Jurnal Perikanan Unram

COVER, EDITORIAL BOARDS, TABLE OF CONTENT

2025-05-03T15:32:28+08:00

Fisheries Journal

PROCESSING OF FISHERY WASTE AS AN ALTERNATIVE SOURCE OF GELATIN PRODUCTION

2024-06-26T15:07:19+08:00

The Indonesian industry still relies heavily on gelatin imports from countries such as Brazil, India, China, Thailand, and the United States. Unfortunately, the majority of this imported gelatin is made from pigskin, which is haram for Muslims, the majority of Indonesia's population. The use of fish waste for gelatin production is rooted in the need to maximize the utilization of fishery resources and reduce the environmental impact of fishing industry waste. The fishing industry produces abundant waste, mainly in the form of fish bones, skin and scales. Gelatin is widely used for glue manufacturing, cosmetic products, emulsifiers in the food industry, and pharmaceutical products. Gelatin from fish scales can be used as a formulation ingredient in food products such as syrup thickeners, jelly candy, confectionery, ice cream and noodle chewers.

IDENTIFICATION OF FISH SPECIES IN RIVER WATERS BENGALON, SANGATTA AND SURROUNDING AREAS IN KUTAI DISTRICT EAST KALIMANTAN PROVINCE

2024-07-11T15:05:53+08:00

The waters of the Bengalon River, Sangatta and surrounding areas are affected by community activities as well as coal mining and oil palm plantations. Fish are one of the aquatic biota affected by these activities. The unavailability of river fish species data is a particular concern in evaluating the condition of river waters. The availability of fish species data is considered important for decision-making considerations that will be applied in an area. As a sustainability effort, monitoring, identification and inventory of river fish in the East Kutai Regency area were carried out. This research was conducted in November 2021-May 2022 in Bengalon River, Sangatta and surrounding areas. Fish identification was carried out at the Hydroceanography Laboratory, Faculty of Fisheries and Marine Science, Mulawarman University. Fish data were analyzed descriptively. Based on the research data, rivers in East Kutai district are dominated by the Cyprinidae family. A total of 43 fish species were identified, 10 of which were marine fish species, generally fishes that live around estuaries (brackish water), including species that live in the sea.

Keywords: Cyprinidae, East Kutai, Fish, River

THE EFFECT OF DIFFERENT SALINITY ON THE SURVIVAL OF VANAME SHRIMP (Litopenaeus vannamei) SIZE PL8-12 IN EXPERIMENTAL TANK

2024-10-05T10:15:00+08:00

Vaname shrimp (Litopenaeus vannamei) seed production fluctuates and naturally, seasonal factors are one of the causes. The rainy season causes sea water salinity to tend to decrease, whereas the dry season causes sea water salinity to tend to increase. Physiologically, the dynamics of salinity can influence the survival of vaname shrimp seeds and the process is regulated through osmoregulation, namely the response to regulating osmotic pressure between body fluids and the aquatic environment. This study used an experimental method with Completely Randomized Design (CRD) with 4 salinity treatments and 6 replications. The salinity tested included 27 ppt (treatment A), 29 ppt (treatment B), 31 ppt (treatment C), and 33 ppt (treatment D). The test animals for this study used whiteleg shrimp (Litopenaeus vannamei) size PL8-12 with an average weight of 0.001 g/individual. The stocking density was 15 individuals/liter and the maintenance media was a mixture of seawater and freshwater with a total volume of 3 liters/tank. The results showed that treatment D produced the best effect for the survival of whiteleg shrimp (Litopenaeus vannamei) size PL8-12 of 98.5%. Water quality data obtained from acidity levels of 8.3-8.5, temperatures ranging from 27-28⁰C and dissolved oxygen ranging from 4.4-4.5 ppm.

STUDY OF THE QUALITY OF THE WATER ENVIRONMENT FOR SEAWEED (Eucheuma cottonii) CULTIVATION ON LEMUKUTAN ISLAND, BENGKAYANG REGENCY

2025-01-13T15:37:40+08:00

Bengkayang Regency is one of the potential areas for the development of seaweed cultivation in the waters of Lumukutan Island, seaweed cultivation cages are spread in the waters of Lemukutan Island located in the West Coast area which is very possible for the development of seaweed cultivation of the Euchema cottonii type. This study aims to determine the quality of the aquatic environment for seaweed cultivation, the suitability of water quality for seaweed cultivation Euchema cottonii on Lemukutan Island, Bengkayang Regency. The method used is a survey method consisting of 3 stations. Sampling with a direct measurement stage in the field, sampling was carried out for 3 months as much as 4 times in a period of 10 days, The results of this study The quality of the aquatic environment for seaweed cultivation that is in accordance with the Quality Standards, namely temperature parameters, depth is only found at station one, current speed, salinity, pH and DO, for the suitability of the quality of the aquatic environment of the cages for seaweed cultivation at stations one, two and three criteria are appropriate.

IDENTIFICATION OF PORIFERA USING EDNA IN THE CORALS OF TAKAT, SUMENEP, EAST JAVA

2025-01-13T15:39:19+08:00

Karang Takat is a body of water in Sumenep, Madura which has beauty and various kinds of flora and fauna, one of which is Porifera. Porifera are organisms that have an important role in coral reef ecosystems. Porifera live attached to coral reefs and stick to hard coral, because hard coral is a hard substrate for Porifera to stick to. Habitats with hard substrates will be places where porifera grow well, because only 10% of porifera can live. This research was conducted to provide an accurate and latest method for detecting the presence and diversity of Porifera. The eDNA metabarcoding method is suitable for identifying flora and fauna diversity, such as Porifera, with identification based on DNA residues left in their habitat. DNA species can be detected from species that release mitochondria, mucus, and excretory waste products into the environment. The results of Porifera DNA research in Karang Takat found 10 families, namely the Clionaide family, Niphatidae family, Tethyidae family, Spirastrellidae family, Desmacellida family, Chalinidae family, Microcionidae family, Astroscleridae family, Geodiidae family, and Halisarcidae family. The result was 11 species of Porifera from the same class. Known species are Spheciospongia semilunaris, Amphimedon sp, Tethya irisae, Spirastrella sp, Desmacella cf, Haliclona toxia, Clathria reinwardti, Stromatospongia vermicola, Haliclona amboinensis, Geodia sp., and Halisarca caerulea.

MAPPING OF BENTHIC HABITAT IN BAIR ISLAND USING ALLEN CORAL ATLAS DATA

2025-01-13T16:10:13+08:00

Benthic habitat mapping in Bair Island, Southeast Maluku Regency, Maluku Province is the first step in the management and conservation of marine ecosystems that need to be improved. This study aims to map and calculate the extent of benthic habitat around Bair Island by utilizing Allen Coral Atlas (ACA) data. The methods used include multispectral satellite image analysis by performing atmospheric correction, water column correction and sun glare removal. Benthic habitats mapped included coral reefs, seagrasses, microalgae, dead corals and other substrates such as rocks and sand. The results showed that coral reefs dominated the coastal area of Bair Island with an area reaching 53,9 ha, seagrasses 8,4 ha and microalgae 9,8 ha and area of rubble 8,8 ha followed by the dominance of rocks 118 ha as well as sand 98,8 ha. The utilization of ACA data proved effective in providing accurate spatial information with high resolution, so that it can support ecosystem-based management on Bair Island

THE EFFECT OF DIFFERENCES IN STOCKING DENSITY ON THE GROWTH AND SURVIVAL OF SNAKEHEAD FISH (Channa striata) JUVENILE IN THE BUCKET FISH CULTIVATION METHOD (BUDIKDAMBER).

2025-01-22T21:28:07+08:00

The problem in cultivating snakehead fish in budikdamber media is the most effective stocking density and how the budikdamber system affects the growth and survival of snakehead fish seeds, this study aims to determine the effective stocking density of snakehead fish in the budikdamber method. The method used in this study is the experimental method of Completely Randomized Design (CRD), which consists of three treatments and five replications. The treatments used are (A) stocking density of 50 fish/70 liter (control), (B) stocking density of 60 fish/70 liter, and (C) stocking density of 70 fish/70 liter, which are maintained for 40 days. The test fish used are snakehead fish with a length of 6-8 cm and a weight of 3-4 g. The container used is a plastic bucket with a volume of 80 liters with the water volume of 70 liters where the snakehead fish are placed with a stocking density according to the treatment. The amount of feed given is 5% of the fish biomass. The results obtained during the study showed that treatment C with a density of 70 fish/70 liters produced the highest absolute length growth of 2,56±0,5 cm, the highest absolute weight growth of 4,55±0,99 gram, the highest specific growth rate of 2,08±0,09 %, and survival of 94±0,05%

CORAL REEF CULTIVATION AT PT. SRI KANDI AQUARIUM, BANYUWANGI: ANALYSIS OF STAGES AND RESULTS OF TRANSPLANTATION of Acropora formosa, Acropora granulosa, and Euphyllia glabrescens

2025-02-22T19:38:09+08:00

Indonesia is a region known for its abundant natural resources, such as coral reefs. Coral reef ecosystems in Indonesia have begun to decrease, it was recorded that 35.15% of coral reefs in Indonesia entered into poor status or declared damaged. This is due to several factors such as damage caused by the illegal trade of coral reefs carried out by unscrupulous entrepreneurs because of the illegal trade of coral reefs, knowledge and skills are needed regarding transplantation methods in the cultivation of A. formosa, A. granulosa and E. glabrescens to find out the stages and results of transplantation methods in coral reef cultivation. This study was conducted at PT Sri Kandi Aquarium, Banyuwangi Regency, East Java on June 24, 2024 until August 24, 2024. The primary data collection methods used include observation and active participation, while for secondary data using literature studies. The transplantation process in coral reef cultivation consists of several activities, namely the preparation of transplantation tools and materials, making transplantation media, cutting parent fragments, transplantation, maintenance and harvesting. The results of transplantation are then classified based on sizes S, M, L and XL. Thus the transplantation method can be carried out in coral reef cultivation which consists of several stages including preparation of transplantation tools and materials, making transplantation media, cutting coral fragments, attaching the results of cutting fragments to the substrate, sowing corals on the transplantation table under the sea and periodic monitoring and maintenance of corals. The transplantation results obtained will be categorized based on size, namely S, M, L and XL.

PHYSICOCHEMICAL CHARACTERIZATION OF PEDADA FRUIT (Sonneratia caseolaris) SLICE JAM WITH THE ADDITION OF CARAGEENAN

2024-10-05T10:28:04+08:00

This study aims to evaluate the effect of carrageenan addition on the physicochemical properties of fruit slice jam made from Sonneratia caseolaris. This mangrove fruit contains 0.32% pectin, making it a potential raw material for jam production. However, conventional jam has limitations in practicality, leading to the development of fruit slice jam, which has a compact, non-sticky, and plastic-like texture. The study employed a Completely Randomized Design (CRD) with four treatments: P0 (control, 2% pectin), P1 (1.25% carrageenan), P2 (1.50% carrageenan), and P3 (1.75% carrageenan), each replicated five times. The physical parameters analyzed included hardness, cohesiveness, adhesiveness, and springiness, while the chemical parameters consisted of moisture content, ash content, reducing sugar, and pH. Data were analyzed using one-way ANOVA at a 95% confidence level, followed by Duncan's Multiple Range Test (DMRT). The results indicated that increasing carrageenan concentration significantly (P<0.05) decreased adhesiveness, springiness, and moisture content, while hardness, cohesiveness, ash content, reducing sugar, and pH increased. Thus, carrageenan addition significantly influences the physicochemical properties of fruit slice jam made from S. caseolaris, offering a promising innovation for fruit-based jam products

LEVEL OF UTILIZATION AND EFFORTS TO MANAGE MALE MACKEREL (Rastrelliger kanagurta) RESOURCES IN THE WATERS OF BANTEN BAY

2025-01-13T15:38:27+08:00

Tangkapan utama nelayan di Teluk Banten dengan nilai komersial yang tinggi salah satunya adalah ikan kembung laki-laki (Rastrelliger kanagurta). Penurunan populasi terjadi pada ikan kembung lelaki dari tahun ke tahun karena eksploitasi yang intensif. Penelitian ini bertujuan untuk mengkaji bebrapa aspek yaitu biologi, reproduksi perikanan, perikanan tangkap, dan upaya pengelolaan berdasarkan status pemanfaatan R. kanagurta di Teluk Banten. Penelitian dilaksanakan pada bulan Juli – Oktober 2023 di 4 TPI yaitu, TPI Lontar, PPN Karangantu, TPI Teratai, TPI Wadas Bojonegara. Jenis penelitian yang dilakukan adalah penelitian survey dan bersifat kuantitatif. Hasil penelitian pada aspek biologi menunjukan pola pertumbuhan alometrik negatif dengan sex ratio 1:1,14 serta nilai TKG pada TKG III dan TKG IV, dengan nilai Lc > Lm. Pada aspek perikanan tangkap, alat tangkap yang dominan berupa trammel net, bagan perahu, dan pancing ulur dengan trend menurun pada CPUE terhadap effort. Nilai MSY berada pada 451 ton serta JTB pada 361 ton. Sehingga upaya pengelolaan yang dapat dilakukan untuk menjaga kelestarian sumberdaya ikan kembung lelaki adalah dengan melakukan pembatasan penangkapan hingga mencapai upaya optimum, penutupan musim dan daerah penangkapan, pembatasan tangkapan pada ukuran ikan terkecil, pengaturan ukuran mata jaring, dan yang paling utama pengawasan yang memadai serta sosialisasi kepada nelayan terkait pengelolaan yang berkelanjutan.

MARINE DEBRIS AT INDRAMAYU TOURISM BEACH, WEST JAVA: DENSITY AND COMPOSITION

2025-01-22T21:14:47+08:00

Marine debris is a solid material that is intentionally or unintentionally left in the waters and can directly threaten the condition and productivity of water areas. Tirta Ayu Beach and Balongan Beach are tourist destinations that are threatened by marine debris. The presence of tourists on the beach is very beneficial for increasing regional and community income, but it can also result in an increase in the generation of waste generated so that a lot of this waste accumulates and is distributed to various places and has a negative impact on the waters. This study aims to determine the species composition, weight, density, and distribution of marine debris at Tirta Ayu Beach and Balongan Beach. Sampling was conducted at 8 research stations, then classified and analyzed based on UNEP and KLHK provisions. The results showed that the types of marine debris found on Tirta Ayu Beach and Balongan Beach included plastic, plastic foam, rubber, paper and cardboard, wood, glass, cloth, and other materials. Plastic is a type of marine debris dominating Balongan Beach (89%) and Tirta Ayu Beach (81%). The highest density value of marine debris based on quantity and weight was found on Tirta Ayu Beach with a value of (5.0 ± 1.9 items/m²) and a weight of 25.8 ± 16.3 gram/m².

ANALYSIS OF THE COMPETITIVENESS OF INDONESIAN TUNA AND SHRIMP EXPORTS IN THE UNITED STATES MARKET

2025-01-22T21:14:59+08:00

Indonesia is exporting less prawns and tuna to the United States in 2021–2023. An analytical investigation on the competitiveness of Indonesian prawn and tuna products supplied to destination nations like the USA is required in light of these facts. The objective of this study is to examine the growth of Indonesian prawn and tuna exports to the US as well as their competitiveness in this market. This study examines Indonesian prawn and tuna commodities' export competitiveness in the US market from 2012 to 2022. Pustaka, UN Comtrade, Trademap, the Central Statistics Agency (BPS), and the Ministry of Maritime Affairs and Fisheries of the Republic of Indonesia (KKP RI) are the sources of the data. The Constant Market Share (CMS) and Revealed Comparative Advantage (RCA) approaches are the analytical techniques employed in this study. The results show that the trend of leading export commodities, one of which is still dominated by shrimp. Shrimp is the main commodity with export volume increasing significantly from 197.4 million (kg) in 2018 to 250.7 million (kg) in 2021 but experiencing a decline in 2022. The trade value of American shrimp, shrimp consists of large shrimp cold air (0306.16) and tiger prawns (0306.17). The trade value of American tuna, tuna consists of fresh tuna, frozen tuna and tuna fillet. Fresh tuna consists of yellowfin tuna (0302.32) and 0302.34 bigeye tuna. Frozen tuna consists of longfin tuna/albacore (0303.41), yellowfin tuna (0303.42), skipjack tuna (0303.43) and southern bluefin tuna (0303.46); Tuna fillet consists of skipjack tuna (0304.87). The competitiveness of tuna and shrimp in the United States has strong competitiveness.

CATCH RESULTS PER EFFORT (CPUE) AND MAXIMUM SUSTAINABILITY YIELD (MSY) ANALIZYS OF SELAR FISH (SELAROIDES SPP.) AT THE DONGGALA REGENCY WATERS

2025-01-22T21:15:47+08:00

The potential of Selar Fish (Selaroides spp.) caught by fishermen in the waters of Donggala Regency requires in-depth study to support sustainable management and ensure its sustainability in the future. This research aims to analyze catch per unit effort (CPUE) as well as the maximum sustainable potential of trevally (Selaroides spp.) in the region. The research location covers three administrative areas, namely Labean Village (Balaesang District), Ogoamas Village (North Sojol District), and Labuan Bajo Village (Banawa District). The research results show that the average trevally production during the 2017-2023 period reached 5,019.06 tons per year, with an average fishing effort of 2,479.66 trips per year. The average catch per attempt (CPUE) was recorded at 2,394.92 tons/trip. Based on analysis using the Schaefer model, the maximum sustainable potential (hMSY) is obtained with a maximum biological production of 6,238 tons per year. Maximum economic profit is achieved at a hMEY production level of 6,152 tons per year, while the equilibrium condition for fisheries in open access (hOAY) occurs at a production level of 2,579 tons per year. In terms of fishing effort, the biologically optimum number of efforts (EMSY) is 3,175 trips per year, economically (EMEY) it is 2,803 trips per year, while in open access conditions (EOAY) it reaches 5,606 trips per year. This data indicates that MEY-based management is more advisable to maximize economic benefits while maintaining the sustainability of trevally resources. These findings can be a basis for policy makers in establishing sustainable fisheries management strategies in the waters of Donggala Regency

FISHERMAN RESOURCE MANAGEMENT STRATEGY FOR ECONOMIC RECOVERY POST EARTHQUAKE AND TSUNAMI IN DONGGALA DISTRICT,CENTRAL SULAWESI PROVINCE

2025-01-22T21:27:56+08:00

The condition of fisheries production in Donggala Regency experienced a significant decline due to the earthquake and tsunami in 2018. After the disaster, the government made various rehabilitation efforts to restore the local economy. The aim of this research is to determine the government and fishermen's strategies in increasing income after the earthquake and tsunami disaster. The method used is qualitative descriptive data analysis. The results of the study show that before the earthquake and tsunami, coastal fishing communities relied entirely on fishing activities at sea to meet their living needs. The average income of fishermen respondents affected by the earthquake and tsunami reached IDR 10,383,775. This figure was obtained from the average receipt of IDR 168,404,125 after deducting the average total costs recorded at IDR 158,020,350. The government's strategy to increase fishermen's income after the earthquake and tsunami includes providing assistance to fishermen, empowering and training fishermen, developing fisheries cultivation, improving infrastructure, increasing market access, and collaborating with international organizations and non-governmental organizations. In addition, the government also focuses on restoring the local economy through micro, small, and medium enterprises (MSMEs) as well as community empowerment and restoring coastal ecosystems. On the other hand, fishermen still choose to focus on fishing efforts as a strategy to increase their income after the disaster

THE EFFECT OF LONG STORAGE ON MANGROVE (Sonneratia caseolarisi) FRUIT SLICE JAM ON TOTAL PLATE COUNT (TPC) VALUE AND ANTIOXIDANT ACTIVITY

2025-02-22T19:19:41+08:00

The mangrove apple (Sonneratia caseolarisi) has potential as an alternative food source due to its high nutritional and antioxidant content. This study aims to analyze the effect of storage duration on mangrove apple-based fruit slices' microbiological and chemical quality by adding rosella extract, focusing on Total Plate Count (TPC) value, antioxidant activity, and proximate analysis. The slices were made by adding 50% rosella extract based on the weight of the fruit pulp and were tested during storage at 0, 7, 14, 21, and 28 days. The research methods included TPC testing to count microorganisms, antioxidant activity testing using the DPPH method, and proximate analysis to determine moisture, fat, protein, ash, and carbohydrate content. The results showed that TPC values increased significantly with longer storage time, with the highest increase in the fourth week. Antioxidant activity also decreased over time, indicating the degradation of antioxidant compounds due to oxidation. Proximate testing revealed increased moisture and fat content, while protein, ash, and carbohydrate levels decreased as storage duration increased.

EXPLORATION OF THE BIOACTIVE POTENTIAL OF RHIZOPHORACEAE MANGROVE PLANTS: IMPLICATIONS IN THE FIELD OF FISHERIES

2025-02-22T19:22:36+08:00

Mangrove forests, as coastal ecosystems rich in biodiversity, play an important role in ecology and the fisheries sector. Mangroves not only function as coastal protectors and habitats for aquatic organisms but also produce bioactive compounds that have potential as antibacterial, antioxidant, antifungal, and antiviral agents. Research on mangrove plants from the Rhizophoraceae family, such as Bruguiera, Kandelia, Ceriops, and Rhizophora, has shown that compounds like flavonoids, tannins, alkaloids, and saponins have significant biological activities. Flavonoids act as antimicrobials, while tannins inhibit bacterial growth by precipitating proteins. Alkaloids disrupt bacterial cell walls and have potential in combating cancer cells. Studies also reveal significant antioxidant activity, with some mangrove extracts showing great potential in combating free radicals. Moreover, these compounds offer potential in reducing reliance on synthetic antibiotics for the treatment of cultured fish diseases and provide opportunities for the development of natural-based health products. This review aims to integrate recent findings on the bioactivity of mangrove plants and propose innovative applications of bioactive compounds in fisheries and conservation with a focus on ecosystem sustainability and optimal use of natural resources.

THE EFFECT OF SUBSTITUTION OF FISH MEAL WITH FRESH BLACK SOLDIER FLY LARVAE IN FEED OF TILAPIA (Oreochromis sp.)

2025-02-22T19:22:45+08:00

The high price of feed is caused by the high price of fish meal as a raw material for protein-source of feed. Black Soldier Fly (BSF) larvae have good nutrient content, so they can be used as an alternative raw material for feed. This research aims to determine the effect of fish meal substitution with fresh BSF larvae on the growth performance of tilapia (Oreochromis sp.). The research was designed using a completely randomized design with four treatments in the form of fishmeal substitution with BSF larvae and triplicates, including P1 (0%), P2 (25%), P3 (50%), and P4 (75%). The average weight of individual fish used was 17,98±1,49 g with a stocking density of 20 fish tank^-1 and kept for 60 days in fiber tanks measuring 50x50x60 cm³. Feed is given as much as 3% of the fish biomass with a frequency of giving twice per day at 08.00 am and 15.00 pm. The data were analyzed using analysis of variance with a significance level of 95%. If there is a significant difference, further testing is carried out using Duncan's Multiple Range Test. Water quality data were analyzed descriptively. The research results proved that fresh BSF larvae could replace fish meal by 75% (P<0,05). Substitution of fish meal with fresh BSF larvae as much as 75% resulted in absolute growth rate based on length of 6,16±0,38 cm, absolute growth based on weight of 53,41±10,40 g, specific growth rate based on length of 0,10±0,01 % day^-1, weight-based specific growth rate of 0,89±0,17% day^-1, feed conversion ratio of 1,13±0,14 and feed efficiency of 89,71±10,81%.

COMPARATIVE ANALYSIS OF WATER COLUMN TEMPERATURE USING SEISMIC INVERSION AND WORLD OCEAN ATLAS (WOA) METHODS IN WAIPOGA WATERS, PAPUA

2025-02-22T19:23:05+08:00

Seismic oceanography is a combination of two sciences: seismic and oceanography. It is used to study phenomena in the water column, one of which is temperature measurement in the water column. This study aims to analyze the differences in water column temperature measurements using the seismic inversion method and measurements using data from the World Ocean Atlas (WOA). The data processing is divided into three stages: seismic data processing using ProMAX 2D software, synthetic seismogram processing using Hampson-Russell Software, and temperature distribution processing using Ocean Data View and Matlab software. The accuracy of the inversion-derived temperature was tested against observational data using the mean absolute error (MAE) criterion. The results of the temperature difference analysis show that the temperatures obtained from WOA data measurements are lower than those obtained using the seismic inversion method. The temperatures measured using WOA data range from 27.5–29.4 °C, while the inversion method ranges from 30.8–29.3 °C. Verification results indicate fairly good accuracy, with the MAE between WOA and seismic inversion ranging from 1.9–3.4 °C.

THE USE OF RICE WASHING WATER FERMENTATION SOLUTION AND VINEGAR ON THE SHELF LIFE OF RED TILE FILET BASED ON THE NUMBER OF MICROBES IN LOW TEMPERATURE STORAGE

2025-02-22T19:39:56+08:00

Tilapia fillets are very susceptible to quality degradation. Therefore, efforts need to be made to maintain the quality of tilapia fillets with preservation methods using natural materials such as rice washing water waste. Rice washing water added with vinegar can grow lactic acid bacteria (LAB) through a fermentation process where LAB can fight spoilage bacteria in processed fishery products. The purpose of this study was to determine the use of optimal vinegar concentration in rice washing water fermentation solution to extend the shelf life of tilapia fillets based on the number of bacteria and pH during low temperature storage. The research method used in this study is a descriptive method. The treatment used was the addition of 0%, 0.5%, 1%, 1.5%, 2% vinegar solution and stored at low temperatures (5°-10). The parameters measured included the number of bacterial colonies and the degree of acidity (pH). Concentration 0% observations were made on days 1, 3, 6, 7, 8, 9 while for concentrations of 0.5%, 1%, 1.5%, 2% observations were made on days 1, 4, 7, 8, 9, 10, 11, and 12. The results showed that the fermentation solution of rice washing water with the addition of 1% vinegar concentration was the best for extending shelf life. The treatment of 1% vinegar concentration can maintain the quality of red tilapia fillets until the 11th day with a total of 5.6×107 bacteria and a pH value of 6.70.

RESPONSE OF STOCKING DENSITY DIFFERENCES TO KIDNEY HISTOLOGY ANALYSIS OF RED TILAPIA (Oreochromis sp.) IN THE BUDIKDAMBER SYSTEM

2025-02-22T19:40:31+08:00

Optimalisasi budidaya ikan dengan kepadatan tinggi bersamaan dengan peningkatan pemberian pakan akan menyebabkan penumpukan bahan organik. Penumpukan bahan organik ini seperti sisa pakan dan feses akan memperburuk kondisi pemeliharaan, yang pada akhirnya memengaruhi kelangsungan hidup dan pertumbuhan ikan. Kondisi fisiologis ikan akibat lingkungan yang tidak sesuai akan menyebabkan terjadinya perubahan kondisi histologis pada jaringan dan organ yang berperan dalam metabolisme ikan tersebut. Tujuan penelitian ini adalah menganalisis respon perbedaan padat tebar terhadap analisis histologis ginjal ikan nila merah (Oreochromis sp) yang dipelihara menggunakan sistem budikdamber. Penelitian dilakukan selama 28 hari di laboratorium reproduksi dan hidrobiologi Universitas Brawijaya. Pada penelitian ini menggunakan rancangan acak lengkap faktorial dengan perlakuan kepadatan (A (2 ekor/10L), B (4 ekor/10L), C (6 ekor/10L), D (8 ekor/10L) dan sistem (budikdamber dengan kangkung (a) dan tanpa kangkung (b)). Beberapa kerusakan organ ginjal yaitu kongesti, edema dan nekrosis. Perlakuan terbaik adalah Ab (2 ekor/10L tanpa kangkung) yaitu dengan nilai kerusakan paling sedikit.

STUDY ON THE UTILIZATION OF NUSANTARA FISHERY PORT (PPN) KEJAWANAN CIREBON

2025-02-22T19:41:09+08:00

The Nusantara Fisheries Port (PPN) Kejawanan in Cirebon City is an important infrastructure that supports the fisheries sector in the northern coastal region of West Java. As a distribution center for fish catches and a driver of the capture fisheries economy, this port is regulated by various regulations, including Law Number 45 of 2009 and Regulation of the Minister of Marine Affairs and Fisheries Number 8 of 2012, which requires the existence of basic, functional, and supporting facilities. This study aims to evaluate the level of facility utilization in PPN Kejawanan using a descriptive method by collecting primary data through observation and interviews, as well as secondary data from port managers. The results of the study show that the PPN Kejawanan has fulfilled 19 of the 22 required facilities, or around 86%, with most of the facilities functioning optimally. However, there are several facilities that are not yet available, such as jetty piers and fishermen's guesthouses. These results indicate the need to increase the utilization of facilities to ensure better port services and support the economic growth of the fisheries sector in PPN Kejawanan.

CHLOROPHYLL-A VARIABILITY IN RELATION TO LEMURU FISH (Sardinella lemuru) CATCHING SEASON IN THE BALI STRAIT

2025-02-25T19:24:23+08:00

Lemuru fish (Sardinella lemuru) is one of the main commodities in the waters of the Bali Strait. As a dynamic water environment, oceanographic conditions in the Bali Strait affect the high and low production of lemuru fish. Upwelling influences the presence of lemuru fish at various times of the year, causing changes in chlorophyll-a concentration. This study aims to evaluate the association between chlorophyll-a levels and the lemuru fishing season in the Bali Strait. The data used are chlorophyll-a image data and lemuru fish catch data spanning nine years (2014–2022). Chlorophyll-a data were visualized both temporally and spatially. Meanwhile, the catch data was transformed into CPUE values. The season index is used to determine the lemuru fishing season. The northwest season has the highest average CPUE (5,219 - 6,244 kg/trip), whereas the southeast season has the lowest CPUE (2700 - 5,590 kg/trip). Chlorophyll-a concentrations are highest in the southeast through the second transition season (1 - 1.5 mg/m3), and lowest in the northwest season (0.2 - 0.3 mg/m). The histogram illustrates that the largest CPUE acquisition occurs when chlorophyll-a concentration is low (<0.2 mg/m3). According to the fishing season index (IMP) of Sardinella lemuru fish, the highest fishing season time is in December (158.49%) and the lowest is in May (49.39%). The fishing season occurs when chlorophyll-a concentrations are low.

UTILIZATION OF CORN AND ITS SUBSTANCES AS A SOURCE OF FISH FEED (ARTICLE REVIEW)

2025-03-14T19:14:50+08:00

Fish farming is highly dependent on the use of feed, which can even account for up to 70% of the total cost of farming. Therefore, the availability of quality feed in sufficient quantities is a key factor in ensuring successful farming. However, feed with high protein content tends to be expensive. The solution to this problem is to use alternative feed raw materials that have good nutritional content, do not compete with human needs, and are easy to obtain. Organic waste from corn harvest residues has great potential because it is easy to obtain and cheap. Corn waste has the problem of low nutritional content, so a fermentation process is needed as an effort to increase its nutritional value. This study aims to examine the extent to which the utilization of fermented corn waste can be used as fish feed to support increased fish growth performance.

ANALYSIS CORELATION BETWEEN TOTAL ORGANIC MATTER (TOM) WITH ABUNDANCE OF VIBRIO SP. BACTERIA IN INTENSIVE CULTIVATION VANNAMEI SHRIMP (Litopenaeus vannamei)

2025-03-14T19:15:22+08:00

Poor water quality conditions in the cultivation media can cause an increase in pathogenic bacteria such as Vibrio sp. which can inhibit shrimp growth. This study was conducted to analyze the relationship between Total Organic Matter (TOM) and the abundance of Vibrio sp. bacteria in shrimp cultivation media. The stages of the study included checking the abundance of bacteria starting from sterilization of tools, media preparation, bacterial inoculation, bacterial calculations and checking TOM using the titration method. The results showed that TOM in the cultivation media increased as the cultivation period progressed. At the beginning of the distribution, the condition of organic matter in the cultivation media showed a low value and the abundance of Vibrio sp. bacteria in the early stages of cultivation was also low. The highest TOM and abundance of Vibrio sp. bacteria occurred in DOC 91 with a total organic matter of 121.68 ppm and a TVC of 7.29 x 103 CFU/ml. while the lowest TOM and abundance of Vibrio sp. bacteria occurred in DOC 1 with a total organic matter of 88.48 ppm and an abundance of 2.5 x 102 Vibrio sp. CFU/ml. The correlation between TOM and the abundance of Vibrio sp. bacteria in the cultivation media shows a positive linear relationship. This study shows that the high content of organic matter in the cultivation media affects the abundance of Vibrio sp. bacteria in the cultivation media. The higher the organic matter in the cultivation media, the abundance of Vibrio sp. bacteria also increases.

DETECTION OF INFECTIOUS MYONECROSIS VIRUS (IMNV) IN LITOPENAEUS VANNAMEI USING NESTED REVERSE TRANSCRIPTION-POLYMERASE CHAIN REACTION (PCR) AT PT. CENTRAL PROTEINA PRIMA SIDOARJO EAST JAVA

2025-03-14T19:15:32+08:00

Increased production and stocking density have elevated the risk of viral diseases, which can lead to significant economic losses. This study aimed to detect the presence of Infectious Myonecrosis Virus (IMNV) in vannamei shrimp using the Nested Reverse Transcription-Polymerase Chain Reaction (nRT-PCR) method. 54 vannamei shrimp samples from various regions in Indonesia were tested to detect the presence of IMNV. The test results showed 2 samples were detected positive for IMNV, namely samples from Central Kalimantan and East Java. The test results were confirmed and reinforced by other supporting factors that influence the spread or occurrence of IMNV disease infection in the sample's region of origin. This study highlights the importance of routine IMNV surveillance using sensitive molecular methods to control disease spread and protect the shrimp aquaculture industry in Indonesia.

EFFECTIVENESS OF PAPAYA JUICE ADDITION (Carica papaya L.) WITH DIFFERENT DOSES ON COLOR BRIGHTNESS LEVELS AND LIFE VERSITY OF KOI FISH (Cyprinus rubrofuscus)

2025-03-14T19:16:05+08:00

Ikan koi (Cyprinus rubrofuscus) merupakan salah satu jenis ikan hias air tawar yang sangat digemari dan digemari oleh masyarakat, ikan ini dikenal dengan keindahan warnanya yang bervariasi, seperti merah, putih, kuning dan hitam. Keindahan warna menjadi salah satu faktor utama yang menentukan harga jual ikan hias di pasaran. Petani ikan hias sering mengalami permasalahan warna pada ikan hias yang kurang menarik. Penambahan sumber karotenoid pada pakan dapat mempengaruhi pembentukan kecerahan warna pada ikan hias. Tujuan penelitian adalah untuk mengetahui pengaruh dan dosis yang tepat dari penambahan sari buah pepaya (Carica papaya L.) pada pakan dengan pemberian dosis yang berbeda terhadap tingkat kecerahan warna dan kelangsungan hidup ikan koi (Cyprinus rubrofuscus). Penelitian ini merupakan penelitian eksperimen dengan percobaan menggunakan RAL yang terdiri dari 5 perlakuan dan diulang sebanyak 3 kali. Perlakuan A (kontrol), perlakuan B (10 ml/kg pakan), perlakuan C (20 ml/kg pakan), perlakuan D (30 ml/kg pakan) dan perlakuan E (40 ml/kg pakan). Hewan uji yang digunakan selama penelitian adalah benih ikan koi ukuran 4-5 cm sebanyak 150 ekor, dengan padat tebar 1 ekor/2 liter air. Pemeliharaan dilakukan selama 30 hari dengan frekuensi pemberian pakan 3 kali sehari sebanyak 5% dari bobot tubuh ikan. Pemberian sari buah pepaya dilakukan dengan cara disemprotkan pada pakan sesuai dosis masing-masing perlakuan. Hasil penelitian menunjukkan bahwa penambahan sari buah pepaya dengan dosis yang berbeda tidak berpengaruh terhadap warna dan kelangsungan hidup ikan koi (Cyprinus rubrofuscus). Nilai kecerahan tertinggi diperoleh pada perlakuan E dengan penambahan sari buah pepaya sebanyak 40 ml/kg pakan.

FORMALIN CONTENT OF PROCESSED FISH PRODUCTS IN JAMBI TRADITIONAL MARKETS USING TEST KIT

2025-03-18T10:26:53+08:00

Fish is a fishery product that has high nutritional value. Fish can be processed into various processed products. Processed fish products generally have the characteristic of not lasting long when stored at room temperature so that in the food processing, additives are added. Hazardous food additives that are often used in processed fish products are formalin. Formalin is a preservative that can cross-link with protein so as to prevent damage to product and can extend its shelf life. This study aims to determine the formalin content in processed fish products, namely fish meatballs and salted fish in traditional markets in Jambi City. The research method used laboratory experiments with 4 treatments and 3 replications. The results showed that the samples of fish meatballs and salted fish as a whole were positive for formalin. This shows that the food safety of processed products in traditional markets in Jambi is still low. The knowledge and awareness of the fisheries processing community about hazardous food additives is still low.

THE INFLUENCE OF MARKETING MIX ON PURCHASING DECISIONS FOR GROUND MACKEREL AT UMKM EVI TENGGIRI

2025-03-18T10:27:25+08:00

Bengkulu City has abundant fishery resources, with total fishery yields reaching 32,757 tons. UMKM play an important role in local economic growth, one of which is Evi Tenggiri UMKM, which focuses on ground fish products. Problems in UMKM, such as the unknown influence of marketing to support the success of UMKM. This study aims to analyze the effect of the 4P marketing mix on purchasing decisions for ground mackerel at Evi Tenggiri UMKM. The research location was chosen purposively. Data was obtained from consumers who had bought ground mackerel, with a total sample of 96 respondents determined using the Lemeshow technique. The analysis was carried out descriptively quantitatively with multiple linear regression to measure the effect of the independent variable on the dependent variable. In addition, classical assumption tests such as normality, multicollinearity, heteroscedasticity, and hypothesis testing were carried out to ensure the validity of the model. The F test results obtained that the product, price, place, and promotion variables simultaneously affect purchasing decisions. The t test results for product and price variables show an influence on purchasing decisions. The t test results for the place and promotion variables have no effect on purchasing decisions.

GROWTH PERFORMANCE OF BLACK NILE FISH (Oreochromis niloticus) WITH A COMBINATION OF COMMERCIAL FEED AND INDEPENDENT FEED AT THE P2MKP FISH BOSTER CENTER, BUNCITAN VILLAGE, SEDATI DISTRICT, SIDOARJO REGENCY, EAST JAVA PROVINCE

2025-03-18T10:27:43+08:00

The fisheries sector supports food security, one of which is through black tilapia cultivation which has many advantages. The study was conducted at the P2MKP Fish Boster Center to assess the effect of using a combination of commercial and independent feed on the growth of black tilapia, to find an alternative feed that is efficient, economical and supports optimal growth. The study was conducted at the P2MKP Fish Boster Center, Sidoarjo, using survey and internship methods. Activities include pond preparation, seed distribution, provision of a combination of commercial and independent feed, and monitoring the growth and health of black tilapia. Data were collected through observation, interviews and documentation and analyzed descriptively quantitatively. The water quality in the black tilapia pond was monitored well with a temperature of 28^oC - 33^oC, pH 8 and DO 4.3 - 4.62 ppm. Growth showed optimal results: SGR 1.29, absolute weight 198.75 grams, absolute length growth 20 cm, Survival Rate 85% and FCR 1.1. Commercial feed is used at the beginning of maintenance, then will be replaced with independent feed for cost efficiency. Research at P2MKP Fish Boster Center shows that a combination of commercial and independent feeds increases the growth of black tilapia better than single use. This combination can also optimize resources, reduce dependence on commercial feeds, and be an alternative for farmers in increasing the productivity of black tilapia cultivation.

IDENTIFICATION OF THE TEMPORAL RELATIONSHIP BETWEEN THERMAL FRONT INTENSITY AND SKIPJACK FISHERIES PRODUCTION LANDED AT PPN TERNATE

2025-03-18T10:28:11+08:00

The convergence of two oceans in Indonesian waters results in complex oceanographic dynamics, including the formation of thermal fronts. Thermal front areas are rich in nutrients, making them valuable for predicting potential fishing grounds. This study aims to identify the relationship between thermal fronts and skipjack tuna fisheries production landed at PPN Ternate, in order to assess whether thermal front data can be used to predict skipjack tuna fishing grounds in the area. The data utilized consists of fisheries production records and sea surface temperature images obtained from the Terra MODIS satellite. The images were processed using the Single Image Edge Detection (SIED) algorithm to map thermal front areas and measure their intensity. The relationship between thermal front intensity and skipjack tuna production was analyzed using Pearson correlation. The results show that thermal front areas are dynamically distributed around PPN Ternate every month, with increased intensity observed in February-March, July-October, and December. However, Pearson correlation analysis indicates no significant relationship between thermal front intensity and skipjack tuna fisheries production.

ESTIMATION OF LEAF-LITTER DECOMPOSITION RATE Avicennia sp. ON THE NUTRIENTS CONTENT IN WONOREJO MANGROVE AREA, SURABAYA

2025-03-14T19:16:16+08:00

The ecosystems of mangrove are one of the unique coastal ecosystems which have ecological and socio-economic functions. Mangroves have a significant role in supporting fisheries resources. Leaf-litter is a nutrient contributor released to the sea water and is functioned by aquatic biota both in the marine and estuary. The method used in this study is purposive random sampling method which refer to the category based on mangrove density. The average production of mangrove litter Avicennia sp, for 30 days at station I was 1.04 g/m²/ day, station II was 1.20 g/m²/day, station III was 0.75 g/m²/day. The leaf-litter decomposition rate at station I, experienced a decomposition process of 65%, at station II at 62.33%, and station III at 69.42%. The content of nitrogen (N) and fosfor (P) nutrients at station I is an average of N 0.74% and P 0.07%, station II is N 0.76% and P 0.05%, station III is N 0.74% and P 0 , 07%. The total amount of nutrients released in the Mangrove Information Center forest area, Wonorejo - Surabaya is nitrogen (N) 443.81 kg/m²/year and phosphor (P) 34.103 kg/m²/year.

PROSPECTS OF HOUSEHOLD SCALE VANAME SHRIMP FARMING BIOFLOC SYSTEM

2025-03-18T10:28:20+08:00

Soropia Village is a coastal area that is topographically potential for developing a biofloc shrimp farming business on a household scale, in addition this system reduces negative environmental impacts. However, it is necessary to study the potential in terms of the amount of costs, production potential and profits that can be obtained, and business feasibility. The research method used was a case study at the Bahari Jaya Group. Primary data was obtained using a survey technique through in-depth interviews regarding the variables needed in the analysis to achieve the research objectives. The results of the study showed that the largest investment cost was for the allocation of making a complete package pond, in the form of a D4 biofloc tarpaulin pond (4 meters in diameter) on a household scale of IDR 3,500,000.00. While the most dominant operational cost is the purchase of feed of IDR 1,800,000, but this amount is considered minimal in the vaname shrimp farming business, because of the biofloc element which is additional feed. The biofloc system vaname shrimp cultivation business on a household scale in 1 cycle maintained for 3 months, the total cost incurred was IDR 8,532,500, - and the production was 170 kg with a selling price of IDR 98,000 / kg, thus obtaining an income of IDR 16,660,000, -. The profit obtained was IDR 8,127,500, - with a business feasibility level of 1.9. This value is classified as feasible so that the biofloc system vaname shrimp cultivation business is very prospective to be implemented and applied on a household scale to improve the welfare of coastal communities.

FACTORS DETERMINING THE DECISIONS FOR PROVIDING PEOPLE'S BUSINESS CREDIT (KUR) FISHERMAN HOUSEHOLDS IN BENGKULU PROVINCE

2025-03-18T10:28:32+08:00

Credit involves a component of trust that an organization or bank places in its customers. One form of credit provision for the public is the People’s Business Credit (KUR). This study focuses on the decision-making process for granting KUR to fishing households in Bengkulu Province. The objective of this research is to provide a descriptive analysis of KUR distribution to fishing households and to identify the factors influencing credit approval decisions. This study was conducted in Bengkulu Province, which was purposively selected due to the broader availability of KUR capital. The research utilizes secondary data, with analytical methods including descriptive statistics and binary logistic regression. The findings indicate that 42 fishermen (21%) received KUR, while 158 fishermen (79%) did not. The factors that significantly influence the probability of receiving KUR are age and bank account ownership. Banks should implement policies that allow alternative requirements to replace collateral, ensuring that fishermen in Bengkulu Province can meet the necessary conditions. This study can serve as a reference for future research, which can be further explored using primary data.

THE INFLUENCE OF MARKETING CAPABILITIES AND DIGITAL MARKETING ON THE MARKETING PERFORMANCE OF MSMEs FISH MILLING IN BENGKULU CITY

2025-03-18T10:28:43+08:00

Bengkulu is a potential area in the capture marine fisheries business, the average yield of capture fisheries in Bengkulu City reaches 83338 tons. The potential for abundant results has a positive impact, namely many MSMEs have sprung up to utilize sea catches, one of which is a fish milling business in Bengkulu City. Changes in the business environment and technological developments, and technological developments require MSMEs to adopt digital technology and conduct digital marketing. By adopting digital technology, it is hoped that it will improve the marketing performance of fish milling MSMEs. This study aims to determine how marketing capabilities, digital marketing, and marketing performance and their effect on marketing performance. The data analysis method was carried out quantitatively and SEM PLS with 40 MSMEs as samples. The results showed that the marketing capabilities, digital marketing, and marketing performance of MSMEs were quite good. In addition, marketing capabilities and digital marketing have an effect on marketing performance.

THE EFFECT OF TEMPERATURE MANIPULATION ON THE GROWTH OF AXOLOTL (Ambystoma mexicanum)

2025-03-18T10:28:52+08:00

Axolotl (Ambystoma mexicanum) merupakan hewan unik yang populasinya sudah terancam punah. Axolotl merupakan yang unik, salah satu keunikannya adalah dapat meregenerasi hampir seluruh bagian tubuhnya. Di Indonesia sendiri masih sedikit sekali yang membudidayakan hewan satu ini. Di Indonesia kegiatan budidaya axolotl banyak menemui hambatan terutama karena faktor lingkungan yang sangat berbeda dengan habitat aslinya. Salah satu kendala utama untuk membudidayakan axolotl adalah suhu. Untuk membuat lingkungan yang sesuai untuk axolotl tumbuh dan berkembang diperlukan bantuan alat. Salah satu alat yang digunakan adalah ultra recirculate chiller system (URCS). Penelitian ini bertujuan untuk mengetahui pengaruh manipulasi suhu yang berbeda terhadap pertumbuhan axolotl. Penelitian ini menggunakan metode eksperimen dengan penggunaan tiga perlakuan suhu yang berbeda (18°C, 22°C dan 26°C). Parameter utama yang diuji adalah tingkat kelulushidupan (SR), laju pertumbuhan spesifik (SGR) dan rasio konversi pakan (FCR). Hasil penelitian menunjukkan suhu berpengaruh terhadap tingkat kelulushidupan, laju pertumbuhan spesifik dan rasio konversi pakan. Perlakuan terbaik didapat pada perlakuan suhu 18°C dengan SR 100%, SGR 0,49%.

EFFECT OF DIETARY PROBIOTIC SUPPLEMENTATION ON GROWTH PERFORMANCE, SURVIVAL RATE, AND CONDITION FACTOR OF RED NILE TILAPIA (Oreochromis niloticus L.)

2025-03-18T10:29:10+08:00

Red Nile Tilapia (Oreochromis niloticus L.) is one of the important commodities in aquaculture, possessing high economic value and promising prospects for supporting the economy and food security. Various efforts have been made to increase fish production, one of which is through the use of feed additives. Probiotics have been widely used in aquaculture, either as a feed supplement or applied directly to the culture media. This study aims to compare the growth, survival rate, and condition factor of Red Nila Tilapia fed with probiotic-supplemented feed and those without probiotics. The study was conducted over 84 days using Red Nila Tilapia measuring 6.8 cm, stocked in earthen ponds at a density of 10 fish/m². The results showed that Red Nila Tilapia fed with probiotic-supplemented feed had a higher growth performance compared to those without probiotics. The average daily growth rate and survival rate of fish given probiotics were 2.06 g/day and 87%, respectively, whereas fish without probiotic supplementation had 1.70 g/day and 84%. Conversely, fish fed with probiotics exhibited a condition factor of 1.06, which was lower than the 1.69 recorded in fish without probiotics. The findings of this study indicate that probiotics can be used as a feed additive for Red Nile Tilapia, providing positive effects on growth, survival rate, and fish health.

FEASIBILITY ANALYSIS OF FISH HANDLING PRACTICES IN THE SABILULUNGAN MODERN FISH MARKET

2024-02-13T08:19:26+08:00

In 2018 the Ministry of Maritime Affairs and Fisheries built the Sabilulungan modern fish market in Bandung Regency. This modern fish market was built the main aim of eliminating the public’s image of fish markets as dirty, muddy, smelly, and dirty. This research was conducted to determine the appropriateness of fish handling methods in modern fish markets. Analysis of the feasibility of fish handling methods is carried out by referring to the fish handling practice implementation checklist regulated by the Ministry of Maritime Affairs and Fisheries for supplier units. The assessment is modified with the Guttman scale and the finalo result will conclude the feasibility of the treatment method in the form of a percentage. The research result stated that the method of fish handling in modern fish market sabilulungan was not feasible with a feasibility value of 40.4%. It is recommended that modern fish market sabilulungan immediately create a management standard operating procedure, complete a documentation system, be firm in developing traders, appoint a special officer to be responsible for quality, complete and recognize facilities and infrastructure according to requirement, provide counseling regarding the principles of hygienic sanitation and training on good fish handling methods.

IDENTIFICATION OF SMOKED FISH PACKAGING SELECTION TO INCREASE SALES VALUE FOR SMOKED FISH PRODUCERS IN JAYAPURA CITY, PAPUA

2024-06-18T12:24:39+08:00

Smoked fish is a fish-based food product that is a leading product in Jayapura City, Papua. Most of the smoked fish demand in Jayapura City and surrounding districts is supplied from fish smoking centers in Hamadi and Imbi villages. The fish smoking technology used by producers, both in the fish smoking centers in Hamadi Village and the fish smoking centers in Imbi Village, is still relatively simple and unhygienic. Based on observations at smoked fish selling places, it was found that the average smoked fish trader sells their merchandise in an unpackaged condition. This makes the risk of contamination with pathogenic bacteria from the environment greater. The packaging materials used are also not able to protect smoked fish products from contamination that results in microbiological product damage. Common packaging materials used for smoked fish products are banana leaves, oil paper, and plastic bags. Based on the above problems, this study aims to determine how the packaging on smoked fish products in Jayapura City, Papua and how the role of packaging in improving the marketing of smoked fish products in Jayapura City, Papua. The tools and materials used in this research are stationery for writing, questionnaires for interviewing sources (business actors) and cameras for documentation. Data obtained from the field is presented in the form of pictures and analyzed securely.

Keywords: Jayapura City, Labeling, Packaging, Smoked Fish, Vacuum.

CHARACTERISTICS OF FROZEN FISH RESULTS FROM THE CATCH STOCKING ON A CONTAINING VESSEL KM. SEA OF BERLIANS-99 AT PPP MAYANGAN

2025-03-18T10:26:45+08:00

A fish collection vessel is a vessel specifically used to transport fish including the process of loading, holding, storing, cooling, and preserving fish on board. This research was conducted at the Mayangan Coastal Fisheries Port (PPP) with the aim of determining the characteristics of the types of fish catches collected at KM. Lautan Berlian-99 which were landed at PPP Mayangan. This research was conducted from September to November 2024 at PPP Mayangan using a qualitative method where data collection in this study was collected through the observation method, namely by directly observing the landing of fish at PPP Mayangan. The identification results showed ten types of fish that were successfully caught by fishermen from various fishing gear including purse seines, bottom longlines and drift nets. The fish were then put into the hold of the collection vessel by the transhipment process to be taken to the port. The measurements to be used are standard length measurements with units of cm. The measurements carried out include total length, half body length, tail length, eye height, body width, head width, and eye width.

RIVER MANAGEMENT BASED ON PHYSICAL CHEMICAL PARAMETERS OF WATER QUALITY IN WAI BATU GAJAH, AMBON CITY

2025-03-18T10:28:01+08:00

The increase in population has an impact on the water quality of several rivers in Ambon City, one of which is Wai Batu Gajah. This study aims to analyze the physical chemical parameters of the waters, describe community activities and management efforts that have been carried out, and recommend management strategies and programs in Wai Batu Gajah. The research was conducted in Wai Batu Gajah, Ambon City in May-June 2023 at 7 observation stations. The physical and chemical parameters measured included odor, color, width, height, substrate type, temperature, TSS, current velocity, pH, DO, BOD, and ammonia. The method of collecting data on physical and chemical parameters was carried out directly in the field, then analyzed in the laboratory of the Maluku Province Health and Calibration Center. Data on community activities were obtained through interviews using questionnaires to 35 respondents. The value of the physical and chemical parameters of the waters was referred to the river quality standards. Strategies and management programs were analyzed using SWOT and TOWS methods. The results showed that at stations 6-7, the color of the water was murky and blackish and caused a pungent odor. The average width and height of the river were 7.82 m and 48.49 cm, respectively. The substrate type of stations 1-6 is dominated by rocky sand while muddy sand at station 7. The average TSS value of 0.0399 mg/l and pH value of 8.65 showed that the value was in accordance with quality standards. DO values for stations 5-7, BOD at stations 6-7, and ammonia values for stations 4-7 do not meet quality standards. Community activities carried out are bathing, washing and disposing of garbage. Management efforts that have been carried out are rainwater harvesting, making biopore holes, waste banks, and river tracing. There are 6 management strategies with 16 programs for water quality management of Wai Batu Gajah.

FEED INTAKE AND GROWTH OF VANNAMEI SHRIMP (Litopenaeus vannamei) WITH THE ADDITION OF DIFFERENT ATTRACTANT SOURCES IN SELF-PREPARED FISH FEED

2025-04-07T21:48:24+08:00

One of the issues in aquaculture activities is the high cost of commercial feed, and self-prepared feed can be one of the solutions. Efforts to improve feed utilization in cultured organisms include the use of stimulants known as attractants. The objective of this study is to observe the use of different attractant sources in self-prepared feed for whiteleg shrimp (Litopenaeus vannamei) by examining feed consumption, feed conversion ratio (FCR), and the growth of the shrimp. The treatments in this study consisted of feed without the addition of attractants (A), feed with the addition of squid meal attractant (B), shrimp head meal (C), and rebon (small shrimp) meal (D). Whiteleg shrimp (DOC 30) with an average weight of 2.96±0.21 g were reared in aquariums, with each treatment consisting of four replicates. After the rearing period, the feed intake for treatments A, B, C, and D was 0.156 g/shrimp, 0.184 g/shrimp, 0.181 g/shrimp, and 0.167 g/shrimp, respectively. The feed conversion ratio (FCR) obtained was 1.8, 1.4, 1.2, and 1.3, respectively. The absolute growth for the four treatments was 1.092 g/shrimp, 1.632 g/shrimp, 1.779 g/shrimp, and 1.506 g/shrimp, respectively. Statistical analysis showed no significant differences among the four treatments (P>0.05) in terms of feed consumption, FCR, and growth. The results of this study highlight the potential use of shrimp head meal, which is a waste product, as an attractant and a protein source.

SEED PRODUCTION TECHNOLOGY OF PANGASIUS FISH (Pangasius sp.) AT THE MOJOKERTO AQUACULTURE INSTALLATION (IPB)

2025-04-07T21:52:23+08:00

This study discusses the implementation of technology and management in the seed production of catfish (Pangasius sp.) at the Mojokerto Aquaculture Installation (IPB). A descriptive method was employed, involving observation, interviews, active participation, and the use of secondary sources. Artificial spawning was conducted using Ovaprim hormone, and larvae were reared under controlled environmental conditions. The results showed a fertilization rate of 87% and a hatching rate of 91%. The first nursery phase yielded 673,036 fry, while the second nursery phase produced 538,560 fry, with respective survival rates of 71.5% and 80%. Key success factors included high-quality broodstock selection, proper feed and water quality management, and the use of effective aeration technology. However, challenges such as limited availability of quality broodstock, water quality fluctuations, and lack of skilled personnel persist. The study concludes that the application of modern hatchery technology can significantly improve catfish seed production and has potential for replication in other regions.

BUSINESS FEASIBILITY ANALYSIS ON FRESH FILLET PRODUCTS GOLDBAND SNAPPER (Pristimoides multidens) PT. MATSYARAJA ARNAWA STAMBHAPURA KUPANG, EAST NUSA TENGGARA

2025-04-14T22:04:05+08:00

Indonesia, as the largest archipelagic country in the world with a vast water area, has great potential in the fisheries industry. One of the leading products that has the potential to compete in the international market is fish fillets. PT. Matsyaraja Arnawa Stambhapura, which has been engaged in the processing of fishery products since 2017, has exported fresh fillet and frozen fillet products to various countries such as Australia, Singapore, Canada, and America. To ensure the sustainability of its business, a business feasibility study is needed that includes market, technical, human resource, environmental, and financial aspects. This study aims to evaluate investment potential and business feasibility to support optimal business decision making. The purpose of this study is to determine the business feasibility of the company PT. Matsyaraja Arnawa Stambhapura. This research was conducted on February 24 - May 09, 2025. This research was conducted by means of a survey with an internship method with quantitative data sources to analyze financial aspects through certain predetermined indicators. Business analysis obtained at the company PT. Matsyaraja Arnawa Stambhapura is a net profit of IDR 389,539,726, with BEP Unit 100 units, BEP price of IDR 2,035,965, Payback Period of 1.76 months and B/C Ratio of 1.91. So this business is feasible to be established.

APPLICATION OF INTEGRATED MULTI TROPHIC AQUACULTURE SYSTEM MODEL TO REDUCE WASTE ORGANIC MATERIALS

2025-04-14T22:04:19+08:00

ABSTRACT

The use of intensive aquaculture systems is one of the activities that provide an overview of aquaculture to increase production due to the high stocking density of fish but has an impact on the contribution of waste from fish farming. Overcoming existing problems with the application of the Integrated Multi Trophic Aquaculture system cultivation model, this system is expected to help reduce cultivation waste. The purpose of this study is to determine how the IMTA system can help reduce organic waste in the aquatic environment so that water quality can be maintained and suitable for the life of organisms. This research was conducted from June to July 2023, at the Center for the Study and Development of Regional Excellence and Empowerment of Coastal Communities. The method used was descriptive quantitative. The results of the TOM analysis value in all treatments decreased. in treatment A 21.1 mg/l, B 41.0 mg/l and C 34.7 mg/l. TSS decreased differently every time, especially on day 42 for treatment A 0.031 mg/l, B 0.023 mg/l and C 0.178 mg/l. Ammonia for day 42 also decreased, namely in treatment A 0.03 mg/l, B 0.20 mg/l, C 0.13 mg/l. On day 42 nitrate for treatment A 0.03 mg/l, B 0.06 mg/l, C 0.08 mg/l. Water quality parameters for temperature, salinity, dissolved oxygen and acidity had reasonable values for all biota reared. Conclusion The IMTA system can help reduce organic waste of TOM, TSS, ammonia and nitrate, in addition, it can also reduce the amount of organic waste

ANALYSIS OF WATER QUALITY BASED ON COMPOSITION AND ABUDANCE OF PHYTOPLANKTON IN RASAU JAYA RIVER

2025-04-14T22:04:45+08:00

FEED MANAGEMENT INNOVATIONS FOR ENHANCING THE GROWTH PERFORMANCE OF VANNAMEI SHRIMP LARVAE (LITOPENAEUS VANNAMEI)

2025-04-14T22:05:10+08:00

Feed management is a crucial component in the cultivation of vannamei shrimp, particularly during the larval stage which requires complex and varied nutritional needs. This study aims to explore innovative feed management strategies by combining natural and artificial feeds in an industrial-scale setting at Hatchery PT Suri Tani Pemuka, Bali. Natural feeds used included Thalassiosira sp. and Artemia salina, along with six types of artificial feeds administered throughout the larval rearing period from Nauplius to Post Larva (PL) 11 stages. Growth parameters, larval health, and water quality were regularly monitored. The results showed that this feed combination provided high nutritional content (45–60% protein, 16–23% fat) and favorable larval survival rates, ranging from 63.62% to 76.15% across the three rearing tanks. There were no significant differences in larval length among tanks (P>0.05), and water quality parameters remained within optimal thresholds. Microscopic observations supported visual assessments, indicating good physiological development in the larvae. This innovative feeding strategy demonstrates strong potential to enhance the sustainability and efficiency of vannamei shrimp larval aquaculture

HOUSEHOLD-SCALE REARING OF CANTANG GROUPER LARVAE (EPINEPHELUS FUSCOGUTTATUS × EPINEPHELUS LANCEOLATUS) AT UD. ARIF HATCHERY, GEROKGAK DISTRICT, BULELENG REGENCY, BALI

2025-04-07T21:50:27+08:00

The maintenance of cantang grouper larvae on a household scale faces challenges in maintaining water quality, feeding, and disease control. This study aims to analyze maintenance techniques to improve larval survival. The method used is descriptive with observation, interviews, and literature studies. The research was conducted at UD. Arif Hatchery, Bali, with the main parameters observed including temperature, salinity, pH, nitrite and nitrate levels, Survival Rate, and the effectiveness of natural and artificial feed. The results showed that the optimal water quality for the maintenance of grouper larvae was 27–30°C, salinity 30–33 ppt, pH 7.5–8.5, and nitrite levels <0.01 mg/L and nitrates <2 mg/L. Gradual feeding from rotifers, nauplius artemia, to artificial feed was able to increase the larval survival rate. Water management with flow-through systems and regular flushing also plays an important role in the success of maintenance. From this study, it can be concluded that the application of good maintenance techniques, including water quality control, feeding strategies, and disease management, greatly determines the success of the production of cantang grouper fish fry on a household scale

DISTRIBUTION OF CORAL REEFS IN THE WATERS OF PANGEMPANG MUARA BADAK DISTRICT KUTAI KARTANEGARA REGENCY

2025-03-14T19:14:40+08:00

This study aims to verify the presence and map the distribution of coral reefs in the waters of Pangempang Hamlet, Muara Badak District, Kutai Kartanegara Regency. The methods used include field surveys, remote sensing image interpretation, and GIS-based spatial analysis. Data collection was conducted at 13 locations with varying depths and distances from the shore. The research results show that four locations have been verified to contain coral reef ecosystems, with areas ranging from 0.41 to 6.26 hectares. The location with the largest coral reef area is Batu Lampe Besar (6.26 hectares), which has great potential for conservation and marine ecotourism. Acropora coral is the dominant coral species found, as it was identified at every surveyed location. Based on these findings, it is recommended to implement community-based conservation efforts, regular monitoring, and further research to ensure the sustainability of the coral reef ecosystem in the Pangempang area.

DISTRBUTION OF SEAGRASS SPESCIES BASED ON SUBSTRATE TYPE IN THE WATERS OF SAWAPUDO VILLAGE, KONAWE REGENCY

2025-01-14T16:07:12+08:00

Seagrass meadows, which are extensive and distributed across various substrate types, play a crucial role in nutrient management and maintaining aquatic ecosystem stability. This study aims to determine the distribution of seagrass species, including seagrass density and seagrass cover percentage based on substrate types in the waters of Sawapudo Village. The purpose is to describe the condition of seagrass ecosystem distribution and provide initial information for coastal and marine resources. Seagrass sampling was conducted using quadrat transects at three stations determined by substrate type. The substrate types were sandy-muddy at Station I, muddy at Station II, and sandy at Station III. During the study period, the seagrass species found at the three stations were Enhalus acoroides, Thallasia hemprichii, Cymodocea rotundata, and Halodule uninervis. The average seagrass density at Station I was 216 shoots/m², at Station II was 293 shoots/m², and at Station III was 191 shoots/m². The seagrass cover percentage at Station I was 67.97%, at Station II was 72.45%, and at Station III was 53.44%. The seagrass distribution pattern at Station I had an Index of 1.64, at Station II an Index of 1.61, and at Station III an Index of 1.15. Differences in seagrass density are attributed to variations in substrate types. The seagrass cover percentage is influenced by the number of shoots, morphology, and substrate type. The seagrass species distribution pattern at the research location is clumped.

Key words: Coverage, Density, Distribution Pattern, Seagrass, Substrate Type