TORANI: Journal of Fisheries and Marine Science
Not a member yet
149 research outputs found
Sort by
Analysis the Effect of the Moon Phase in Optimization of Growth and Survival Mangrove Crabs (Scylla olivacea) in Silvofishery Systems
Full text linkSilvofishery is a cultivation activity in mangrove or mangrove areas, the type of biota that can be cultivated in mangrove areas using a silvofishery system, one of which is mangrove crab (Scylla olivacea). The research was carried out in the mangrove area of Mandalle Village, Mandalle District, Pangkajene and Islands Regency, South Sulawesi Province. The test animal used was a male mangrove crab (S. olivacea) weighing 146–168 g which was kept in a circular bamboo cage with a diameter of 2.25 m. The results of the Kruskal Wallis analysis show that the moon phase has a significant effect on the absolute growth and daily growth rate of mud crabs, the dark moon phase produces the highest average absolute growth of 14.53 g with a daily growth rate of 0.57%/day. Meanwhile, the full moon phase produced the lowest average absolute growth of 7.82 g with a daily growth rate of 0.32%/day. The results of the Kruskal Wallis analysis showed that differences in lunar phases had no significant effect on the survival of mud crabs
Trends in Indonesia\u27s Fishery Commodity Exports
No full textIndonesia is one of the largest seafood producing countries in the world, with significant fisheries potential to support national economic growth. This study aim to analyzes the export volume and value trends of Indonesia\u27s fishery products from 2018 to 2023, focusing on key commodities such as shrimp, tuna, seaweed, crabs, and lobster. The data used includes annual export volume and value for each commodity. The analysis results show that the volume of Indonesia\u27s fishery exports fluctuated, with a significant increase until 2020 (1,262,830 tons) and a decline in 2021 and 2022, although it remained stable in 2023 (1,221,196 tons). The export value also showed a significant increasing trend, peaking in 2022 at 6,242,085 USD, before decreasing to 5,630,947 USD in 2023. Despite the decline in the last two years, the fishery sector in Indonesia continues to make a significant contribution to the national economy, with key commodities maintaining high competitiveness in the international market. These findings are important for the development of strategies that can boost Indonesia\u27s fishery exports and strengthen its position as a leading global exporter
Productivity Scenedesmus sp. in Various Cultivation Media
Full text linkScenedesmus sp. is one of the microalgae that is used as natural food for fish seeds or larvae. Scenedesmus sp. contains 8-56% protein, 10-52% carbohydrates, 2-40% fat, and 3-6% nucleic acid. Scenedesmus sp. also contains fatty acids in the form of lauric acid (0.22%), myrsiric acid (0.34%), linolenic acid (16.16%), glycerol trilaurate (3.73%), and vanil laurate (35.52%). Cultivation of Scenedesmus sp. can be done using inorganic fertilizer or waste water media. The types of inorganic fertilizer commonly used for cultivation are urea, KCL, TSP, Intermediate, Raja Bandeng brand. Meanwhile, waste water media can be used for cultivating Scenedesmus sp. namely tofu liquid waste water, milk waste water, bean sprout extract media, textile waste water. The results of cultivation in this media have an influence on the productivity of Scenedesmus sp
Small-scale Fishermen\u27s Adaptation to Climate Change Impacts in Coastal Areas and Small Islands in Pangkep Regency
Full text linkClimate change is a global challenge that has significant impacts on the fisheries sector. This phenomenon involves increasing global temperatures, changing weather patterns, rising sea levels, and increasing the frequency and intensity of natural disasters. Climate change not only threatens marine ecosystems but also affects the livelihoods of coastal communities, especially small-scale fishers who depend on fisheries resources for their survival. This study aims to analysis the economic adaptation of small-scale fishers in facing the impacts of climate change. The research was conducted from May to October 2024 in Pangkajene Islands Regency (Pangkep). This research used a descriptive qualitative approach with data collection through interviews, questionnaires, field observations, and literature studies. Respondents in this study were 50 fishermen who were selected purposively. Data analysis used with descriptive qualitative. The results show that climate change has a significant impact on fishing patterns and catches. The increase in sea temperature, high waves, and storms cause a decrease in productivity and increase the risk of damage to fishing gear. In facing these challenges, fishers apply economic adaptation strategies such as livelihood diversification, regulation of fishing period/time, improving fishing technology, changing fishing areas, and strengthening community cooperation. This research recommends strengthening the capacity of fishermen through training, access to microfinance, and development of disaster-resistant infrastructure. The results of this study are expected to serve as a basis for the government and stakeholders in formulating community-based adaptation policies to increase the resilience of small-scale fishing communities to the impacts of climate change
Comparative Analysis of Consumer Preferences for Meatballs with 70% Barracuda Fish (Sphyraena barracuda) and 9% Seaweed (Kappaphycus alvarezii)
Full text linkThis study aims to analyze consumer preferences for meatballs formulated with 70% barracuda fish (Sphyraena barracuda) and 9% seaweed (Kappaphycus alvarezii), and to compare them with conventional meatballs. The method used is an organoleptic test involving 20 respondents in Makassar City. Respondents assessed four main aspects: taste, aroma, texture, and appearance, using a Likert scale (1–5). Descriptive analysis results show that barracuda fish meatballs scored higher in texture (4.0) compared to conventional meatballs (3.7), while conventional meatballs were superior in taste (4.5 versus 4.2). The t-test results indicate that the difference in texture is significant (p 0.05). Overall, meatballs made with barracuda fish and seaweed have potential for commercial development, especially as a healthier alternative with optimal nutritional value
Ornamental Fish Marketing Mix Strategy in Jatinegara Ornamental Fish Market
Full text linkThis study aims to determine the characteristics of sellers and analyze the 7P marketing mix strategy applied in the Jatinegara Ornamental Fish Market. The research will be conducted from August 2023 to September 2023 at the Jatinegara Ornamental Fish Market, Jatinegara District, East Jakarta. The research method used is the case study method, with a sampling technique that is purposive sampling. The data analysis used is Descriptive Marketing Mix. The results of research on ornamental fish sellers have male characteristics with the domicile of Jatinegara District, age range 26-40 years with the majority of the last high school education / equivalent. Sellers in this market earn an average income per day of Rp 1,500,000 – Rp 2,000,000 with 4-6 years of sales experience. The results of marketing mix research applied to the Jatinegara Ornamental Fish Market can be seen from the 7P point of view, namely 1) The results of the marketing mix in products include product diversity and types of packaging for transporting ornamental fish, 2) The results of the marketing mix in prices include price variations and causes of price variations, 3) The results of the marketing mix carried out include sales locations that are narrow land and no parking space is available, 4) Physical evidence include product arrangement and product information on display, 5) The results of the marketing mix in people include informative seller attitudes, 6) Promotion includes promotional media, 7) The process includes payment methods and receipts
Analysis of Compliance Level of Fishing Activities In The Natuna Sea
Full text linkIllegal fishing in Indonesian territorial waters, especially by foreign fishermen, has harmed the Indonesian state financially, because it has contributed greatly in reducing productivity and catches very significantly. It has has also threatened the sustainability of the utilization of Indonesia’s marine fishery resources. Economic losses due to IUUF are not only in the form of state income which reaches the range of Rp. 30 trillion per year, but also the loss of opportunities to utilize fish resources of around 1 million tons of fish each year that can be caught (harvested) by Indonesian fishermen, and what happens is in fact stolen by foreign fishermen. entering Indonesian waters. Foreign fishermen who often enter Indonesian waters, among others, come from Thailand, Vietnam, the Philippines, and Malaysia. To prevent and overcome IUUF activities, one of the steps taken by the Ministry of Maritime Affairs and Fisheries (KKP) of the Republic of Indonesia through the Directorate General of Supervision of Marine and Fishery Resources (DITJEN PSDKP) is to supervise fisheries such as fishing activities in the fisheries management area of the Republic of Indonesia. Supervisory implementation is carried out by the Technical Implementation Unit (UPT) PSDKP. UPT Directorate General of PSDKP in handling its duties is supported by the Marine and Fishery Resources Supervision Unit (PSDKP Satker) and Marine and Fishery Resources Monitoring Post (PSDKP Post) spread throughout Indonesia. In carrying out its duties, the Fisheries Supervisory Vessel may stop, inspect, carry, and detain ships suspected of violating the law to the nearest port for further processing. In addition, based on Law No. 31 of 2004 concerning Fisheries, as amended by Law No. 45 of 2009, in certain cases Fishery Supervisory Vessels, in this case, fishery supervisors or Fisheries Civil Servants Investigators, can also take special actions in the form of drowning. The high level of fishing activity in the Indonesian State Fisheries Management Area 711 must be accompanied by adequate monitoring activities to ensure compliance by business actors, both industrial scale and small fishermen, so that the sustainability of fisheries resources can be maintained
Digestibility of Feed Supplemented with Common Pleco Meal and Its Impact on The Growth of Nile Tilapia (Oreochromis sp.)
Full text linkCommon pleco is a wild fish whose habitat occupies a lot of reservoir areas and public waters in Indonesia. The amount is abundant and not consumed by humans, is a great potential to be used as a source of animal protein in fish feed. The purpose of this study was to evaluate the digestibility of common pleco fish meal in artificial feed for nile tilapia (Oreochromis niloticus.) The study was carried out at the Aquaculture Laboratory Hatchery, Faculty of Fisheries and Marine Sciences, Universitas Padjadjaran, while the manufacture of common pleco meal, proximate analysis of feed ingredients and the test feed was carried out by the Laboratory of Chemistry and Animal Feed, Faculty of Animal Husbandry, Universitas Padjadjaran. The design used in this study was a Completely Randomized Design (CRD) consisting of 5 (five) treatments and 3 (three) replications. The treatment given was the addition of common pleco flour in artificial feed at 0%, 5%, 10%, 15% and 20%. The parameters observed in this study consisted of digestibility, growth rate, and water quality. The results of the research on some of these parameters indicate that the addition of common pleco meal can still be used in artificial feed up to 10%. The tilapia studied had the highest relative growth with a value of 0.218%. The digestibility level of the studied feed reached a value of 85.256%, and the water quality studied was still within the safe tolerance limits for fish farming. Based on the results of this study, the negative effect on the survival rate of tilapia did not occur until the addition of common pleco flour to artificial feed reached 10%. Thus, the fish meal has the potential as an alternative to fish meal in fish feed formulations
The Level of Utilization of Small Pelagic Fish Resources in Buton Regency, Southeast Sulawesi
Full text linkManagement of small pelagic fish resources is one of the efforts to prevent a decrease in the carrying capacity of small pelagic fish resources which has continued to experience a decline in production capacity in Buton Regency since the last 5 years since 2016. This study aims to analyze CPUE (Catch per Unit Effort), sustainable potential (MSY) and level of utilization and level of exploitation so that it can become information for managing the utilization of small pelagic fish resources. The research method used analysis of the level of utilization and level of effort based on statistical data on fisheries production for the 2016-2020 period. The results of this study indicate that there is a relationship between CPUE and fishing effort, namely a decrease in CPUE of 0.4092 tons for every increase of effort of 1 effort, optimum catch value (CMSY) of 9447.04 tons per year, and optimum effort value (EMSY) of 152 attempts per year, the utilization rate is still below CMSY with an average of 7557.64 tons and the utilization rate has exceeded EMSY with an average of 178 units per year. The average value of the utilization rate for small pelagic fish in Buton Regency is 94.56%, meaning that it has exceeded the Total Allowed Catch (TAC) but not exceeded the MSY value, while the average effort level is 116.84%. This means that fishermen\u27s catches can still be optimized, but may not exceed MSY, which is 9447.04 tons per year. Trends in the level of utilization and effort level of small pelagic fish resources in the last five years indicate that the utilization rate of small pelagic fish resources has decreased in line with increasing levels of exploitation each year
Zonation of The Waters of Spermonde Archipelago Base on Nutrient Concentration and Its Impact to Coral Reef Ecosystem
Full text linkThe Spermonde Archipelago is divided into four zones, the division of zones is based on the distribution of coral reefs, distance from the mainland, and water depth, but this condition tends to change as a result of high anthropogenic activity in the Spermonde Islands. Based on this, it is very necessary to re-zoning the Spermonde Archipelago Waters based on the condition of nutrient distribution. The research method uses the integration of remote sensing data analysis, field surveys, and secondary data which are then analyzed using the Boleean method for re-zoning. The results showed that the nutrient, in this case, chlorophyll-a, was concentrated in the deep zone (near the mainland) and the concentration was higher during the rainy season, this condition affected the coral reef cover in the Spermonde Islands. Based on these conditions, the Spermonde Islands waters are divided into three zones, namely the inner zone with high nutrient conditions with a benthic cover dominated by fleshy macroalgae, the middle zone with low nutrient conditions with crustose coralline dominance, and the outer zone with low nutrient conditions with algal turf dominance turf alga/corals.