAPIA MEAL TO DRIED NOODLES

M. Fauzie Ahmadi — 2024-06-26

Increasing the protein content of dry noodles can be done by adding tilapia fish meal. This research aims to determine the maximum percentage level of adding tilapia meat flour in the manufacture of dry noodle products that is still preferred by panelists. The research was conducted from February to April 2024 at the Fishery Product Processing Laboratory, Faculty of Fisheries and Marine Sciences, Padjadjaran University. This research method was experimental with 4 treatments with levels of tilapia fish meal addition of 0%, 7.5%, 10% and 12.5%. The parameters observed were the level of preference for color, aroma, texture and taste of dried noodle products using a hedonic test. The research results concluded that the addition of 10% tilapia fish meat flour was the maximum addition treatment that was still preferred based on the hedonic test with an average value of color 7.24, aroma 6.76, texture 6.92, and taste 6.6 with an overall average is 6.88 which is close to 7 which can be defined as liking. And has a protein content of 17.88%, water content of 12.78%, ash content of 2.01%, fat content of 0.49%, and carbohydrate content of 66.84%.

BIOLOGY ASPECT OF MANGROVE SNAILS (Telescopium telescopium) AT LANTEBUNG MANGROVE ECOTOURISM MAKASSAR CITY

Mesalina Tri Hidayani — 2024-06-26

Mangrove snails (Telescopium telescopium) is one of the biota that plays a role in the process of litter decomposition and mineralization of organic matter in mangrove plants. The purpose of this study is to determine the abundance, size structure, growth pattern of mangrove snails (Telescopium telescopium) and water quality in the Lantebung Mangrove Ecotourism in Makassar City. The method of collecting mangrove snails by purposive sampling uses a quadrant transect measuring 1x1 m² with three repetitions at three observation stations. The water quality parameters measured were temperature, salinity, pH, and sediment. The results showed that the abundance of mangrove snails was 45 individuals (Station I), 46 individuals (Station II), and 45 individuals (Station III) respectively. The length of the mangrove snail (Telescopium telescopium) of station I ranged from 55.5-78.1 mm, station II 52.9-72.6 mm and station III 55.3-77.1 mm. The weight structure of the mangrove snail (Telescopium telescopium) of station I ranged from 17.0-37.4 g, station II 17.0-30.3 and station III 17.0-41.0 g. The growth pattern of mangrove snails based on the weight length relationship at the three stations showed a negative allometric equation (b<3), i.e. the length increase was faster than the weight increase. The highest abundance of mangrove snails is found at station II and the lowest abundance is at stations I and III. The size of the mangrove snail in terms of shell length at station I is longer than that of stations II and III and in terms of weight at station III is heavier than stations I and station II. The quality of the waters refers to Government Regulation no. 22 of 2021 attachment VIII for marine life that still supports the life of mangrove snails.

ANTIBACTERIAL EFFECTIVENESS OF VARIOUS TYPES OF HERBS EXTRACTS ON THE DIAMETER OF THE GROWTH INHIBITION ZONE OF Aeromonas salmonicida

Nashir Arifin — 2024-06-26

The use of chemicals such as antibiotics, immunostimulants and vaccines is one of the efforts that can be made to prevent disease attacks on fish. However, using chemicals such as antibiotics over a long period of time with inappropriate use will make disease-causing bacteria become resistant to these materials. Therefore, it is necessary to look for herbal ingredients as a substitute for antibiotics, for example the Chinese betel plant, anting anting plant and basil plant. The aim of this research was to determine the effect of different herbal plant extracts in inhibiting the growth of Aeromonas salmonicida bacteria. The research method used was experimental with an experimental design using a completely randomized design (CRD) consisting of 3 treatments, 9 replications. The Kirby-Bauer disc diffusion method was used in this research. Chinese betel simplicia, anting earrings and basil were soxhleted with 95% ethanol solvent until the solution was colorless and concentrated using a rotary evaporator. Next, an antibacterial test was carried out. The research results showed that the highest inhibitory power for the growth of Aeromonas salmonicida bacteria was obtained in the treatment of Chinese betel extract (Peperomia pellucida L) with an average of 7.75 mm, then in the treatment of anting anting extract (Acalypha indica L) with an average of 6.61 mmm. in the basil extract treatment (Ocimum sanctum L) the lowest growth inhibition zone was obtained, namely an average of 5.67 mm. Based on the Anova test with F count (0.000) > F table at a significance level of 5%, which means it shows that herbal plant extracts in each treatment have a significant effect on the growth inhibition of Aeromonas salmonicida bacteria.

SPECIES COMPOSITION AND CONSERVATION STATUS OF SHARKS AND RAYS BY-CATCH IN KAKAP RIVER WEST KALIMANTAN

Wolly Candramila — 2024-06-26

Production of shark and ray fisheries is still high from various locations in Indonesia. This condition can change the resource stock and its conservation status because it impacts decreasing the number of individuals in the population. Besides the main catch, shark production is also from bycatch, but this data still needs to be widely available. The research aimed to obtain data on the composition and current conservation status of the types of sharks and rays on the mainland of the Kakap River in West Kalimantan from bycatch. The survey method was used in this study by sampling for three months. The guidebook carried out data collection on sharks and rays for the data collection. Identifying samples was carried out directly in the field by collecting, grouping, and measuring the specimens’ body parts, counting the number of individuals, weighing their weight, and determining their sex. The total number of individuals obtained was 1232, consisting of 700 sharks of four species and 532 rays of nine. The species conservation status consists of five vulnerable species; four endangered species; three near threatened species; and one species data deficient. Those species with conservation status still have the risk of extinction in the future.

ORDINARY LEAST SQUARE ANALYSIS IN ESTIMATING THE PRODUCTION FACTORS OF MILKFISH (Chanos chanos) NURSERY CULTIVATION IN TURI DISTRICT, LAMONGAN

M. Khairul Anam — 2024-06-26

Milkfish is one of the freshwater fish commodities highly favored by the community, as evidenced by the increasing market demand annually. The demand for milkfish nursery continuously rises in line with the expansion of milkfish enlargement efforts for bait and consumption sizes. Therefore, intensive engineering of milkfish nursery production technology is necessary to fulfill the nursery demand both in quantity and quality. This research aims to understand milkfish cultivation practices with the nursery production system in Turi District, Lamongan Regency, and analyze the production factors influencing milkfish cultivation with the aforementioned system. This study employs a quantitative descriptive method. Data collected include both primary and secondary data, gathered through observation, interviews, questionnaires, and documentation techniques. The research findings indicate that factors positively affecting the income of milkfish farmers with the nursery production system include seed costs, fertilizer costs, and land area. This implies that the higher the utilization of these variables, the greater the income. On the other hand, labor costs and feed costs do not positively influence the income of milkfish farmers with the nursery production system.

THE CULTURE OF CATFISH (Clarias sp.) FRY IN THE PEAT POND BASED ON PINEAPPLE (Ananas comosus L) TUBER AND BANANA (Musa sp.) STEM CRUDE EXTRACT WITH COMMERCIAL PROBIOTIC MIX

Ricky Djauhari — 2024-06-26

One of the obstacles in cultivating catfish (Clarias sp.) is low feed efficiency. Therefore, a breakthrough is needed in catfish cultivation to increase the efficiency of feed utilization which will lead to increased production and profits in catfish cultivation businesses. This study aims to evaluate the effect of supplementation with crude extracts of pineapple tubers and banana stems as well as commercial probiotic mixes on the growth performance of catfish in flooded peat soil ponds. This study consisted of four treatments, namely control (A), 6% crude extract of pineapple weevil, 2% crude extract of banana stem, and 0.2% commercial probiotic mix (B), 6% crude extract of pineapple weevil, extract 2% banana stem crude, and 0.4% commercial probiotic mix (C), and 6% dose of pineapple tuber crude extract, 2% banana stem crude extract, and 0.6% commercial probiotic mix (D) are mixed into the feed with repeated three times. Fish with an average initial weight of 1.5 g were randomly stocked in 12 hapa measuring 1 x 1 x 1 m³ installed in earthen ponds at a density of 40 fish/hapa. Fish were given the test feed ad satiation twice a day for 28 days. Supplementation with a 6% dose of pineapple tuber crude extract, 2% banana stem crude extract, and 0.4% commercial probiotic mix (treatment C) showed the best results on catfish growth performance parameters, namely the least amount of feed consumption, but still had biomass performance. harvest and daily weight growth were the same as controls.

EFFECT OF LIGHT FLUCTUATIONS ON GROWTH RATE OF THALASSIOSIRA SP.

Budi Rianto Wahidi — 2024-06-26

Thalassiosira sp. is

Thalassiosira sp. is a diatom and used as a natural feed source in shrimp farming. Apart form naturally, Thalassiosira sp. can also be grown or cultured artificially on a laboratory scale using light. The purpose of this study was to determine the growth rate of Thalassosira sp. cultured on a laboratory scale with different fluctuations or periods of exposure to light. The study was carried out by differentiating the light and dark time periods for Thalassiosira sp. cultures, 0 hours: 24 hours; 6 hours : 18 hours; 12 hours : 12 hours and 18 hours : 6 hours. Data analysis used the ANOVA test, followed by the Games-Howell test to determine the best exposure time periodization. The light-dark time period of 12 hours : 12 hours was gained the optimum average growth rate in this study (2.5875 x 10⁵ cells/ml), which was obtained on the 6th day after the initial culture.

diatom and used as a natural feed source in shrimp farming. Apart form naturally, Thalassiosira sp. can also be grown or cultured artificially on a laboratory scale using light. The purpose of this study was to determine the growth rate of Thalassosira sp. cultured on a laboratory scale with different fluctuations or periods of exposure to light. The study was carried out by differentiating the light and dark time periods for Thalassiosira sp. cultures, 0 hours: 24 hours; 6 hours : 18 hours; 12 hours : 12 hours and 18 hours : 6 hours. Data analysis used the ANOVA test, followed by the Games-Howell test to determine the best exposure time periodization. The light-dark time period of 12 hours : 12 hours was gained the optimum average growth rate in this study (2.5875 x 10⁵ cells/ml), which was obtained on the 6th day after the initial culture.

CUNANG FISH FILLETS (Muraenesox Cinerus) WITH THE APPLICATION OF GMP AND SSOP

Pola Sabar Tumohon Panjaitan — 2024-06-26

Cuckang fish (Muraenesox cinerus) are widespread in Indonesian waters, have an elongated body shape like an eel. The name of the cuckang fish (Muraensox cinerus) is different in each region, in the Pati area this fish is called "tonang" fish, while in the regions of West Kalimantan, Riau, and the Natuna Islands this fish is usually called "malong" fish. The purpose of this observation was to determine the characteristics of frozen Cangfish fillet products which were processed by applying the Good Manufacturing Process (GMP) and Standard Sanitation Operation Procedure (SSOP). It cannot be denied that fishery products or those made from fish are perishable foods. Therefore, it is necessary to make efforts to increase food safety in order to maintain and maintain the quality of frozen Cang fish fillet products for the safety of consumers.

PHYTOPLANKTON COMMUNITY STRUCTURE IN THE EAST PLAWANGAN OF SEGARA ANAKAN, CILACAP

Dimas Setiawan — 2024-06-26

The East Plawangan waters of Laguna Segara Anakan (LSA), Cilacap are unique waters that are characterized by high biodiversity and are a meeting place for several rivers. It is thought that anthropogenic activities around waters will cause changes in ecological conditions. The organisms that first respond to these changes are phytoplankton. The aim of this research is to determine the structure of the phytoplankton community which includes abundance, diversity index, evenness index and dominance index, as well as to determine physical-chemical factors and the relationship between phytoplankton abundance and physical-chemical factors. The method used is a survey method with Purposive Random Sampling at 5 stations. The f test and Lackey Drop Microtransect Counting method were used to determine the abundance of phytoplankton. Principal Component Analysis (PCA) was used to determine the relationship between phytoplankton abundance and physical-chemical factors. The results showed that the abundance of phytoplankton was in the low and medium categories with values of 840 ± 435 to 3814 ± 939 ind/L; The diversity index ranged from 2.42 - 2.99 (medium); The phytoplankton evenness index ranges between 0.74 - 0.89 (high) and the phytoplankton dominance index ranges from 0.06 - 0.14 (low). Physical-chemical factors in East Plawangan are still at the threshold that can be tolerated by phytoplankton. PCA analysis showed a relationship between phytoplankton abundance and physical-chemical factors as indicated by two main factors (F1 and F2) which produced a variance value of 87.49% with the most influencing factor being orthophosphate.

WATER QUALITY ANALYSIS ON PHYTOPLANKTON ABUNDANCE AS A BIOINDICATOR OF MARINE WATER TROPHIC STATUS

Ayu Mariati Hutabarat — 2024-06-26

Phytoplankton is an organism that plays an important role as an oxygen producer and a measure of water pollution. Phytoplankton activity is strongly influenced by water quality parameters such as temperature, pH, light intensity, current speed, nitrate, phosphate, DO, BOD and salinity. However, studies on the analysis of water quality studies on phytoplankton abundance are still little implemented in Aceh waters. This study aims to analyze water quality, determine the type and abundance, diversity, uniformity, dominance of phytoplankton. Linear regression analysis was used to determine the relationship between environmental parameters on phytoplankton abundance, in the marine waters of Pulau Banyak District, Aceh Singkil Regency. This research was conducted in September-November 2024 in the waters of Baguk Island and Panjang Island, Pulau Banyak Subdistrict, Aceh Singkil Regency. Data collection using purposive sampling method based on the results of observations. From the results of the study obtained phytoplankton abundance in the waters of Baguk Island and Panjang Island amounted to 31.11 - 55.56 cells/L consisting of 28 genus which are divided into 5 classes namely Bacillariophyceae, Cyanophyceae, Dynophyceae, Oligotrichea, Zygnematophyceae. The ecological index in the waters of Baguk Island and Panjang Island consists of a diversity index (H') including the medium category, a uniformity index (E) including the high category and a dominance index (D) including the low category. Regression results show that the temperature parameter has a strong influence and relationship to phytoplankton abundance of 75.7%. While other parameters do not significantly affect phytoplankton. The waters of Baguk Island and Panjang Island are included in oligotrophic status and moderately polluted.