Jurnal Perikanan Unram

THE ADDITION OF CALCIUM CARBONATE AND SODIUM CHLORIDE WITH DIFFERENT RATIOS ON THE GROWTH AND SURVIVAL OF VANAME SHRIMP (Litopenaeus vannamei) IN FRESH WATER MEDIA

2024-07-11T15:19:35+08:00

This research aims to determine the effect of calcium carbonate and sodium chloride on the growth of vannamei shrimp in rearing media with a salinity of 0 ppt. The research was carried out for 45 days, in the Aquaculture Laboratory and Analysis of sodium chloride levels at the Analytical Chemistry Laboratory, Mataram University. using an experimental method with a completely randomized design, consisting of 4 treatments and 3 replications, Using the Completely Randomized Design method. There were 5 treatments with 3 repetitions in each treatment, So in this research there were 15 experimental units. Data were analyzed using Analysis of Variance (ANOVA), and continued with the Duncan test with a confidence level of 95%. The results of the research show the effect of adding calcium carbonate (40 ppm) and Natrium klorida (1,1 ppt) on the growth of vannamei shrimp (Litopenaeus vannamei), namely survival rate, absolute and specific weight growth, absolute and specific length growth, feed conversion ratio, oxygen consumption rate, diversity coefficient, water quality parameters (temperature, dissolved oxygen (Do), Potential of Hydrogen (pH), ammonia, calcium levels, alkalinity and Natrium klorida (NaCl)), is the best treatment for cultivating vannamei shrimp in fresh water media.

THE USE OF PAYUS MEAT (Elops hawaiensis) AS A BASIC MATERIAL IN THE FISH CRACKERS PRODUCTION

2023-08-26T12:48:53+08:00

Payus fish (Elops hawaiensis) is a predatory pest in milkfish ponds which has soft-textured flesh with a high enough protein content, namely 22.58%, so it has the potential as a follow-up product such as fish crackers. This research was conducted to determine the optimal amount of carp fish meat in the formulation of good quality and acceptable by the public. This study used a completely randomized design (CRD) with 4 treatments and 5 repetitions. The parameters of this study include swelling power, oil absorption, chemical properties, and organoleptic value of Payus fish crackers. The results showed that Payus fish can be used as a basic ingredient for making fish crackers with the best treatment at P2 which produced 238.81% swelling power, 37.53% oil absorption, 4.29% moisture content, 17.92% protein content, 17.92% protein content. 2.47% fat, and 54.11% carbohydrate content. Has sensory acceptance with an appearance value of 8.40, an odor value of 8.19, a taste value of 7.94, and a texture value of 7.74.

THE EFFECT OF ADDING ASTAXANTHIN TO COMMERCIAL FEEDING ON GROWTH AND SURVIVAL OF WINDU SHRIMP FRENCH (Penaeus mododon)

2024-05-01T22:28:28+08:00

Tiger prawns are a fishery commodity that has quite high economic value because tiger prawns taste delicious and tasty and their nutritional content is very high. The obstacles often faced in cultivation are slow growth and low survival of tiger prawn fry (Penaeus monodon), so this research aims to analyze the effect of adding astaxanthin to commercial feed on the growth and survival of tiger prawn fry (Penaeus monodon) and determine the best dose of astaxanthin. added to commercial feed can increase the growth and survival of tiger prawns (Penaeus monodon). The research method used was a Completely Randomized Design (CRD) with 4 treatments and 3 three replications. The treatments that will be carried out are: control, PA1 (150 g/ 1/2 kg feed), PA2 (250 g/ 1/2 kg feed) and PA3 (500 g/ 1/2 kg feed). Parameters observed: Absolute Length Growth, Absolute Weight Growth, Daily Growth Rate, Survival rate (SR), Feed Efficiency and Feed Conversion Ratio. The results of this research show that the best effect of Astaxanthin in commercial feed for the growth of tiger prawns is in the PA2 treatment (addition of astaxanthin at a dose of 250 g).

Keywords: astaxanthin, growth, survival rate, tiger prawns

CONVERSION OF FISHING VESSEL LUBRICANT WASTE INTO PURE OIL AND DIESEL FUEL: PROCESS AND POTENTIAL

2024-05-16T18:49:44+08:00

Bitung city is one of the industrial, port, and tourist centers in North Sulawesi Province, with many fishing vessels passing through and docking in Bitung waters. Consequently, there is a potential for marine environmental pollution due to oil spills and the intentional or unintentional discharge of used oil into the sea. According to BPS data in 2022, there are approximately 1,100 fishing vessels operating in Bitung waters. Therefore, the daily demand for oil to meet the lubrication needs of main and auxiliary engines is increasing. This poses a significant environmental problem because fishing vessels in Bitung are generally not equipped with oil-water separators. The aim of this activity is to recycle used oil and refine it, while also converting the used oil into diesel fuel. The method used involves collecting used oil from fishing vessels, dissolving it with H₂SO₄ and NaOH, and separating it through a fractionation process to remove water molecules and heavy metals trapped in the long hydrocarbon chains of the oil. The results of the study indicate that this technology is effective in reducing contamination and producing products that meet standards. The addition of NaClO-NaOH-NaClO solution to kapok fiber enhances its hydrophilic properties, and the combination of H₂SO₄ and NaOH successfully binds impurities in the used oil. The use of activated charcoal effectively changes the color of the oil and removes contaminants. The recycled oil has a density of 0.837 g/cm³ and a specific gravity of 0.884, meeting the existing standards. The diesel fuel produced has a density of 0.801 g/cm³, approaching the industrial standard of 0.820 g/cm³. Thus, recycling used oil has the potential to be a suitable solution for addressing environmental issues while supporting the local economy

FACTORS AFFECTING SEAWEED CULTIVATION PRODUCTION IN PEKALONGAN DISTRICT, CENTRAL JAVA PROVINCE

2024-05-16T18:23:13+08:00

Seaweed is a fishery product that is widely used in various industries, including food, cosmetics, feed and others. Seaweed production does not always increase according to the target but there are several declines, such as in Pekalongan Regency in 2018, there was a quite drastic decline compared to the previous year. The aim of this research is to analyze the factors that are thought to have caused a decline in seaweed production in Central Java Province, especially in Pekalongan Regency. The research method used in the research is secondary data obtained from the Pekalongan Regency Central Statistics Agency. The results of the analysis that have been carried out show that there are several factors that have caused the decline, including tidal waves that occurred in 2017-2018, a decrease in the number of ponds owned by the community, and an erosion rate that is estimated to occur at 0.5 m per year. Decline in seaweed production in Pekalongan Regency is caused by several factors including abrasion, tidal waves, and a decrease in the number of ponds owned by the community in the Pekalongan Regency.

IDENTIFICATION OF PELAGIC FISH TYPES AND SUSTAINABLE MANAGEMENT OF CAPTURE FISHERIES AT THE KASIWA MAMUJU FISH LANDING BASE, WEST SULAWESI PROVINCE

2024-05-29T10:51:59+08:00

Fisheries are public resources (open access), or public resources, which can lead to overfishing or underfishing if not managed properly. This research aims to analyze fishing management at the Kaswa Mamuju Fish Landing Site (PPI) and focuses on aspects of sustainability, efficiency and safety of fishermen. This research involves collecting primary data through interviews and field observations as well as secondary data from related organizations. Based on the Kasiwa Mamuju Fish Landing Base survey, small pelagic fish are among the types of fish landed by PPI compared to other types of fish, the pelagic fish is tuna. The length of the fish taken varies depending on the species, and varies between 17 and 110 centimeters. In general, the fish landed at the Kasiwa Mamuju fish landing site are large and immature fish are not caught. The number of fishing boats is mostly motorboats and the number continues to increase every year until it reached 2,352 in 2017, 2,412 in 2018, and 2,575 in 2019. Therefore, the types of motorboats are increasing every year. The number of motorized vessels also increases every year, reaching 647 vessels in 2017, 650 vessels in 2018, and 897 vessels in 2019. There was a decrease in the number of non-motorized vessels in 2019, from 611 vessels in 2018 to 574 vessels.

PUBLIC KNOWLEDGE REGARDING THE EXISTENCE OF THE BANGGAI CAPUNGAN FISH Pterapogon kauderni KOUMANS, 1933 (PERCIFORMES, APOGONIDAE) IN THE BAY OF PALU, CENTRAL SULAWESI

2024-07-11T14:38:20+08:00

The Banggai cardinalfish, known internationally as the Banggai cardinalfish, is an endemic species of the Banggai Archipelago and its surrounding marine waters. In general, the public's understanding of the existence and conservation efforts for this fish is limited due to a lack of access to information and education about the species. Public knowledge about the existence of the Banggai cardinalfish is a crucial factor in the success of conservation programs. One of the introduction habitats for the Banggai cardinalfish is the waters of Teluk Palu. The purpose of this research is to explore the level of knowledge and perceptions of the community regarding the presence of the Banggai cardinalfish in Teluk Palu. The sampling method used is purposive sampling, obtaining primary data through field observations, questionnaires, in-depth interviews, and research documentation. Secondary data were obtained from online scientific reference searches. Data analysis used includes descriptive and qualitative analysis. The research results show that the knowledge and understanding of the Teluk Palu community about the existence and conservation of the Banggai cardinalfish still require significant improvement. Through education, community involvement, and the provision of sustainable livelihood alternatives.

CLOWN FISH Amphiprion sp. CULTIVATION TECHNOLOGY IN MAIN ASSOCIATION OF MARINE CULTIVATED FISHERY (BBPBL), LAMPUNG

2024-05-29T16:54:06+08:00

Clownfish Amphiprion sp., have a relatively wide distribution area, especially in Indo-Pacific waters. In nature these fish live in small groups in one anemone and consist of one pair of parents, the others are usually smaller in size which are still in the male sex. If one of the parent pairs dies, the position will be replaced by the largest in the group, especially the female. This condition is usually called sequential hermaphrodite. The purpose of this study was to gather information on the techniques for fish hatchery clownfish to produce quality fish. Clownfish spawn with a sex ratio of 1:1, with an average spawning frequency of 2 times a month. Clown fish can produce eggs with an average of 419 eggs, fertilization rate (FR) 76,37%, hatching rate (HR) 75,27%, and survival rate (SR) 58,35%. For one year, the total number of fish hatchery that can be produced is 108.911. Payback period of 8,2 years, break event point (unit) of 73.859 fish/year, break event point (rupiah) of Rp. 369.292.918, and cost of production of Rp. 3.817/fish

EFFECT OF FEEDING SURVIVAL OF CANTANG GROUP (Epinephelus fuscoguttatus x Epinephelus lanceolatus) SEEDS IN SITUBONDO, EAST JAVA

2024-05-29T16:54:48+08:00

Fish growth is one of the problems faced by many grouper fish farmers, where this problem requires a large amount of money. The problem with growth is the lack of feed needed to increase protein for the growth of grouper fish. The aim of carrying out this research is: To determine the effect of feed on the survival of Cantang Grouper. The results of the research show that in providing feed at CV. Jaya Utama Abadi suits the nutritional needs of grouper fish, from natural food to artificial food. Natural food in the form of phytoplanton and zooplanton. The type of phytoplanton used is Chorella sp. and for zooplanton there are two types, namely Rotifera sp. and Artemia. The planton is cultured itself starting from fertilization, hatching, and harvesting. Butane feeding is also supplemented with rebon shrimp

MACROZOOBENTHOS ABUNDANCE IN BEACH OF TANAH MERAH SAMBOJA KUTAI KARTANEGARA EAST KALIMANTAN

2024-06-07T06:57:54+08:00

Samboja beach is one of the coastal areas in Kutai Kartanegara Regency, which has various fisheries and marine resources such as macrozoobenthos. One of the ecological functions of macrozoobenthos is that it is a biological bioindicator in the waters and transfers energy in the food chain. This study aims to determine the type and abundance of macrozoobenthos, sediment texture type, organic carbon, nitrate and phosphate content, sediment type and abundance of macrozoobenthos at Tanah Merah Beach Samboja. Sediment samples were taken at the surface (0-10 cm) by placing quadrant plots on a 120 m long transect line (50x50 cm²). 50 macrozoobenthos species were found, consisting of Gastropoda, Bivalvia and Schapopoda. Macrozoobenthos abundance ranged from 60 to 268 ind/m2. Sequential ecological indices of diversity included the medium category with high uniformity and low dominance. The sediment texture at points near the coast was sandy loam while towards the sea textured sand. Sediment content in organic carbon ranged from 0.41% to 1.18% (very low), nitrate between 6.63 and 16.69 mg/L (high) and phosphate from 29.01 to 71.27 mg/L (high). There was a positive relationship with a moderate correlation between organic carbon and macrozoobenthos abundance. The relationship between nitrate and macrozoobenthos abundance was a low correlation. In contrast, a positive correlation was found between phosphate and macrozoobenthos abundance. Water quality is still normal and supports the survival of macrozoobenthos.

SEX REVERSAL OF NILE TILAPIA (OREOCHROMIS NILOTICUS) THROUGH IMMERSION IN METHANOL EXTRACT OF SEA URCHIN (DIADEMA SETOSUM) GONAD AT A DOSE OF 8 MG/L

2024-06-07T06:58:21+08:00

REVEALING THE CONDITION OF DARAH MUSSELS (Anadara granosa) AND KEPAH MUSSELS (Meretrix meretrix) ON BATU BELUBANG BEACH, BANGKA ISLAND

2024-06-07T06:58:36+08:00

Batu Belubang Beach has abundant biological resources of Darah Mussels (Anadara granosa) and Kepah Mussels (Meretrix meretrix) in season. On the other hand, Batu Belubang waters are a post-tin mining area, therefore it is a concern for people to consume shellfish from the area. This concern is caused by the results of previous studies that said that post-tin mining areas left heavy metals, one of which was non-essential heavy metals such as Pb and Cu. Therefore, this study aims to examine the heavy metal content of Cd and Pb in shellfish meat, and determine the condition of gill tissue and meat of Darah Mussels (Anadara granosa) and Kepah Mussels (Meretrix meretrix) from Batu Belubang. This research method is purposive sampling, and several analyses consisting of: analysis of heavy metals in sediment and meat, tissue observation from muscle/meat and gill histology. The results showed that the concentration of heavy metals Cd, Pb in sediment is still below the quality standard, this is due to the sediment texture at Batu Belubang Beach dominant with sand, so it has a low binding power to heavy metals. The concentration of heavy metals in meat is also still below quality standards, so it is still safe for consumption. This condition is also strengthened by the results of tissue observations that show the condition of the flesh and gill tissues has not been damaged. This condition shows that both shells have not experienced tissue disruption because the accumulation of heavy metals is still very low.

DENSITY, DIAMETER, GROWTH RATE, CHOROPHIL A AND LIPIDS OF CHLORELLA VULGARIS ON FERMENTATION OF GREEN BEAN SPROUTS (Phaseolus radiatus)

2024-06-07T06:59:02+08:00

DISTRIBUTION CHANNELS OF KUNIRAN (Upeneus sulphureus) FISH RESULTS IN THE BANYUSANGKA KECAMATAN VILLAGE OF TANJUNG BUMI, BANGKALAN DISTRICT, MADURA

2024-06-07T06:59:51+08:00

This research was conducted at Banyusangka Village TPI with the object of research on fish distribution, namely from fishermen, collecting traders, retailers. Data analysis in this research are: non-fixed cost, production cost, marketing margin analysis, profit percentage, marketing cost share, profit share, marketing margin distribution. The results showed that the age level of fishermen was 36-45 years old with a percentage of 45%. The average length of experience of fishermen is 9 to 13 years as a fisherman. The average profit per year is IDR 89,288,571 and profit per month is IDR 3,922,591, large traders are IDR 94,171,667 and profit per month is IDR 7,847,639. Small traders IDR.27,314,267 and profit per month IDR. 2.276.189. Analysis of the marketing margin of Rp.2000, the profit received by fishermen is 1.2%, the marketing cost is IDR.326,883 per month, the distribution of the marketing margin of fish traders is IDR.23,027.

USE OF FERMENTED CASSAVA PEEL AND SALT SOLUTION ON THE SHELF LIFE OF RED TILAPIA FILLETS BASED ON THE NUMBER OF MICROBES AT LOW TEMPERATURE STORAGE

2024-06-18T12:25:30+08:00

This research was conducted to analyze the best salt concentration in the cassava peel fermentation solution to extend the shelf life of red tilapia fillets based on the number of microbes during low temperature storage (5°-10°C). Soaking red tilapia fillets using fermented cassava peel solution with various added salt concentrations consisting of 4 treatments, namely 0% (control), 2%, 3% and 4%, soaking for 30 minutes for each fillet according to the treatment. The parameters observed were the number of bacterial colonies and the degree of acidity (pH), each parameter was carried out in duplicate. For concentrations of 0%, observations were made on days 1, 3, 6, 7, 8, 9, while for concentrations of 2%, 3% and 4%, observations were made on days 1, 4, 7, 8, 9, 10, 11 and 12. The results of the study showed that soaking red tilapia filets using fermented cassava skin solution, namely adding 3% salt concentration, had the best effect on shelf life during low temperature storage with an acceptance limit of up to the 11th day with TPC value is 2,5 x 10⁶ and a pH value is 6,5.

ANALYSIS CATH PER UNIT EFFOR (CPUE) AND MAXIMUM SUSTAINABLE YIELD (MSY) OF INDIAN SCAD (Decapterus sp) LANDED AT OCEANIC FISHING PORT (PPS) OF KENDARI

2024-06-18T12:25:41+08:00

The Banda Sea is one of the most fertile and potential waters in the field of fisheries and the largest fishing area in Indonesia. This study aims to analyze the CPUE and MSY of indian scad from 2016-2022 (last 7 years). The value of Catch per Unit Effort (CPUE) fluctuated from 2016-2022. The highest purse seine equivalent CPUE value in 2018 was 4,562 kg/trip and the lowest in 2021 was 2,573 kg/trip. Based on the Schaefer model, the optimum fishing effort value is 3,382 trips per year and the maximum sustainable catch value is 7,936,016 kg per year. From this value, it indicates that the indian scad landed at PPS Kendari is underfished because it has not reached its sustainable potential

POTENTIAL OF LOOSE PALM OIL AS AN ALTERNATIVE FEED TO INCREASE THE GROWTH OF CATFISH (Clarias batrachus)

2024-06-26T15:09:13+08:00

Aquaculture activities generally use commercial feed to fullfill the nutritional needs of fish. The use of commercial feed can increase production costs, because they still use imported raw materials. To reduce production costs, can use alternative feed by utilizing local materials. Palm oil is one of the abundant local raw materials in Indonesia and produce underutilized waste such as loose palm oil. This study aims to determine the effect of using loose palm oil as an alternative feed on catfish. This study consisted of three treatments (control, soft loose palm oil, and wormy loose palm oil) of three repeats each. Feeding catfish with ad satiation for 28 days. Parameters observed include survival rate, absolute weight growth, absolute length growth, and spesific growth rate. The results showed that the best treatment was the use of wormy loose palm oil feed with a survival rate of 100%, absolute weight growth of 44,23 g, absolute length growth of 6,20 cm, and spesific growth rate of 10,22%.

PREFERENCE LEVEL OF PUFF PASTRY WITH THE ADDITION OF TILAPIA FLUOR

2024-06-26T15:09:27+08:00

Increasing the protein content in Puff Pastry can be done by adding nila fish meat flour. This research aims to determine the percentage of nila fish meat flour addition level in making puff pastry products that are most preferred by the panelists. The study was conducted from February to March 2024 at the Fisheries Product Processing Laboratory, Faculty of Fisheries and Marine Sciences, Padjadjaran University. The method in this research is experimental with 4 treatments of nila fish meat flour addition at 0%, 2.5%, 5%, 7.5% of the weight of wheat flour. The parameters observed were hedonic test with levels of preference for appearance, aroma, texture, and taste conducted on 25 semi-trained panelists who are students of the Faculty of Fisheries and Marine Sciences. The next parameter is proximate testing for the control treatment and the most preferred one, determining the protein content, water content, ash content, fat content, and carbohydrate content. The research results conclude that the addition of 2.5% nila fish meat flour is the most preferred treatment based on hedonic test with median values of appearance 7, aroma 7, taste 9, texture 9, and alternative value 8.57 and has a protein content of 8.74%, water content of 1.48%, ash content of 1.80%, fat content of 38.64%, and carbohydrate content of 47.12%.

Keywords: hedonic, proximate, fish protein, preference level

TECHNICAL AND OPERATIONAL SUITABILITY OF BUNGUS OCEANIC FISHING PORT IN SUPPORTING MEASURED FISH CAPTURE

2024-06-26T15:09:50+08:00

This study analyzes the suitability of the technical and operational criteria of the Bungus Oceanic Fishing Port (PPS Bungus) in supporting measured fish capture. Fishing ports play a crucial role in the capture fisheries sector, providing services from fish landing to distribution and back to the sea. Based on Government Regulation Number 27 of 2021, this study evaluates the compliance of the fishing port's technical and operational criteria. The research was conducted in 2023 at PPS Bungus, West Sumatra, using a descriptive comparative method. Data were collected through observation, interviews, literature review, and documentation. The research results indicate that the port's operational criteria are not fully met, particularly in terms of fish loading and unloading activities, which only average 3-5 tons per day. Additionally, the measured fish capture policy has not been fully implemented at PPS Bungus due to the absence of post-production PNBP receipts from fishery resources. PPS Bungus needs to improve its facilities and implement the measured fish capture policy to support fisheries sustainability.

PRODUCTIVITY OF PURSE SEINE FISHING TOOLS OPERATING IN THE WATERS OF OUTER AMBON BAY, MALUKU.

2024-06-26T15:07:42+08:00

The decline in fish populations can negatively impact the livelihoods of fishermen and local food security. Therefore, maintaining the sustainability of fisheries is an urgent necessity. Evaluating the productivity of purse seine catches in the outer waters of Ambon Bay is crucial in this context. This study aims to measure the productivity level of purse seine fishing gear and identify the factors that influence it. The research was conducted from June 2023 to May 2024 in Laha Village, Outer Ambon Bay, Ambon Island. The research method used is a quantitative descriptive method, which aims to describe the productivity of purse seine fishing gear in detail based on data obtained in the form of graphs and tables. Data collection was carried out through field surveys and direct observations during fishing activities. The data analysis results showed that the highest volume and number of trips were in November, with 18 trips and a production volume of 644 kg/trip, while the lowest was in May, with 12 trips and a production volume of 184 kg/trip.

ANALYSIS Catch Per Unit Effort (CPUE) AND Maimum Sustainable Yield (MSY) MALE MACKEREL (Rastrelliger kanagurta) FLYING IN THE SAMUDERA FISHING LAND (PPS) KENDARI

2024-07-11T14:13:02+08:00

The Banda Sea is an Indonesian water body that holds potential for small pelagic fisheries resources. Situated between Sulawesi Island and Maluku, it is part of the Fisheries Management Area Of The Republic Of Indonesia (WPP-NRI 714), Male mackerel (Rastrelliger kanagurta) is one of the fish species with high economic value, greatly favored by the community for consumption. This has led to an increase in its capture rates. Therefore, the research aims to determine the CPUE and MSY of Indian mackerel in the Kendari Ocean Fisheries Port. Data collection was conducted at the Kendari Ocean Fisheries Port from logbooks, and the research lasted from November to December 2023. The results showed that the standard fishing gear used to catch these fish is purse seine. The status of the utilization of the fishery resources is said to be experiencing underfishing. Based on the research results, the maximum sustainable yield (MSY) is 96,386 kg/year, with an optimal fishing effort of 2,300 trips/year (Fox model).

IDENTIFICATION OF NONVOLATILE FLAVOR COMPOUNDS IN FRESH INDIAN MACKEREL (Rastrelliger sp.)

2024-07-11T14:54:50+08:00

Nonvolatile flavoring ingredients greatly affect food flavor and can affect food acceptability among consumers. The purpose of this study aimed to determine the mackerel's nonvolatile taste components. High Performance Liquid Chromatography (HPLC) was used to analyzed fish samples. 15 different kinds of amino acids were identified in the study: seven non-essential amino acids (glutamic acid, aspartic acid, arginine, alanine, glycine, serine, and tyrosine) and eight essential amino acids (lysine, leucine, valine, isoleucine, threonine, phenylalanine, methionine, and histidine). Glutamic acid (3.65%), aspartic acid (2.35%), lysine (2.37%), leucine (1.90%), arginine (1.46%), and alanine (1.41%) were discovered to be the main nonvolatile components in mackerel. Moreover, it was found that aspartic acid and glutamic acid provide the umami flavor, arginine, leucine, and lysine give the bitter taste, and alanine provides a sweet taste.

EFFECTIVENESS OF MANGROVE LEAF EXTRACT Avicennia marina ON DAILY GROWTH OF VANNAME SHRIMP (Litopenaeus vanname)

2024-07-19T18:01:51+08:00

One of the problems in shrimp farming is the high price of feed. The objective of this study was to find out the effect of the addition of mangrove extract Avecenia marina pada feed on the growth of vanname shrimp. The study used a completely randomized design (CRD) with 4 treatments and 3 replicates. The treatment used for growth is the addition of A. marina leaf extract at a dose: A (275 ppm in 500g feed), B (285 ppm in 500g feed), C (295 ppm in 500g feed), D (305 ppm in500g feed). The results of analysis of variance (ANOVA) on the growth of Vanname shrimp specific growth rate described that F value is greater than F Table, which indicates that the administration of Avicennia marina leaf extract has an effect on the best specific growth rate of 6.52% achieved in treatment D. The highest EPP calculation results amounted to 88.33% and Survival Rate reached an average of 97.25% for all treatments. Water quality during the study was within a reasonable range to support shrimp growth.

MEGA GASTROPODA ASSOCIATION IN THE MONOSPECIFIC SEAGRASS MEADOWS OF BADAK BADAK ISLAND, BONTANG CITY

2024-07-19T18:01:25+08:00

Mega Gastropods play an important role in the food chain in bottom waters. Mega Gastropods are associated with seagrass beds which have sand and sandy mud bottom substrates. The aim of the research is to determine the association of Mega Gastropods in monospecific seagrass beds as their habitat. This research was carried out from October 2023 - February 2024 in the seagrass beds of Badak Badak Island. The station is divided into 3 stations and each station is divided into 3 zones. Seagrass and Mega Gastropod samples were taken using a 50x50cm quadrant frame. The relationship between seagrass density and Mega Gastropod density was used by the Pearson's Product Moment correlation test and the distribution of basic substrate fractions and the distribution of Mega Gastropod species was used by Principal Component Analysis (PCA) and Corespondence Analysis (CA). The Mega Gastropods found consisted of L. turturella, C. tigris, P aluco, and T. telescopium. The relationship between Mega Gastropod density and E. acoroides density was not positively correlated and the presence of Mega Gastropod species was associated with the characteristics of the basic substrate fraction.

ANALYSIS OF CONSUMER BEHAVIOR IN MAKING DECISIONS TO PURCHASE FRESH FISH AND PROCESSED FISH PRODUCTS IN GARUT REGENCY

2024-07-19T18:00:32+08:00

This research aims to analyze consumer behavior in making decisions to purchase fresh fish and processed fish products at the Garut Fish Culinary Center. Data collection and processing was carried out in January – June 2024 at Tarogong Kaler District, Garut Regency. The research method used is the case study method and the sampling technique is accidental sampling. Data analysis uses Spearman Rank and descriptive marketing mix. In this research, the variables that influence consumers' decision to purchase fresh fish are found, namely product and service motivation, and income motivation for processed fish products. The results of the marketing mix research (7P) are 1) Fresh fish product mix in the form of carp, tilapia, gourami, nilem and catfish, while processed fish products include fried fish and grilled fish. 2) Price mix for fresh fish, carp and tilapia ranging from IDR 35,000-IDR 38,000/kg, gourami IDR 60,000/kg, nilem fish and catfish IDR 25,000/kg and processed fish products starting from IDR 25,000/portion, 3 ) Place mix in the form of first floor for fresh fish commodities and second floor for processed fish product commodities, 4) Promotion mix in the form of word of mouth and business cards, 5) People mix in the form of sellers and buyers, 6) Process mix, including buying and selling flow to payment methods, and 7) Physical evidence mix in the form of banners and menu cards.

Key words: Marketing Mix Test, Purchase Motivation, Word of Mouth (WOM) and Spearman Rank Correlation

LEVEL OF CONSUMER SATISFACTION IN DECORATIVE FISH SHOPS IN CILEUNYI DISTRICT (Case Study of Ornamental Fish Shops in Cileunyi District)

2024-07-19T17:59:10+08:00

This research aims to analyze characteristics of consumers and sellers as well as level of consumer satisfaction in ornamental fish shops in Cileunyi District and analyze main variables that greatly influence level of consumer satisfaction. Data collection and processing was carried out in May – June 2024 at Cileunyi District, Bandung Regency. The research method used is case study method, with a sampling technique namely purposive sampling. The analysis used is Customer Satisfaction Index (CSI) and Descriptive Marketing Mix. The results of this research showed that CSI value was 80.5% in satisfied category. The main variables that most influence consumer satisfaction are variables of medicinal and vitamin products for ornamental fish, ornamental fish in healthy condition, traders providing information that is easy for consumers to understand, ornamental fish traders greeting

ANALYSIS OF THE EFFECT OF FEEDING COMMERCIAL FERMENTED FEEDS ON THE GROWTH AND SURVIVAL OF NILA FISH (OREOCHROMIS NILOTICUS)

2024-07-19T17:57:48+08:00

The use of antibiotics can be used to kill harmful microorganisms, but uncontrolled use will have a negative effect on the body's defense system and the balance of important microorganisms and often give rise to more virulent pathogenic strains (Tumbol & Undap, 2016). One of the alternative efforts that can be made to increase the growth of tilapia is by adding probiotics to feed. Therefore, recent developments in cultivation businesses have developed the use of probiotics as a solution to abandon the use of chemicals and antibiotics. Because the use of probiotics in cultivation can maintain microbial balance and control phatogens in the digestive tract (Mansur & Tangko, 2008). Probiotics are living microorganisms that are very beneficial for living creatures, one of which is fish. The microorganisms contained in probiotics are able to help the digestion of food in the bodies of animals and humans so that food containing probiotics will be able to be digested and absorbed by the body properly. This research method is a description method using tables and graphs and the data obtained is analyzed using statistical tests to see real differences. The results of the research show that the addition of probiotics and molasses can have a significant effect on growth where the probiotics are completely absorbed in the feed so that they can improve the performance of the microflora in the digestive tract and help the food digestion process and stimulate increased nutrient absorption to support fish growth, while the treatment of providing probiotics and molasses in Feed did not have a significant effect on tilapia survival. After Tukey's test, it was discovered that there was no significant difference between treatments and tilapia survival during the study.

SATISFACTION OF FISHERY ENTERPRISES WITHEXTENSION PERFORMANCE IN MAHAKAM ULU DISTRICT

2024-05-01T22:27:52+08:00

Fisheries business actors often receive little attention from the government, especially from fisheries instructors, this often results in fundamental problems such as suboptimal capture and aquaculture production results, which can result in uncertain income. The research was carried out in Mahakam Ulu Regency in 2022 starting from August to December. The aim of the research is to determine the level of satisfaction of fisheries actors with the performance of fisheries instructors, determine the processes carried out to improve the performance of fisheries instructors, and find out the obstacles faced by instructors in carrying out extension activities. The method used was purposive sampling to determine respondents to be sampled based on certain criteria. The analysis method uses a Likert scale. The results of the study showed that the average satisfaction level of fisheries actors was 2.50, which means that fisheries actors were less satisfied with the performance of fisheries instructors. The obstacles faced by fisheries instructors were in terms of location access, instructor staff, facilities and infrastructure, government policy, participation and activeness group

ANALYSIS OF SHORELINE CHANGES IN INDRAMAYU DISTRICT USING NORMALIZED DIFFERENCE WATER INDEX (NDWI)

2024-05-29T10:58:38+08:00

Indramayu Regency is one of the areas on the north coast of Java Island with a coastline length of ± 140 km. Over the past 15 years, abrasion and accretion phenomena have occurred in Indramayu Regency, causing significant changes to the coastline. Therefore, remote sensing technology is one of the solutions to identify beaches that experience shoreline changes. The purpose of the study was to analyze changes in coastline and determine the extent of accretion and abrasion in each sub-district in Indramayu Regency over time. The method used is Normalized Difference Water Index (NDWI) which identifies shoreline changes based on differences in water and land and detects changes in coastal accretion and abrasion. The data used is secondary data consisting of Landsat 8 OLI (Operational Land Imager) images in 2015, 2019, and 2023 and Indramayu Regency coastline data in 2015 sourced from Bappeda Indramayu Regency. The results of the analysis of the length of the coastline in Indramayu Regency have experienced significant changes where the coastline is getting longer. The difference in the length of the coastline is around ±3.29 km in the 2015-2019 period and around ±7.29 km in the 2015-2023 period. The results of the analysis show that there are significant changes in the incidence of accretion and abrasion in Indramayu Regency. In 2015 to 2023 the incidence of abrasion decreased by ± 49.51 Ha by about 20% and the incidence of accretion in 2015 to 2023 decreased by ± 93.88 Ha by about 25%.

THE SPREAD OF INFECTIOUS MYONECROSIS VIRUS (IMNV) IN CARRIERS BIOTA AND WATERS AT SHRIMP POND IN ANYER AND CARITA COASTAL, BANTEN PROVINCE

2024-05-29T17:38:13+08:00

Penelitian ini dilatarbelakangi oleh keberadaan tambak udang di wilayah pesisir Anyer dan Carita tidak sesuai dengan peraturan daerah yang berlaku dan tidak terawasi keberadaannya. Limbah hasil kegiatan tambak udang dapat mencemari perairan sekitar. Limbah tersebut dapat mengandung patogen seperti infectious myonecrosis virus (IMNV) yang berbahaya dan mengancam pembudi daya udang lainnya. Tujuan penelitian ini adalah untuk mengidentifikasi keberadaan infectious myonecrosis virus (IMNV) pada lingkungan perairan dan carrier yang terdapat di sekitar tambak udang di wilayah pesisir Anyer dan Carita. Deteksi IMNV menggunakan sampel kelomang, teritip, dan air dengan metode Real-time quantitative Reverse Transcriptase-PCR (qRT-PCR). Hasil qRT-PCR menunjukkan 6 sampel terdeteksi IMNV yang tersebar di 4 lokasi dengan nilai Ct 36,97 (stasiun 1.1), 35,95 (stasiun 5.1), 35,59 (stasiun 5.2), 35,05 (stasiun 6.1), 35,22 (stasiun 6.2), dan 35,54 (stasiun 7.1).

FACTORS AFFECTING THE WORK ALLOCATION OF WOMEN SALTED FISH DRYING IN KAMPUNG MELAYUDISTRICT BENGKULU CITY

2024-06-07T06:58:09+08:00

The role of women has a reasonably high impact in helping their family's economy. All activities often carried out by women have their economic value. This research aims to (1) Analyze the time allocation of women drying salted fish and (2) Analyze the factors that influence the work time allocation of women drying salted fish in Kampung Melayu District, Bengkulu City. This research was conducted in Kampung Melayu District, Bengkulu City, with 55 women drying salted fish selected using census techniques. (non-probability sampling). The descriptive analysis calculates the time allocation of women drying salted fish, including productive, domestic, social, and leisure time. To analyze the factors that influence women's work time allocation, a multiple regression model was used with the independent variables consisting of age, education level, number of family dependents, work experience, husband's acceptance, and the presence of toddlers. The research results show that more time is allocated to women drying salted fish in Sumber Jaya Village for leisure, domestic, productive, and social time. Husband's acceptance and the presence of toddlers influence the work time allocation of women drying salted fish.

THE IMPACT OF GIVING JAKABA MUSHROOM WITH DIFFERENT DOSES IN THE CULTIVATION OF Infusoria sp.: A STUDY OF NITRITE, NITRATE, AND PHOSPHATE LEVELS

2024-06-18T12:25:19+08:00

Seed quality and feed quality are major issues in fish and shrimp farming. Infusoria is a natural microorganism as feed for fish and shrimp larvae, infusoria need a nutrient-rich environment to grow and develop. This study aims to determine the impact of giving Jakaba mushrooms with different doses on the content of important nutrients such as nitrites, nitrates, and phosphates in infusoria cultivation. This research will be carried out at the Integrated Fisheries Laboratory of Bosowa University in February 2024. This study used the quantitative experimental method Complete Randomized Design (RAL) with three treatments and three repeats. Infusoria sp with a density of 1.2 x 105 individuals / liter is maintained in a container with a volume of 1.5 liters filled with water used for fish maintenance. The process of making Jakaba mushrooms is by breeding the finished Jakaba mushrooms into leri water, then fermented for approximately fourteen days. The application of Jakaba mushroom fertilizer is carried out on the seventh day after the Infusoria culture is carried out according to the treatment dose, namely:: treatment A (15 ml/ liter); B (20 ml/ liter and C (25 ml/ liter). The results showed that giving Jakaba mushrooms with a dose of treatment C (25 ml / 1 liter) resulted in nitrite, nitrate levels of 0.334 ppm, 0.632 ppm and 0.334 ppm respectively.

WELFARE OF THE FISHERMEN COMMUNITY OF SOUTH TABULO VILLAGE, MANANGGU DISTRICT, BOALEMO REGENCY, GORONTALO

2024-06-18T12:26:07+08:00

South Tabulo Village is one of the coastal areas of Gorontalo where most of the community are fishermen. This research aimed to determine the level of welfare of fishermen in South Tabulo Village, Mananggu District, Boalemo Regency, using Fisherman Exchange Rates (NTN) and modified Central Statistics Agency (BPS) indicators. The research was carried out from July to September 2022. Structured interviews were conducted with 46 respondents. The data obtained was analyzed quantitatively descriptively using two approaches, namely NTN and modification of welfare indicators according to BPS. The results of the research show that based on the NTN analysis, the fishing community in South Tabulo Village, Mananggu District, Boalemo Regency, has a fairly good level of welfare and the potential to save for non-primary needs with a score of 132. Based on the modified BPS welfare indicator, the fishing community is at a medium welfare level with a score of 2.6.

HEDONIC QUALITY OF SEMPRONG CAKE FROM VARIOUS LEVELS OF CATFISH FLOUR ADDITION

2024-06-26T15:08:04+08:00

Diversification of processed fisheries is very important to attract the interest of the Indonesian people who still have low consumption of fish. The addition of catfish meat flour to semprong cake is expected to increase the nutritional value and attract consumer attention. The aim of this research was to determine the level of addition of catfish meat flour to semprong cakes as the product most preferred by panelists based on hedonic quality which includes aspects of appearance, aroma, texture and taste. This research used an experimental method with four treatments adding catfish meat flour at 0%, 12.5%, 15% and 17.5%. Data analysis using tests friedman, multiple comparison and Bayes. The results of the research showed that the level of addition of catfish meat flour of 15% was the most preferred addition in terms of appearance with a mean value of 8.7 (like), aroma 7.7 (like), and taste 7 (like), while the addition was 12%. was the most liked addition in terms of texture with a mean value of 7.2 (like). It was concluded that the addition of 15% was the most preferred treatment in terms of appearance, aroma and taste and the addition of 12.5% was the most preferred treatment in terms of texture.

ANALYSIS OF THE QUALITY CONTENT OF TRADITIONAL NYALE PROCESSING (Eunice siciliensis) IN WANUKAKA DISTRICT, WEST SUMBA REGENCY

2024-06-26T15:08:35+08:00

Nyale processing is a typical preparation of the people of Wanukaka District. The process of processing nyale is simple or still traditional, namely by cleaning sea worms obtained from Wanukaka waters and putting them in a clean container (clear jar), then mixing them with salt, basil leaves, squeezed orange juice. Nyale that has been homogenized with additional ingredients is stored at room temperature for the fermentation process. The aim of this research is to determine the organoleptic content, namely color, aroma and taste. The research results have an average value for aroma, namely 2.77 (like), taste with a value of 2.20 (dislike), color with a value of 2.53 (like), so it can be accepted by the majority of panelists. The proximate content is ash content, water content, fat content, protein content, carbohydrate content. The results of the research show that Nyale which is processed traditionally has a water content of 18.37%, ash content of 32.05%, protein content of 8.63%, fat content of 39.01%, carbohydrate content of 1.95%.

LEVEL OF PREFERENCE KATTE TONG COOKIES WITH ADDITION PANGASIUS CATFISH MEAT FLOUR

2024-06-26T15:07:33+08:00

Pangasius catfish has the potential to be processed into flour because it has a high protein content in its meat. Food processing with the addition of pangasius catfish meat flour has not been widely done, so it is necessary to know the right concentration so that it can be accepted by consumers. This study aims to determine the level of addition of pangasius catfish meat flour concentration that is most preferred by consumers in katte tong cookies products. The method used is an experimental method with four treatments, namely 0%, 7.5%, 10%, and 12.5%. The results showed that the addition of pangasius catfish meat flour influenced the organoleptic test. The addition of 10% pangasius catfish meat flour is the best treatment for katte tong cookies with an appearance value of 7.4, aroma 7.0, texture 7.5, and taste 7.5.

MACROZOOBENTHOS ABUNDANCE IN THE MANGROVE AREA OF TANAH MERAH SAMBOJA KUTAI KARTANEGARA EAST KALIMANTAN

2024-07-11T13:36:42+08:00

Tanah Merah Beach is a coastal area of Samboja in East Kalimantan, which is a local tourist destination. The association of coastal ecosystems can be shown by macrozoobenthos, as one of the biota components in coastal areas to mangroves. This study identifies the species, calculates the abundance, and analyses the ecological index of macrozoobenthos, as well as looking at the relationship between nutrients and sediment texture with the number of macrozoobenthos found. The purpose of this research is to determine the condition of nutrients in the sediment substrate to its abundance in the mangrove ecosystem area. Sampling was conducted at three points based on the percentage of mangrove canopy cover in the Monmang version 2.0 application, with each point represented by 3 quadrant points measuring 0.25 m². The results showed that the percentage of mangrove canopy cover was categorised as slight-moderate, the abundance of individuals was dominated by the Gastropoda class with 9 species and a small proportion of the Bivalve class. The ecological indices in order are the Diversity Index (H') in the low category, Diversity (E) in the low category, and dominance (C) found Cerithidae sp species dominating each point. The highest abundance was found at radius 2 canopy cover 77.24 - 83.13%. Nutrient content in sediment, nitrate (1.00-16.25 mg/L), phosphate (29.01-83.94 mg/L), organic carbon (2.23-3.24%) with confirmed sediment texture of sandy loam. Nitrate content ranged from 1.00-16.25 mg/L, Phosphate 34.65 - 44.51 mg/L and Organic carbon 2.23-3.24% (per mg) in the sediment and a significant effect of phosphate content on Macrozoobenthos abundance was found in the correlation test results.

ANALYSING THE POTENTIAL OF CORAL REEF ECOSYSTEMS FOLLOWING THE COVID-19 PANDEMIC IN BONDALEM, BULELENG, BALI

2024-07-11T14:10:24+08:00

Coastal and marine areas have considerable biological resource potential, because they are supported by three main ecosystems, namely mangrove ecosystems, seagrass beds and coral reefs. Coral reefs are one of the coastal ecosystems that contribute greatly to coastal areas. But behind the great potential, it is also very vulnerable to damage, both caused by nature and human activities on land and in sea waters. As an effort to maintain the existence of these ecosystems, ecosystem monitoring is needed to find out how much potential is still available in the coastal area. The purpose of this study was to determine and provide information related to the potential and condition of coral reefs in Bondalem Village. This research used descriptive quantitative method with purposive sampling technique. The data taken is primary data that includes observations of coral reefs based on the form of growth (lifeform). Coral reef data collection was carried out using the UPT (Underwater Photo Transect, Underwater Photo Transect) method. The results obtained, coral reefs at the observation station have a total of 18 lifeforms. The percentage of coral cover obtained at a depth of 3 meters has a coral cover ranging from 35.34%, while at a depth of 10 meters the result of coral cover is 26.30% (medium category). The coral reef ecosystem uniformity index ranges from 0.96 - 0.97 (high). The diversity index of coral reef ecosystems in Bondalem Village ranged from 1.25 which is included in the relatively medium category (1<H'<3). The dominance index of coral reef ecosystem in Bondalem Village ranged from 0.064 - 0.066 (low).

POTENTIAL TYPES OF CRICKET BAIT (Acheta domesticus) ON FISH CATCH RESULTS USING FISHING RODS IN THE SWAMP WATERS OF KAMPUNG WASUR

2024-07-11T14:15:06+08:00

The dynamics of swamp waters are developing very rapidly in terms of fulfilling the economic needs of the community to support prosperity. Fishing activities are one aspect of realizing these needs. Therefore, this research aims to find alternative fish bait in the swamp of Wasur Village, Merauke Regency, South Papua. Crickets (Acheta domesticus) were chosen as an alternative bait because they are still related to traditional bait, namely kroto. This research was conducted for three months (July-September 2023) using quantitative descriptive methods. The fishing technique used is using a fishing rod as is often used by the local community so that it is easy to adopt later. The research results showed that the two most dominant fish species caught were Climbing perch (Anabas testudineus) and Snakehead fish (Channa striata). There were 60 Climbing perch caught, while 42 snakehead fish were caught. Analysis of the relationship between length and weight shows that both fish species have negative allometric growth patterns. This means that the increase in body length of the fish is faster than the increase in weight. Crickets have been proven to be an effective alternative fish bait in the Kampung Wasur swamp.

TOTAL NITROGEN CONTENT IN SEDIMENTS IN THE MANGROVE AND CRAB CONSERVATION AREA OF TARAKAN CITY

2024-07-11T14:24:27+08:00

Nitrogen in sediments is an essential element for plants that play a role in the process of photosynthesis and stimulate growth. This study aims to examine the total Nitrogen (N) content in sediments based on differences in depth in the Mangrove and Crab Conservation Area of Pamusian Village, Tarakan City. The method used in the research is quantitative descriptive method by describing the content of Nitrogen (N) in sediments based on differences in depth at each research station and determining the location of sampling points for sampling using purposive sampling method. Sediment sampling was carried out at 3 station points, namely the Pamusian River flow area, the watchtower area and the area near residential areas. Sediment sample testing was carried out at the Soil Laboratory of the Faculty of Agriculture, Borneo University of Tarakan. The results of this study showed that the Nitrogen (N) content in sediments in the Mangrove and Crab Conservation Area of Pamusian Village at a depth of 10 cm ranged from 0.25 - 0.32%, a depth of 20 cm ranged from 0.19 - 0.24%, and a depth of 30 cm ranged from 0.14 - 0.20%. The highest total nitrogen content is at a depth of 10 cm and the station that has the highest total nitrogen content is station 3.

OPTIMIZATION OF PROBIOTIC EM4 (Effective Microorganism-4) GIVING WITH DIFFERENT CONCENTRATIONS ON THE GROWTH AND SURVIVAL OF BENEFITS OF MAS FISH (Cyprinus carpio)

2024-07-11T14:27:54+08:00

Probiotik EM4 merupakan suplemen eksternal yang sering digunakan dalam dunia perikanan yang mengandung asam laktat bakteri yang berperan positif dalam membantu proses pencernaan ikan. Penelitian ini dilakukan pada bulan Agustus-September 2022. Metode yang digunakan dalam penelitian ini adalah metode eksperimen dengan Rancangan Acak Lengkap (RAL) yang terdiri dari 3 perlakuan dan 3 kali ulangan. Pada penelitian ini penambahan EM4 menggunakan 3 perlakuan yang berbeda yaitu P1 (8 ml/kg), P2 (13 ml/kg), P3 (18 ml/kg). Setiap perlakuan memiliki 3 kali pengulangan. Pakan ditambahkan dengan probiotik, kemudian dimasukkan ke dalam sprayer untuk disemprotkan ke pakan komersial. Pakan yang telah disemprotkan diangin-anginkan selama ± 15 menit. Pengukuran pertumbuhan ikan uji selama pemeliharaan dilakukan setiap tujuh hari sekali. Hasil penelitian menunjukkan bahwa penambahan EM4 pada pakan berpengaruh terhadap performa pertumbuhan ikan mas (Cyprinus carpio), namun tidak berpengaruh mutlak terhadap kelulushidupannya. Dosis terbaik didapatkan pada penambahan EM4 sebanyak 18 ml/kg (P3) yang memberikan pertumbuhan berat mutlak 1,96 g, panjang mutlak 2,90 cm, laju pertumbuhan spesifik 0,06%, konversi pakan 0,89 dan kelangsungan hidup 100%.

Kata kunci: Probiotik, EM4, Pertumbuhan, Kelulushidupan, Optimasi, Ikan Mas (Cyprinus carpio)

EFFECTIVENESS OF SQUID ATTRACTOR MADE FROM FIBER BIOCOMPOSITE (ARENGA PINNATA MERR) IN LEMBEH STRAIT WATERS BITUNG CITY NORTH SULAWESI

2024-07-11T14:47:18+08:00

One effort to increase squid resources in aquatic areas is by installing a squid attractor, which is used as a place for squid to release their eggs. The aim of installing a squid attractor is to create an artificial coral reef, so the construction of a squid attractor should follow the requirements for artificial coral reefs. This artificial coral reef will later become a new ecosystem in a body of water. This research aims to determine the effectiveness of a squid attractor made from palm fiber biocomposite. The research method uses a direct-trial experimental method. Data analysis uses descriptive analysis and analysis of the effectiveness of squid attractors. The research findings indicate that biocomposite attractors made from palm fiber are categorized as effective based on the number of attractors successfully attracting squid eggs. The squid species (Sepia, sp.) adhered their eggs to these attractors. The effectiveness analysis calculations show that the obtained effectiveness rate is 60%. Apart from that, this attractor made from palm fiber biocomposite effectively forms new ecosystems. This is indicated by the significant biofouling growth in the attractor made from palm fiber biocomposite. Apart from that, a fish association is around installing this squid attractor made from palm fiber biocomposite.

ANALYSIS OF NUTRITIONAL COMPOSITION IN ONION STICKS WITH THE ADDITION OF PATIN FISH (PANGASIUS HYPOPHTHALMUS) MEAT FLOUR

2024-07-11T14:51:03+08:00

Increasing catfish production must be accompanied by increasing its utilization. One form of utilization of catfish is to make fish meal because it has wide applications in the food sector. Catfish meat meal can be applied as an additional ingredient in the formulation for making onion sticks. The application of adding catfish meat flour to onion stick products has an impact on the level of liking. The addition of 15% catfish meat flour to the formulation for making onion sticks produces the most preferred product. This research aims to analyze the proximate composition of onion sticks with the addition of 15% catfish meat flour. This experimental method is a non-designed experiment with two treatments with levels of addition of catfish meat meal. Treatment A added 0% catfish meat meal as a control and treatment B added 15% catfish meat meal. The parameters observed were the proximate composition of onion sticks including water content, ash content, fat content, protein content and carbohydrate content. The data obtained was analyzed comparatively descriptively. Based on the research results, it was found that the proximate analysis contained in the treatment of 15% addition of catfish meat flour to onion sticks was a water content of 4.35%; ash content 2.17%; fat content 36.56%; protein content 9.31% and carbohydrate content 47,61%.

THE EFFECT OF BAIT COLOR ON OCTOPUS CATCHES

2024-07-11T14:56:30+08:00

Octopuses have a preference for colors often associated with their natural prey, such as small fish or other marine invertebrates. Bait colors that mimic this natural prey can increase the likelihood of an octopus responding and attacking the bait. Handline fishing is one of the methods used by the fishing community in Pattiro Village to catch octopuses using various bait colors, which allows for further study on the effectiveness of bait color in octopus fishing. This research aims to evaluate the impact of different bait color variations on octopus catch rates using handline fishing, with the goal of supporting the development of octopus fisheries in South Sulawesi. The study utilized an experimental fishing method, conducting octopus fishing operations using a specialized handline with colored bait. Data collection was conducted by observing local fishermen’s octopus fishing activities. Based on the effectiveness of the bait colors used, the total catch for blue bait was approximately 8.706 kg (28%), red bait was 13.980 kg (31%), green bait was 2.790 kg (9%), and brown bait was 5.600 kg (18%). The blue bait had a higher catch rate compared to red, green, and brown bait.

IDENTIFICATION OF FRONT PATTERNS IN THE WATERS AROUND RUMAHTIGA AND GALALA-HATIVE

2024-07-11T15:07:30+08:00

The waters of Ambon Rumahtiga and Galala-Hative Kecil are part of the waters of Ambon Bay which connects Outer Ambon Bay (TAL) and Inner Ambon Bay (TAD). The characteristics of the waters are influenced by the tides and the input of fresh water which flows into the surrounding waters. This research aims to analyze front events both horizontally and vertically based on the distribution of temperature, salinity and water density. The research was conducted in August 2023 at 9 observation stations. Temperature, salinity and density measurements were carried out in-situ using a CTD (CTD type), and analysis of the vertical and horizontal distribution of temperature, salinity and density using ODV software version 5.6.2 and Surfer 12. Front analysis used a quantitative discrete method approach by comparing differences in temperature, salinity and density characteristics. The research results show that a front is formed on the water surface to a depth of 5 m between the water mass moving from TAD (Station 8) with a temperature of 26.16-26.58 ^oC, salinity of 30.98-33.37 Psu and sigma-t of 19.92 -21.64 Kg/m³ and water mass from TAL (Station 5) with a characteristic temperature of 25.97 ^oC, salinity of 33.03-34.22 Psu and sigma-t of 21.47-22.47 Kg/m³. Front events also occur between water masses with temperature characteristics of 26.17-26.32 ^oC, salinity 34.12-34.32 Psu, sigma-t 21.66-22.30 Kg/m³ (Station 6) with water masses with temperature characteristics 26.43-26.41^oC, salinity 33.37-34.22 Psu and sigma-t 21.66-22.42 Kg/m³ (Station 9). Tidal currents and freshwater input that flows from the Wairuhu River are the causes of fronts.

POST-HARVEST HANDLING TECHNIQUES OF PACIFIC OYSTER (CRASSOSTREA GIGAS) FOR SALE AS KARATSUKI IN SAKOSHI BAY, JAPAN. (CASE STUDY OF KOBAYASHI SUISAN, CO.LTD)

2024-07-11T15:13:49+08:00

ANALYSIS OF GENETIC DIVERSITY OF OSPHRONEMIDAE FAMILY FISHES USING THE RAPD-PCR METHOD

2024-07-19T17:55:46+08:00

Currently research on genetic diversity analysis is needed and is important information to maintain its survival. Osphronemidae family fish are fish that are often found in various regions. Generally, fish from this family are ornamental fish which are characterized by having a variety of colors. This requires supporting data to determine the level of relationship between fish in the Osphronemidae family. Therefore, research was carried out on the genetic diversity of fish in the Osphronemidae family using the RAPD-PCR method. The research was carried out using goldfish (MK), Blue gourami (SP), gourami (GM), dumbo ear betta (DE), crowntail betta (ST), wild betta (WB), and halfmoon betta (HM). The stages carried out are sample preparation, isolation, PCR, data analysis. The results showed that the fourth highest level of kinship was between SP3 (Blue gourami), GM1 (gourami), WB19 (wild betta), DE3 (dumbo ear betta), ST10 (crowntail betta), and HM3 (halfmoon betta), namely 0.18 or 18%. Meanwhile, the sample included in the outgroup is MK1 (goldfish) has no relationship with other samples.

EFFECT OF ADDING BIOACTIVE COMPOUNDS FROM BROWN ALGAE (Sargassum sp.) IN FEED ON INTESTINE AND LIVER HISTOLOGY OF SIAM PATIN FISH (Pangasius hypopthalmus) SEEDS

2024-08-05T15:48:51+08:00

Addition of Sargassum sp. into feed as a feed supplement is one effort that can be done to increase fish growth and immunity. This research aims to determine the effect of adding bioactive compounds from Sargassum sp. extract in feed on the health picture of Siamese catfish through structural changes that occur in the intestines and liver. Fish observations were carried out for 40 days. The results obtained regarding the survival rate (SR) value of Siamese catfish seeds show that there is no difference or has the same percentage, namely 100%. The results of observations on the histopathology of intestinal organs analyzed in a comparative descriptive manner showed that Siamese catfish fry were fed with Sargassum sp. extract experienced damage than fish seeds fed without the addition of Sargassum sp. extract (control). The damage that occurs includes leukocyte infiltration (IfL), necrosis (Ne), goblet cell proliferation (Psg), hyperplasia (Hpl), and hemorrhage, with a damage score analyzed using the semiquantitative scoring method, namely 1. Damage to the liver, namely experiencing congestion in the blood vessels.

AVOCADO LEAF AND FRUIT EXTRACT (PERSEA AMERICANA MILL) AS A FEED ADDITIVE FOR NILE TILAPIA (OREOCHROMIS SP.)

2024-08-05T15:55:37+08:00

Nile tilapia (Oreochromis sp.) is one of the freshwater fish highly favored by fish farmers in Indonesia. The use of feed additives in fish diets to accelerate growth and enhance immunity has been widely practiced. Avocado is a natural plant known for its beneficial chemical compounds. This study aims to investigate the potential of avocado fruit and leaf extracts as feed additives for Nile tilapia. The Nile tilapia, with an average weight of 2.0 g/fish, were reared in 21 aquariums at a density of 16 fish/aquarium for 30 days. Avocado leaf and fruit extracts were mixed into the feed before being given to the fish. The study included seven treatments: avocado leaf extract at 5%, 10%, and 20% (DA5, DA10, and DA20), avocado fruit extract at 5%, 10%, and 20% (BA5, BA10, and BA20), and a control group without treatment (C). The final fish weight, weight gain, specific growth rate, and survival rate of Nile tilapia with avocado leaf and fruit extract treatments were higher compared to the control group. Conversely, the condition factor of fish without treatment was higher compared to those with treatments. Avocado fruit extract showed a more beneficial effect compared to avocado leaf extract. The use of higher doses of extracts demonstrated a better positive impact on Nile tilapia. Avocado fruit extract at a dose of 20% showed the best results for application in aquaculture activities.

THE ABUNDANCE OF Chlorella Sp. AND Chlamydomonas Sp.: WATER QUALITY, GROWTH, AND FEED CONVERSION RATIO OF WHITELEG SHRIMP (Litopenaeus Vannamei)

2024-08-05T16:53:52+08:00

Chlorophyceae groups, such as Chlorella sp. and Chlamydomonas sp., are a stable group of phytoplankton with the highest abundance in Litopenaneus vannamei ponds. These two types can be used as determinant factors for water quality, growth, and Feed Conversion Ratio (FCR) in L. vannamei farming. This study aims to determine the correlation of Chlorella sp. and Chlamydomonas sp. on the water quality, growth, and FCR in L. vannamei farming. This study was conducted by survey and identification of plankton, water quality, growth, and FCR. The identified plankton was conducted using Principal Component Analysis (PCA) on water quality, growth, and FCR. The results of the study obtained a total abundance of Chlorella sp. and Chlamydomonas sp. of 91.93%. The water quality was found that most parameters comply with standards for L. vannamei farming activities, except for the parameters phosphate, nitrate, nitrite, Total Organic Matter (TOM), and ammonia. The abundance of Chlorella sp. and Chlamydomonas sp. has a strong correlation with a parameter of water quality in all ponds. The growth rate of Mean Body Weight in ponds is 0.4 – 24.43 grams/shrimp and has a strong correlation with the abundance of Chlorella sp. and Chlamydomonas sp. according to the significance value (p-value) of approximately 0.004 – 0.636. FCR value is 0.3-2.23 and has a strong correlation with the abundance of Chlorella sp. and Chlamydomonas sp. according to the eigenvalue of 1.032-1.670. The eigenvalue of the pond represents approximately 54.364% (pond 1), 55.658% (pond 2), 1.236, and 1.032 (pond 3) of the variable diversity. The results of the study showed that the abundance of Chlorella sp. and Chlamydomonas sp. is an indicator that influences the environment quality, growth, and Feed Conversion Ratio.

CORRELATION OF WATER QUALITY ON THE GROWTH OF LARVAE OF BAWAL BINTANG FISH (TRACHINOTUS BLOCHI) IN THE SEA FISH SEED HALL (BBIL), TIDUNG ISLANDS, SERIBU ISLAN

2024-05-29T16:55:17+08:00

Bintang pomfret is an introduced fish from Taiwan and has quite good prospects in the Asia Pacific region with quite high prices. This Final Practical Work Activity (KPA) aims to carry out a t-test and to determine the effect of water quality on growth, the correlation coefficient (r calculation) is calculated. The water quality parameters observed included temperature, pH and salinity. The t-test results showed that t calculated (0.008) < t table (), this means there was no significant difference between the two growth patterns in length and weight. Meanwhile, the results of the correlation coefficient between water quality and growth show that there is no real influence between the water quality parameters observed on the growth of the pomfret.

SYNTHESIS AND CHARACTERISTICS OF CHITOSAN FROM WASTE FISH SCALES AND CRAB SHELLS PRODUCED IN KUPANG CITY

2024-06-04T15:08:52+08:00

Fish scales are the result of fishing activities that are simply thrown away. Fish scales that are thrown away can become waste which has a negative impact on the environment. Crab shells are a problem that needs to be solved. One use of crab shell waste is processing it into chitosan. The aim of this research is to find out how to make chitosan from waste fish scales and crab shells, calculate the yield and water content, and then the method used to make chitosan from waste fish scales and crab shells including the stages of deproteinization, demineralization, and deacetylation. The differences in chitosan synthesis from waste fish scales and crab shells mainly depend on the extraction time, temperature, and concentration of NaOH and differences in the texture of the waste samples used. The results obtained are chitosan from fish scales and crab shells. Chitosan was obtained from waste fish scales (25.33-29.33%) and chitosan from crab shells (50%). From the research carried out it can be concluded that waste fish scales and crab shells can be converted into chitosan, the FT-IR results of chitosan from fish scales, crab shells, and commercial have different results, crab shell chitosan has better FT-IR results than commercial chitosan and fish scales.

DIVERSITY INDEX OF DRIFT GILLNET CATCHES IN SEI BEROMBANG VILLAGE, PANAI HILIR DISTRICT, LABUHAN BATU REGENCY, NORTH SUMATERA

2024-06-04T15:09:50+08:00

Sei Berombang Village has significant potential natural resources in the fisheries sector. The waters of Sei Berombang Village are estuarine, where river water mixes with seawater. The fishing gear used in the study at Sei Berombang Village was a drift gillnet with a mesh size of 2 inches and a boat size of 3 GT. The research was conducted from January 8 to February 5, 2024, in the waters of Sei Berombang Village. This study aimed to determine the species diversity of fish caught by drift gillnets. The research used survey and observation methods. Data analysis included catch composition, diversity index, evenness index, and dominance index. The results showed that the catch using drift gillnets in the waters of Sei Berombang Village consisted of 15 species. The primary catch by drift gillnets, from highest to lowest, included pomfret with 1,001 individuals (19.81%) and the lowest being mullet with 375 individuals (7.42%). The highest bycatch was sweet shrimp with 714 individuals (14.13%), and the lowest was crab with 36 individuals (0.71%). The highest discard was pufferfish with 120 individuals (2.37%), and the lowest was baji fish with 5 individuals (0.1%), with the total catch weighing 541.5 kg and the total number of catches being 5,053 individuals. The obtained diversity index was 2.39, categorized as moderate; the evenness index was 0.88, categorized as high; and the dominance index was 0.11, categorized as low.

SOAKING FERMENTATION OF RICE WASHING WATER AND SALT ON THE SHELF LIFE OF RED TILA FILETS AT LOW TEMPERATURE STORAGE BASED ON ORGANOLEPTIC CHARACTERISTICS

2024-06-04T15:09:35+08:00

Red tilapia is widely favored by Indonesians due to its resemblance to red snapper in terms of texture and flavor. One of the products made from tilapia is skin-on tilapia fillets, which are known for their high nutritional content, particularly in terms of protein and fat. However, a drawback is that its quality deteriorates rapidly. One approach to minimizing bacterial growth is through the addition of natural preservatives. When salt is added to rice water and allowed to ferment, lactic acid is produced, which possesses antibacterial properties that help slow bacterial growth. This study aims to identify the optimal salt concentration in fermented rice water for extending the shelf life of red tilapia fillets, based on their organoleptic qualities under cold storage conditions (5°-10°C). An experimental method was used, involving four treatments: soaking the tilapia fillets for 30 minutes in fermented rice water with varying salt concentrations (0%, 2%, 3%, 4%) over a 12-day period, with evaluations by five trained panelists. The findings indicated that immersion in fermented rice water influenced the shelf life of red tilapia fillets, as assessed through organoleptic criteria. The fermented solution maintained the aroma, texture, and slime quality until day 9, and preserved the visual appearance until day 10. From these results, it can be concluded that using fermented rice water with a 3% salt concentration is the most effective in preserving the freshness of red tilapia fillets under low-temperature storage (5°C-10°C).

THE INFLUENCE OF OCEANOGRAPHIC FACTORS ON SERO CATCH RESULTS IN KARAMPUANG ISLAND, MAMUJU REGENCY, WEST SULAWESI

2024-06-07T06:59:31+08:00

Sero is a type of fishing gear whose operation is carried out around coastal waters, is permanent, and has the role of trapping fish that have territorial areas around the coast or fish that migrate towards the coast. The oceanographic conditions of a body of water can be used to indicate fishing areas for certain types of fish. This research aims to determine the influence of oceanographic factors (temperature, salinity, currents, and tides) on sero catches on Karampuang Island, Mamuju Regency, West Sulawesi. The research was carried out in June-July 2023 on Karampuang Island, District. Mamuju, West Sulawesi. This method uses a field survey method, namely measuring temperature, salinity, tides, and currents. The results of this study indicate that the influence of oceanographic parameters on the total sero catches yield together with the independent variables (X) does not have a significant impact on the sero catches yield (Y). Individually (partially), the variable with a negative value, the temperature on serocatch but not substantial.

ANALYSIS OF THE IMPLEMENTATION OF GOOD MANUFACTURING PRACTICES (GMP): CASE STUDY IN TWO FISH FREEZING INDUSTRIES IN DENPASAR BALI

2024-06-18T12:24:28+08:00

One of the quality control systems that is crucial to establish for fisheries products is good manufacturing practices (GMP). Nonetheless, a number of fisheries processing sectors, including the seafood freezing sector, continue to have multiple GMP deviations. Therefore, the purpose of this study is to examine how GMP is being applied to two fish freezing companies that process sea bass (Lates calcarifer) and tuna (Thunnus albacares) in Denpasar, Bali. Using the gap analysis approach based on Minister of Industry Regulation Number 75 of 2010 concerning GMP, this research was conducted for three months (January – March 2022). The methods used for gathering data were focus groups discussion (FGD), observations, and interviews with managers, supervisors, and quality control (QC). From the research results, it was found that the implementation of GMP in the two fish freezing industries had met the criteria based on applicable regulations with a conformity percentage of 97.70% (tuna) and 98.39% (sea bass). As for the 18 GMP aspects, there are several deviations that occur in tuna freezing factories (6 aspects) and sea bass (4 aspects). Thus, improvements need to be made to aspects of buildings, sanitation facilities, process supervision, laboratories, employees as well as maintenance and sanitation based on the technical and managerial recommendations provided.

ANALYSIS OF HOOK SIZE ON DEMERSAL FISH CATCHES USING BOTTOM LONGLINE IN THE WATERS OF ACEH ISLAND

2024-06-26T15:08:17+08:00

Demersal fish have an important role in the fishing industry in Indonesia due to their high economic value and important role in aquatic ecosystems. Bottom longline gear is a very effective fishing gear for catching demersal fish. The purpose of this study was to examine the effect of different fishing line sizes on demersal fish catches. This research was conducted from November 2023 to December 2023 in the waters of Aceh Island. The method used was experimental fishing, namely by conducting fishing operations directly in the demersal fishing area. The study showed that the fish catch consisted of five families and sixteen species of demersal fish with a total of 173 fish with an overall weight of 171.2 kg. Catches based on line size showed: line number 5 caught 24 fish weighing 47.1 kg, line number 6 caught 39 fish weighing 59.5 kg, line number 7 caught 50 fish weighing 33 kg, and line number 8 caught 60 fish weighing 31.6 kg. Data analysis tests showed that line size significantly affected the total weight of the catch (F_count = 3.36 > F_table = 2.96), meaning that variations in line sizes 5, 6, 7, and 8 had an effect on catch, with line number 6 providing the heaviest catch compared to other sizes.

ENVIRONMENTAL CONTROL OF LOW SALT MACKEREL PEDA FERMENTATION WITH DIFFERENT LEVELS

2024-06-26T15:08:52+08:00

Peda is one of the fermented products made through a spontaneous fermentation process, namely fermentation without starter bacteria. Environmental control is one of the important stages in peda fermentation because at this stage it requires the growth of fermentation bacteria originating from within the fish body. Salt is used during environmental control because salt can inhibit the growth of spoilage microbes and provide a suitable environment for fermentation microbes. The purpose of this study was to determine the use of appropriate salt levels to control the environment for the growth of fermentation bacteria so that the final product produced has uniform quality and the most favorable organoleptic characteristics. This research was conducted in December 2022 at the Fishery Product Processing Laboratory, Faculty of Fisheries and Marine Science, Padjadjaran University. The method used in this research is an experimental method by controlling the fermentation environment for 7 days consisting of six treatments, namely using salt in levels of 0%, 15%, 20%, 25%, 30%, and 35%, with observations made on day 1 to day 7, organoleptic tests were conducted by 15 semi trained panelists. The results of the organoleptic test were analyzed using non-parametric statistics with the Friedman test, if there is a significant difference then a further test of multiple comparison is carried out and the Bayes test is carried out for decision making. The results showed that the best treatment was the treatment using 20% salt content for 7 days with a pH value of 6.3; moisture content of 61.5%; salt content of 11.79% with a median characteristic value of appearance 5, aroma 7, texture 5, and taste 7 which was the most preferred treatment by panelists.

ANALYSIS OF CATCH PER UNIT EFFORT (CPUE) AND MAXIMUM SUSTAINABLE YIELD (MSY) OF SKIPJACK TUNA (Katsuwonus pelamis) LANDED AT THE PORT OF OCEAN FISHERIES KENDARI

2024-06-26T15:09:03+08:00

Skipjack tuna is one of the large pelagic fish landed at the Kendari Ocean Fisheries Port (PPS Kendari). The objective of this research is to analyze the Catch per Unit Effort (CPUE) and Maximum Sustainable Yield (MSY) of skipjack tuna (Katsuwonus pelamis) landed at PPS Kendari. The study was conducted in November-December 2023 at PPS Kendari. Data obtained from PPS Kendari for the years 2016-2022 include the catch of landed skipjack tuna, types of fishing gear used, and the quantity of catch for each type of gear. The research method employed is the surplus production Scheafer method. Fishing gear used to catch skipjack tuna landed at PPS Kendari includes gillnets, hand lines, pole and line, purse seines, boat seine, lift net, and others. The standard fishing gear used is the pole and line. The analysis of CPUE values for landed skipjack tuna at PPS Kendari tends to fluctuate, with the highest CPUE occurring in 2020 at 3,670 kg/trip and the lowest CPUE occurring in 2018 at 1,578 kg/trip. Based on the MSY analysis, the optimal fishing effort is determined to be 2126 trips per year, with an optimal catch quantity of 6,130,516 kg per year. The utilization of skipjack tuna at PPS Kendari has not reached the level of overfishing. It can be concluded that the fishing effort for skipjack tuna has not exceeded the limits of sustainable stocks in the Banda Sea, allowing for an increase in fishing effort to achieve maximum results while still adhering to the calculated MSY limits.

RECOVERY RATE OF NEW THALLUS IN Kappaphycus alvarezii SEAWEED TAKEN BY FISH IN BONE-BONE BEACH

2024-07-11T13:30:03+08:00

Thallus when eaten by fish will be physically damaged or cut off due to fish bites. Seaweed has the ability to recover from damage. For this reason, research will be conducted on the extent to which seaweed will carry out the recovery rate due to damage to the thallus that is cut off by fish-eaten bites. This study aims to determine the rate of thallus recovery due to being eaten by fish using the Horizontal Net method in the waters of Bone Bone Beach. Seaweed was put into the horizontal net with herbivorous fish (baronang). One week later the thallus was weighed at an initial weight of 50g. For observation of recovery used digital camera microscope magnification 1000x every 2 days sampling. For the growth rate of seaweed samples were weighed using analytical scales every 7 days. Water quality measurements during the study included salinity, temperature, brightness, current velocity, pH, nitrate and phosphate. The growth rate obtained is classified as good but has not reached the best level, a good growth rate is not less than 3%. The recovery rate maintained in the recovery horinet for 20 days during the maintenance period and the emergence of new thallus returns at the age of 15-20 days during maintenance. The results of the correlation between LPS and recovery rates with environmental factors show a strong correlation relationship so that environmental factors affect the rate of recovery of new thallus Kappaphycus alvarezii.

ADDITION OF PATIN FISH (PANGASIUS HYPOPHTHALMUS) FLOUR TO THE PREFERENCE LEVEL OF ONION STICKS

2024-07-11T14:40:23+08:00

Stick is a type of snack that is long and flat with a savory and crunchy taste, made from wheat flour, eggs, salt, margarine, and water. Stick is generally made from main ingredients such as wheat flour, tapioca, and other starch sources with high carbohydrate content but low in other nutrients, thus necessitating the addition or fortification of other energy source nutrients like fat, protein, vitamins, and minerals. The addition of patin fish meat flour to onion stick products will affect the protein content; furthermore, the addition of flour to the product will impact the preference level of the onion stick. The aim of this research is to determine the optimal level of patin fish meat flour addition in the production of onion sticks to create the most preferred product. The method used is experimental, consisting of four treatments of patin fish meat flour addition: 0%, 12.5%, 15%, and 17.5%. The parameters observed in this study include a preference test (hedonic), analyzed using non-parametric statistics with the Friedman test, followed by a multiple comparison test and a Bayes test for decision making, and a proximate test to determine moisture content, ash content, fat content, protein content, and carbohydrate content. The results of the hedonic test indicated that onion sticks with 15% patin fish meat flour addition were the most preferred by the panelists, with preference scores for color at 8.3; aroma at 8; taste at 8; and texture at 7.9. The proximate content for the 15% treatment was 4.35% moisture; 2.17% ash; 36.56% fat; 9.31% protein; and 52.39% carbohydrate.

ANESTHETIC EFFECTIVENESS OF CLOVE OIL (SYZYGIUM AROMATICUM) ON MANFISH (PTEROPHYLLUM SCALARE) JUVENILE HANDLING

2024-07-11T15:04:17+08:00

ANALYSIS OF TECHNICAL AND FINANCIAL ASPECTS OF THE CRAB TRAP FISHERY BUSINESS IN SALEMO ISLAND, NORTH LIUKANG TUPABIRING DISTRICT, PANGKEP REGENCY

2024-08-05T15:50:17+08:00

Crab (Portunus pelagicus) is one of the economically important marine products produced from Indonesian coastal waters. Market demand for crab commodities continues to increase. Crab traps are a fishing tool that is very popular with fishermen for catching crab because this fishing tool is passive, cheap and easy to operate and selective for fish (environmentally friendly). Based on the above, bearing in mind the importance of efforts to improve the standard of living and welfare of fishermen, it is necessary to have a fishing business to make it more profitable and responsible. The aim of this research is to analyze the technical and financial aspects of the crab trap fishing business on Salemo Island in February and April 2018. This research uses a survey research method, with data collected using a questionnaire using a random sampling method for fishermen who operate crab traps. Based on the research results, technical aspects include the fishing ground for crab traps, which has muddy bottom topography. The fishing season in a year is the peak season in May–September, the normal season in March–April and the lean season in October–February. The production of catches by crab trap fishermen on Salemo Island, Pangkep Regency, ranges between 1.01 and 1.95 kg/trip/unit of fishing gear and 264 and 591 kg/year/unit of fishing gear. The average value of the R/C ratio for crab trap businesses is 1.26, so the crab trap business is feasible to develop.

COMPARISON OF INCOME OF PEOPLE CATCH FISH USING LIFTNET IN SIPIN LAKE AND TELUK LAKE JAMBI CITY

2024-08-05T16:09:23+08:00

COMPOSITION SPECIES AND PERCENTAGE OF MACROALGAE COVERAGE IN CORAL REEF ECOSYSTEMS ITS RELATION TO OCEANOGRAPHIC CONDITIONS OF THE WATERS AROUND LAE-LAE AND BARRANGLOMPO ISLANDS

2024-08-05T16:34:53+08:00

This study aimed to determine the differences in types and percentage coverage of macroalgae and analyze the correlation between the percentage coverage of macroalgal types and oceanographic conditions in the coral reef ecosystem of Lae-lae Island and Barranglompo Island. The study was conducted on November 20, 2011. The sampling technique followed a 50-meter long transect line perpendicular to the coastline. The estimation of macroalgal coverage used the method developed by English (1994), using a 1 x 1 meter plot and a 25 x 25 cm grid, with categories for each grid using a ¼, ½, ¾, and 1 unit scale. Two-Way ANOVA was performed to determine differences in macroalgal coverage, and Canonical Correspondence Analysis (CCA) was used to investigate the relationship between macroalgal coverage and oceanographic conditions. Thirteen species of macroalgae were found on Lae-lae Island, consisting of 8 orders, 9 families, 10 genera, and 13 species, with coverage ranging from 18.58%-53.44%. The two-way ANOVA showed no significant difference in macroalgal coverage between the flat, crest, and slope zones at both stations on Lae-lae Island (P > 0.05). On Barranglompo Island, 7 species were found with a relatively similar composition from 4 orders, 4 families, and 4 genera. The macroalgal coverage on Barranglompo Island ranged from 0%-26.77%. The two-way ANOVA showed that the percentage of macroalgal coverage in the flat, crest, and slope zones for both stations was significantly different (P < 0.05). The oceanographic conditions affecting the high percentage of macroalgal coverage on Lae-lae Island were current speed, temperature, TSS, nitrate (NO₃), and on Barranglompo Island were salinity and phosphate (PO₄).

THE USE OF MIXED REBON SHRIMP FLOUR (ACETES SP.) IN COMMERCIAL FEED ON THE COLOUR BRIGHTNESS OF GOLD FISH (CARASSIUS AURATUS)

2024-08-05T16:42:00+08:00

This study aims to investigate the effect of adding shrimp head flour (Acetes sp.) to commercial feed on the color brightness of comet goldfish, as well as to determine the optimal usage level that can achieve the highest brightness level. The research method employed was a complete randomized design (CRD) with four treatments: (A) control 0%, (B) 10%, (C) 20%, and (D) 30% shrimp head flour. The study was conducted over 40 days, with observations made every 10 days using the Toca Color Finder to assess fish color. The results indicate that adding shrimp head flour to commercial feed significantly enhances the brightness of comet goldfish compared to the control, although there was no significant difference observed among treatments with varying levels of shrimp head flour. The highest increase in color brightness

APPLICATION OF GONADOTROPIN HORMONES ON ARTIFICIAL SPAWNING SANGKURIANG CATFISH (Clarias sp.)

2024-08-05T17:01:56+08:00

The demand for catfish increases every year, the production that occurs is not yet able to handle market demand. To meet the demand optimally, artificial spawning is carried out using gonadotropin hormones at different doses. This research aims to determine the right use of dosage in the artificial spawning process of sangkuriang catfish based on fecundity, FR, HR and SR. This research was carried out using 3 doses, namely for treatment P (0.1 ml/kg), Q (0.2 ml/kg) and R (0.3 ml/kg), each treatment was carried out in 3 repetitions. The results showed that the administration of gonadotropins achieved the highest fertility level in in spawning with a gonadotropin dose of 0.3 ml/kg of 62,150 grains. Meanwhile, the lowest fecundity value occurred in spawning with a gonadotropin dose of 0.1 ml/kg of 46,240 grains. The highest FR value was obtained when using a gonadotropin dose of 0.1 ml/kg which resulted in the highest FR value of 98.36% and the lowest FR using a gonadotropin dose of 0.3 ml/kg of 87.85%. The highest HR value was obtained at a dose of 0.1 ml/kg of 94.20%, and the lowest HR value at a dose of 0.2 ml/kg of 68.5%. The highest SR value was obtained at a dose of 0.1 ml/kg at 94.61% and the lowest SR value at a dose of 0.2 ml/kg of 54.39%. Based on the FR value at a dose of 0.1 ml/kg of 98.36%, for the HR value at a dose of 0.1 ml/kg of 94.61%. The results of the observations concluded that the use of gonadotropins with the highest fecundity value was obtained at a dose of 0.3 ml/kg with a total of 62,150 grains. The good dose of FR, HR and SR values for artificial spawning of sangkuriang catfish with gonadotropin hormone were found at a dose of 0.1 ml/kg where the fertilization rate (FR) value is 98.36%, Hatching rate (HR) is 94.2% and survival rate (SR) is 94.61%. The value of FR, HR and SR is influenced by environmental conditions and the care carried out. Because the condition of the larvae is still very vulnerable, the immunity is still weak, rudimentary organs are still in their infancy.

ANALYSIS OF ADOLESCENT FISH CONSUMPTION LEVELS AT VOCATIONAL HIGH SCHOOL LEVEL IN MEJAYAN DISTRICT, MADIUN REGENCY

2024-08-05T17:12:20+08:00

School-age adolescents, especially vocational high school students, need sufficient nutritional intake because their learning system demands physical activity, namely practice. Fish contains quite high protein and fatty acids which affect nutritional status and academic achievement. Adolescent fish consumption in Mejayan District is relatively low. Many factors influence it, such as: parental income, maternal education, taste, perception of fish prices, knowledge about fish, and social media. This study aims to analyze the factors that influence fish consumption. The design of this study is a cross-sectional study with data collection through filling out questionnaires and interviews using the FFQ and 24-hour Food Recall methods. The Adjusted R2 value is 0.438. The results of the hypothesis test show that taste factors, fish prices, and fish knowledge have a significant effect on the level of fish consumption as indicated by the sig. <0.05. Factors that do not have an effect are parental income, maternal education, and social media as indicated by the sig. >0.05.