Jurnal IPTEKS Pemanfaatan Sumberdaya Perikanan
Jurnal IPTEKS Pemanfaatan Sumberdaya Perikanan is a peer-reviewed journal published by the Faculty of Marine Science and Fisheries Hasanuddin University. The journal is a scientific and independent journal covering original research and review on fishing technology, fishing strategy and management, marine fisheries information system, and fish handling and processing technology, including: Aquatic Science Fishing Technology Fishing Gear and vessel Fishing Ground Fish Handling and Processing Fisheries Information System Fishing Management Fisheries Oceanography Estimation of Fish Stock and Conservation This journal publishes papers in the field of marine and fisheries science for the first time in the April 2014 issue and the Faculty of Marine and Fisheries Sciences is its publisher. This journal is the Scientific Journal of Science, Technology, and the Art of Fisheries Resources Utilization which is published twice a year (April and October).
Financial Feasibility Analysis of Pickled Skipjack Tuna Products at Titiefood MSMEs in Gorontalo City
This study aims to analyze the financial feasibility of the pickled skipjack tuna production business at the Titie Food MSME in Gorontalo City through the R/C Ratio, Break Even Point (BEP), and Payback Period (PP) approaches. The research method uses a quantitative descriptive approach by collecting data on fixed costs, variable costs, production volume, revenue, and initial investment incurred by the MSME. The results show that the total fixed costs of the Titie Food MSME are IDR 8,606,165.46 per month, with total variable costs reaching IDR 37,275,000.00 for a production capacity of 2,100 units. The R/C Ratio analysis shows a value greater than 1, which indicates that the business is in a profitable condition and is feasible to run. The BEP analysis shows that the business reaches the break-even point at sales of 703 units or IDR 21,090,000, while actual production far exceeds this value, thus providing a high safety margin. Furthermore, the Payback Period (PP) analysis shows that the initial investment of IDR 413,178,997.00 can be recovered within 24.13 months, or approximately two years. Overall, the results of this study confirm that the pickled skipjack tuna production business at the Titie Food MSME is financially viable and has good long-term development prospects
Copyright (c) 2025 Jurnal IPTEKS Pemanfaatan Sumberdaya Perikanan https://creativecommons.org/licenses/by/4.0
Productivity and Catch Composition of Purse Seine Fisheries at The Kasiwa Fish Landing Base, Mamuju Regency, West Sulawesi
This study aims to analyze the productivity and catch composition of fish using purse seine gear at the Fish Landing Base (PPI) Kasiwa, Mamuju Regency, West Sulawesi. The research employed a quantitative approach, with primary data collected from two purse seine vessels during one month of fishing operations. Secondary data were obtained from relevant literature and institutions. The analysis was conducted by calculating the productivity levels and catch composition of purse seine operations.The results show that the productivity of purse seine varied across fishing trips, but overall, the gear was considered feasible and relatively efficient. The catch composition was dominated by small pelagic fish, particularly kawakawa (tongkol banyar) at 32% and frigate tuna (tongkol pisang balaki) at 24%, followed by bullet tuna (tongkol pisang cerutu), skipjack (cakalang), mackerel (kembung), and scads (layang deles). These findings indicate that purse seine fishing is well-suited to the characteristics of fish resources in Mamuju waters and has the potential to support sustainable fisheries management.
The Analysis of Environmentally Friendliness Level of Collapsible Traps in Tambakoso, Sidoarjo Regency
Sustainable fisheries are an essential agenda in Indonesia’s capture fisheries sector to ensure future fish availability, preserve ecosystems, and maintain fishermen’s livelihoods. One approach to achieving sustainable fisheries is through the application of the Code of Conduct for Responsible Fisheries (CCRF), which serves as a framework for assessing whether capture fisheries activities are environmentally friendly and capable of supporting sustainability. This study aims to evaluate the environmental friendliness of fishing gear used by fishermen in Tambakoso Village, Sidoarjo Regency. Data were collected through direct observation and interviews with 11 fishermen operating collapsible traps (bubu lipat) targeting tiger snail (Babylonia spirata). Using a mixed-methods approach and nine principles of the CCRF, the results indicate that the collapsible trap fishing gear used by fishermen in Tambakoso Village is classified as highly environmentally friendly, achieving a total score of 30.8 points.
Evaluation of the Integrated Marine and Fisheries Center Development Program in Natuna Regency
This study aims to evaluate the implementation of the Integrated Marine and Fisheries Center Development Program (Sentra Kelautan dan Perikanan Terpadu or SKPT) in Natuna Regency, focusing on its benefits for fishers and coastal communities. A descriptive qualitative approach was used, involving in-depth interviews, observations, and documentation. The results show diverse perspectives among stakeholders. Some fishers and cooperative managers perceive the SKPT as beneficial in expanding market access and maintaining product quality; however, limited capital, low post-harvest skills, and weak institutional readiness remain major challenges. Meanwhile, officials from the Department of Marine and Fisheries and SKPT managers emphasize the need to improve inter-institutional coordination and landing regulations to optimize the program's effectiveness. The study also reveals protests and resistance from coastal communities, particularly traditional fishers, who feel disadvantaged due to reduced fishing zones and unequal distribution of aid. Furthermore, academic assessments indicate that the program’s success remains partial, with significant physical achievements but limited impact on broad economic welfare improvements. Based on these findings, it is concluded that the success of the SKPT requires a participatory approach, strengthening of local capacity, and continuous evaluation based on comprehensive evaluation models such as CIPP. The implications of this study highlight the importance of aligning physical, social, and economic development to achieve the goals of independence and sustainable welfare for Natuna’s coastal communities.
A EAFM (Ecosystem Approach to Fisheries Management) Social Domain Assessment at The Fishing Base of Lampu Satu Coast, Merauke
The social domain is one of the important domains in EAFM (Ecosystem Approach to Fisheries Management), which has the aim of ensuring the social welfare of fisheries communities such as high participation of stakeholders, minimal social conflicts in fisheries communities, and high utilisation of local knowledge in managing fisheries resources. This study aims to assess the status of stakeholder activeness, Fisheries Conflict Status and Existence Status and the effectiveness of local knowledge application in fisheries resource management based on EAFM social domain. This research was conducted at the fishing base of Merauke light beach one in 2024. The population in this study were fisheries communities and stakeholders in fisheries management. Sample withdrawal based on Roscoe as many as 34 respondents. Data analysis method using EAFM indicator domain assessment was analysed using multi criteria analysis (MCA) approach, which is an approach to convert qualitative data into quantitative. The results showed that stakeholder activeness was at poor criteria and given a red flag, Fisheries Conflict was at poor criteria and given a red flag, the existence and effectiveness of the application of local knowledge was at moderate criteria and given a yellow flag
Bibliometric Analysis of Research Trends on Catch Handling on Purse Seine Vessels
This study aims to analyze research trends related to the handling of catch on purse seine ships using a bibliometric approach. The fishing industry has a strategic role in food supply and global economic growth, where purse seine is one of the most commonly used fishing gear. The handling of catches on board ships has a great influence on fish quality, economic efficiency, and the sustainability of the fishery industry. However, there are still various challenges in the implementation of optimal storage methods, pre-processing, and sanitation and hygiene on board. Using data from the Scopus database, this study analyzes publication patterns, research collaborations, and main topics that develop in the study of handling catch on purse seine ships. The results of the analysis show that there is an increase in research interest in the aspects of storage technology and sustainability of fishery products. In addition, this study identifies a gap in studies related to technological innovations in handling fish on ships that are more efficient and environmentally friendly. The implications of this study provide insights for academics, industry practitioners, and policymakers to improve more effective and sustainable catch management systems.
Effect of Type of Diluent on The Growth of Bacterial Colonies Bacillus sp. on The Isolation Process in Bacterial Culture
Bacillus sp. are bacteria that play an important role in shrimp farming, especially in maintaining the balance of the pond ecosystem and as probiotics. This study aims to determine the effect of the type of diluent on the number of Bacillus sp. colonies formed in the isolation process and determine the most effective diluent. Three types of diluents were used, namely distilled water, NaCl solution, and infusion water (NaCl 0.9%). This study used a completely randomized design (CRD) with 9 replicates in each treatment. The data obtained were analyzed using one-way ANOVA to determine the significance of differences between treatments, followed by Tukey test and LSD 5%. The results showed that distilled water produced the highest number of colonies (1711.56), followed by infusion water (1222) and NaCl solution (771.44). The ANOVA test showed highly significant differences (p<0.05) between treatments, with Tukey and LSD 5% test results supporting these findings. 0.9% infused water was proven to be an effective diluent for the isolation of Bacillus sp. which provides an accurate picture of the bacterial population, because growth is optimal and remains controlled. This study recommends the use of infusion solution in the process of bacterial isolation to be applied in pond culture, in order to improve water quality through the utilization of probiotic bacteria.
The Effect of Adding Milkfish Flour on The Preference Level of Cireng
The enhancement of the nutritional content in Cireng can be achieved by adding milkfish meat flour. This study aims to determine the appropriate amount of milkfish flour to add in the preparation of Cireng to produce the product most preferred by the panelists. The method used was experimental, with four treatments: 0%, 2.5%, 5%, and 7.5% addition of milkfish flour. The parameters observed included preference analysis using a hedonic test to assess appearance, aroma, texture, and taste, as well as proximate analysis and Texture Profile Analyzer (TPA) to evaluate chemical composition and texture characteristics. The results showed that the 5% milkfish flour treatment produced the most preferred Cireng, with the highest average hedonic scores across all sensory attributes: 7.13 for appearance, 7.07 for aroma, 7.80 for texture, and 7.07 for taste. Proximate analysis results showed protein content (3.11%), ash content (0.73%), fat content (0.83%), moisture content (45.36%), and carbohydrate content (48.79%). The TPA results indicated an increase in hardness (1,104.188 gForce) and recovery (0.996%), but a decrease in cohesiveness (0.430%), chewiness (455.576 gForce), gumminess (478.129 gForce), and resilience (0.631%).
Muhammad Qobul Raja Dirgantara Giwangkara
Coastal Community Perceptions of Conservation Areas in Sumalata District, North Gorontalo Regency
This research aims to analyze public perceptions regarding coastal conservation areas in Sumalata District, North Gorontalo Regency. Conservation areas have an important role in protecting marine ecosystems, but effective management requires the support of coastal communities. This research uses survey and interview methods to explore the community's understanding of the benefits, challenges and their role in managing conservation areas. The research results show that community attitudes towards area conservation are generally positive, with a good understanding of the importance of conservation. In addition, the public's awareness of marine conservation regulations is high, especially regarding the implementation of protection regulations which have a direct impact on their daily activities. This research recommends increasing education and active community involvement in the management of conservation areas as an effort to increase the effectiveness of marine conservation in Sumalata District, North Gorontalo Regency.
Copyright (c) 2024 Jurnal IPTEKS Pemanfaatan Sumberdaya Perikanan https://creativecommons.org/licenses/by/4.0
Diversification of Trash Fish Processing: The Impact of Composition on The Characteristics of Fish Balls in The Pasar Manna Region, South Bengkulu
The production of trash fish from capture fisheries in South Bengkulu Regency is remarkably high but remains underutilised by the local community. Predominant trashfish species include peperek (Leiognathus bindus), senangin (Polynemus tetradactylum), and gulamah (Johnius trachycephalus). This study aims to evaluate the organoleptic, physical, and chemical characteristics of fish balls derived from trash fish through compositional experimentation. The research employed a randomised complete design (RCD) with seven product formulations and three replications. The study was conducted and tested at the Faculty of Agriculture Laboratory, Universitas Sriwijaya, from March to May 2024. The results revealed significant effects of multi-species fish ball compositions on moisture content, ash content, protein content, fat content, and whiteness degree. The gel strength testing showed a maximum gel strength of 138.73 g/cm². Furthermore, this research highlights that factors influencing the success of diversification strategies, including climate, freshness, trash fish species, production processes, ice addition, and raw material availability, could contribute to increased value and community welfare
The Influence of Promotion Through Instagram On Purchasing Decisions For Processed Fish Products at Dakon Frozen Food Sleman, Yogyakarta
Promotion is important in marketing activities, especially in increasing traffic, known as online promotion. Along with the development of increasingly sophisticated technology, the internet is no stranger to marketing a product. An effort to sell a product or service using Internet media can also be called e-marketing. This study aimed to know the effect of promotion through instagram on purchasing decisions for processed fish products at Dakon Frozen Food Sleman, Yogyakarta. The quantitative data of this study are questionnaires distributed to consumers of Dakon Frozen Food Yogyakarta. The sample used in this study were instagram users, with a sample size of 40. The data sources used are primary data and secondary data. The data collection technique used was distributing questionnaires. The data analysis techniques researchers use are simple linear regression, validity test, reliability test, normality test, linearity test, simple linear regression test, correlation coefficient test, determination coefficient test, and hypothesis testing. The results showed that the simple regression analysis equation obtained was Y = 11.242 + 0.756X + e. Instagram promotion (X) significantly influences the purchasing decision variable (Y), with a coefficient of 11.242. In testing the hypothesis using the t-test, the t-count value of the Instagram promotion variable is 11.242> from the table, which is 2.026 and a significant value of 0.000 <0.05. This means that H1 is accepted, namely: There is an influence of Instagram promotion on purchasing decisions for processed fish products at Dakon Frozen Food Sleman, Yogyakarta
Income Analysis of Catching Equipment Business Revenue in Kampung Laut Village, Tanjung Jabung Timur District
This study aims to determine the income of traditional fishermen with splints in the village of Kampung Laut, Tanjung Jabung Timur Regency. This research was conducted on March 24 – April 03, 2022. This research is a survey research. The types of data collected are primary data and secondary data. Data collection techniques were carried out by direct interviews with splint fishermen with questions made in the form of research questionnaires. Determination of research respondents based on the Proposive Sampling method on 9 fishermen for 10 days/trip. Fishermen's income is calculated by looking at working capital/operational costs, catch and selling price. Analysis of the data used includes total costs, revenues, revenues and R/C ratio. The splints caught in the waters of Kampung Laut are Gulamah Fish (Johnius trachycephalus), Sembilang Fish (Paraplotosus albirabris), Mullet (Mugil cephalus), Tongue Fish (Cynoglossus lingua), Striped Shrimp (Parapenaeopsis sculptilis), Lime Shrimp (Matapenaeus brevicornis), Trash fish (Thryssa cuvier), eel (Gymnothorax dorsalis), puffer fish (Aratutron nigropunchtatus). The results showed that the average income of fishermen with splints was Rp.785.180/trip, with operational costs of Rp.264.319/trip, resulting in a net income of Rp.520.861/trip for fishing gear. in the waters of Kampung Laut using a profit-sharing system of 60:40 (2 crew members) where the income of the fisherman/captain is Rp. The fishing effort using this splint fishing gear obtained a B/C ratio value of 1.97. The conclusion of this study is that the fishing effort in the waters of Kampung Laut with splint fishing gear is profitable and feasible to run. The income received by the owner fishermen is quite good because it can cover the operational costs incurred by the ship owner.
Impact of Moon Phases on Purse Seine Fishing Yields in Bulukumba Waters
The activity of small pelagic fish is influenced by light, so changes in the moon phase will impact the distribution of fish, especially small pelagic fish. Therefore, this research aims to determine the concentration of fish based on lunar phases and explain the composition and frequency of fishing based on lunar phases in Bulukumba Regency. This research aims to provide information to fishermen to determine potential fishing areas. Data was collected in Bulukumba from July to September 2020 following 28 fishing trips using purse seines. The data used are primary and secondary. Primary data consists of the type and number of catches grouped based on lunar phases, namely dark, dark-to-light, light, and light-to-dark periods. Secondary data was obtained from interviews and literature studies. The data analysis used calculates the composition and frequency of catches. The results showed that there were eight types of fish caught during the research. The types of fish most commonly seen are trevally (Decapterus spp), yellow trevally (Selaroides sp), and mackerel (Rastrelliger spp). The highest catch frequency of these three types of fish occurred during the light-dark and light-dark periods.
A Review of The Effectiveness of Fish Aggregating Devices (FADs) in Indonesian Waters
The utilization of Fish Aggregating Devices (FADs) in fisheries represents one of the most attractive and effective methods for increasing fishermen's catches. This review article aims to evaluate the use of FADs in enhancing sustainable catch outcomes and considers their role as an effective management tool. Various types of FADs have been designed and developed across different waters in Indonesia. There are several types of FADs commonly observed, including Squid FADs, Bio FADs, Sea urchins FADs, Electronic FADs, Bamboo raft FADs, Coconut leaf attractor FADs, Palm fiber attractor FADs, Light attractor FADs, FADs palm midrib, Rafia rope attractor FADs, Lubuk larangan FADs, and Fiber FADs. This paper reviews the different types of FADs, considering aspects such as the catch produced, technical specifications, and economic factors. Among these, portable FADs constructed from coconut leaves and raffia lines as attractors emerge as particularly effective and commonly used in Indonesian waters. FADs are also often combined with lift nets or electric fish attractors to enhance their effectiveness. Environmentally friendly fishing gears such as handlines and fishing rods are commonly operated around FADs. The types of fish caught typically include a mix of small and large pelagic species.
Nutritional Contents of Catfish (Pangasius Sp.) Jambal Roti Products Sidenreng Rappang Regency, South Sulawesi
Catfish (Pangasius sp.) is a popular type of freshwater fish that has the potential to be cultivated in Indonesia. So far, the use of catfish, especially those from Sidenreng Lake, Sidenreng Rappang Regency, South Sulawesi, has not been optimal. Catfish is only used as a fresh commodity without processing and preservation activities. One of the well-known preserved products is jambal roti. Jambal roti is a product of salt fermentation. This research aims to analyze the nutrition contents of jambal roti catfish, Sidenreng Rappang Regency, South Sulawesi. The research method used was experimental with a Completely Randomized Research Design. The treatment was long fermentation (24, 36, and 48 hours) at a salt concentration of 30%. The parameters observed were water content, salt content, protein, fat, and amino acids. The research results showed that the treatment given significantly affected water content, salt content, protein, fat, and amino acids. The best treatment is a fermentation period of 36 hours.
Monitoring Coastal Line Changes Using the Digital Shoreline Analysis System (DSAS) Method in the Coastal Area of Mekkatta Village, Mejene Regency
Analysis of coastline changes in Mekkata Village from 2013 to 2023 was conducted using the baseline of the nearest coastline to the mainland. This baseline was used as a reference point for transects measuring changes. The shoreline encompasses the coastline during the research period. Net Shoreline Movement (NSM) was employed to differentiate between erosion and accretion in the study area, showing an average shoreline change value of -9.72 meters towards the mainland, indicating predominant erosion. According to DSAS, it is observed that the coastline of Mekkata Village experienced erosion along 41 transects, while 31 transects exhibited accretion, highlighting significant changes. The most notable erosion area was identified along transects 60, 61, and 62, indicating consistent land reduction. Meanwhile, the most accretion-prone transects were 11, 12, and 13, signifying substantial land addition. The predominant erosion process is suspected to be influenced by the gentle slope of the coastal area and the composition of sand material. Human activities such as deforestation and river mouths also contribute to erosion. The absence of coastal protection structures allows direct waves and currents to impact the shore, potentially causing erosion. Meanwhile, accretion areas around river mouths indicate the formation of emergent land or deltas.
Copyright (c) 2023 Jurnal IPTEKS Pemanfaatan Sumberdaya Perikanan https://creativecommons.org/licenses/by/4.0
Scenario of Scleractinian Larva Dispersal in Sulawesi Waters From A Hydrodynamic Modeling Perspective
Scleractinian coral such as Lobophyllia corymbosa that reproduce by external fertilization have an extended planktonic phase in their life cycle during which they "drift" in the water column. This life cycle phase is an advantage in itself because it increases the capacity of propagules to disperse far from their place of origin. In this hydrodynamic model study, secondary data on bathymetry and tides for the western monsoon period (represented by November 2017) were input into the Surface Water Modelling System SMS 8.1 to simulate the surface current circulation model. In running this program there are 2 important stages, namely GFGEN (Geometry File Generation) and RMA2 (Resources Management Associates-2). The simulation of surface current direction during the west monsoon, which is the reproductive period of L. corymbosa in Indonesia, shows the complexity and distraction of current vectors that occur in the coastal waters around Sulawesi Island. The model results indicate the possibility of spatial and temporal biological networks forming in waters around Sulawesi. The current patterns forming in Sulawesi waters during the west monsoon tend to circulate from north to south due to the higher volume of water mass originating from the Pacific Ocean flowing to the southern part of Sulawesi which is also the entry point for the Indonesian Throughflow (ITF). The larval dispersion model scenario produced for each location (Manado, Toli-Toli, Palu, Mamuju, Spermonde, Sinjai, Wakatobi, and Luwuk Banggai) tended to follow the water movement patterns, with most propagules leaving the location where they were spawned.
The Application of Remote Sensing and Geographic Information System for Monitoring Changes in Mangrove Forest Area in Torosiaje Village
This study aimed to analyze the changes in the area of mangrove forests over the last 5 years (starting from 2019-2023) and formulate management strategy directions for those damaged in Torosiaje Village, Popayato District, Pohuwato Regency. The method used was image interpretation and interviews. Landsat 8 image interpretation method for changes in mangrove cover area over the last 5 years. Methods of interviewing and filling out questionnaires to related agencies and the local community in Torosiaje Village. Data analysis used SWOT analysis to determine the strategic direction for mangrove management. The result of the image interpretation showed that the area of mangrove forest in Torosiaje Village in 2020 saw a reduction in the area of 1.04 Ha from 2019. In 2021, there was an increase in the area of 1.68 Ha since 2020, and in 2022, there was another increase of 1.68 Ha. 3.13 Ha since 2021, and in 2023, there was another increase of 6.86 Ha since 2022. Meanwhile, the results of the priority analysis of mangrove ecosystem management strategies in Torosiaje Village are based on the results of the analysis carried out; 3 things become tactical decisions for recommendations in management efforts regarding the mangrove ecosystem, such as increasing public knowledge and awareness about the function of the mangrove ecosystem as well as the skill of the community around the mangrove area, strengthening the institutional management of the mangrove ecosystem area and Torosiaje tourism, creating a waste and waste processing system
Analysis of The Use of Rice Washing Water and Fermented Cassava Peel Waste on Population Growth of Daphnia Magna
Daphnia magna is a potential natural food source due to its nutritional content. The availability of Daphnia magna is not always consistent, posing a challenge to fish cultivation. An alternative solution is to use rice wash water and fermented cassava peel waste as a source of nutrition for Daphnia magna. Rice wash water contains soluble nutrients, while fermented cassava peel waste is rich in nutrients from the fermentation process. This research was conducted in the Fisheries Cultivation Laboratory, 1st Floor, Universitas Muhammadiyah Gresik, in April-May 2023. The research method employed was experimental with five treatments and three replications. P1= 0% rice wash water, 100% fermented cassava peel; P2= 25% rice wash water, 75% fermented cassava peel; P3= 50% rice wash water, 50% fermented cassava peel; P4= 75% rice wash water, 25% fermented cassava peel; P5= 100% rice wash water, 0% fermented cassava peel. Data analysis used analysis of variance and least significant difference test. The results showed that treatment P3 had the highest population density with an average of 2578 individuals. Additionally, treatment P3 also yielded the highest growth rate of Daphnia magna, reaching a value of 28.35. The population distribution across all treatments predominantly showed the total length class <100µm. Overall, the water quality within the temperature range of 26-28°C and pH range of 6.5-8 indicated optimal conditions for the growth of Daphnia magna.
ANALYSIS OF PREVALENCY, INTENSITY, AND CORELATION OF PARASITE WITH ENVIRONMENTAL CONDITIONS IN MILKFISH (Chanos chanos) IN TRADITIONAL POLYCULTURE PONDS OF KEDANYANG VILLAGE
This study aimed to examine the relationship between parasite prevalence in milkfish and water quality in the Traditional Fishponds of Kedanyang Village, Gresik Regency. The research was conducted for one month in April 2023. Random samples of milkfish were taken from two ponds, with a total of 40 fish. Parasite examination was performed by observing ectoparasites on mucus, gills, fins, and scales, as well as endoparasites in the fish's internal organs. The identification results revealed the presence of two types of parasites in the traditional polyculture ponds of Kedanyang Village, namely Dactylogyrus found in the gills and Cappilaria sp. found in the digestive tract. The prevalence and intensity of these parasites ranged from 2.5% to 5% and 1-2, respectively, which can be classified as low. The water quality in the ponds was categorized as good and well-tolerated by the fish. Correlation analysis showed that temperature, salinity, ammonia, nitrite, and nitrate had a weak positive relationship with parasite prevalence, while pH, dissolved oxygen (DO), and biochemical oxygen demand (BOD) had a weak negative relationship.
Marketing Effectiveness of Akropora Decorative Coral (Acropora Sp.) at PT. Agung Aquatic Marine, Badung Bali
Coral reefs are marine biota that reproduce by budding and fertilization, making them natural resources aquarium consumers in Europe, America, and Asia are very interested in. Since Indonesia is the largest tropical nation producing sponges, there is an increasing need for imported products. Consequently, it may be inferred whether marketing can be carried out effectively as planned or targeted in accordance with the targets that the organization has established. This study uses descriptive qualitative analysis to investigate the marketing strategies and efficiency of Akropora decorative corals (Acropora sp) at PT. Agung Aquatic Marine in Badung, Bali. Additionally, PT. Agung Aquatic Marine's marketing efforts are deemed successful because the business's target may be met and ornamental coral sales keep rising each month. In addition, the marketing carried out by PT Agung Aquatic Marine is considered effective because the sale of ornamental corals continues to increase every month and can achieve the company's target.
Trend of Production and Income of Hand Line Fishermen in Tulehu Village, Central Maluku District
Hand line fishing business can contribute to fishermen's income. Still, this business is faced with risks and uncertainties in the amount of production, one of the factors causing it is the seasonal factor. The uncertainty of the amount of production will affect the amount of income fishermen receive. This study aimed to determine the production and income trends of hand-line fishermen in Tulehu Village, Central Maluku Regency, from September to December 2022. Primary data were collected through interviews with ten fishermen and analyzed using the business income equation. The results showed that the highest level of tuna (Thunnus sp) production in December was 690kg and the lowest in September was 299kg, while the highest income was IDR26.682.084 in December and the lowest was IDR11.850.084 in September.
The Influence of Ocean Current Patterns on Surface Marine Debris Distribution In Makassar City Waters
A survey of the abundance and distribution of macro debris (>2.5 - <100 cm) and meso-debris (>0.5 – <2.5 cm) has been carried out in Makassar City waters. This research was carried out to map the distribution of surface marine debris following ocean current patterns. The macro debris abundance range is 2222-17222 items/km2 and the meso-debris range is 2222-30556 items/km2, with the dominance of 47,03% plastic debris for macro sizes and 49,74% wood debris for meso-sizes. The highest abundance was found at the Jeneberang estuary, then at the Losari Coastal Waters and the lowest at the mouth of the Tallo River. The current pattern in Makassar City waters at low or high tide tends to move from north to south towards the Jeneberang River estuary, with the current speed getting southern and slower. This condition causes a high abundance of macro and meso debris at the mouth of the Jeneberang River.
Spatial and Temporal Distribution of Skipjack and Little Tuna in Fisheries Management Area 713
Indonesian Fisheries Management Area (IFMA) 713 is a strategic and potential area for utilizing large pelagic fishery resources. In general, there are no fixed fishing grounds for large pelagic fish, and they are always changing and moving following the movement of environmental conditions, which naturally causes fish to choose a more suitable habitat. This study examines the distribution and abundance of skipjack tuna (Katsuwonus pelamis) and little tuna (Euthynnus sp) in relation to oceanographic conditions such as the distribution of sea surface temperature and sea surface chlorophyll-a concentrations in Indonesian Fisheries Management Area 713, which includes the Makassar Strait, Flores Sea, and Bone Bay. Based on the findings, skipjack tuna tends to be caught at warmer temperatures and higher chlorophyll-a concentrations than little tuna. Skipjack tuna tended to be distributed at a temperature of 29.84°C-30.28°C, which was associated with a chlorophyll-a concentration of 0.3 mg m-3, in contrast to little tuna, which was distributed at a temperature of 27.92°C-28.66°C with the most productive chlorophyll-a concentration (relatively high CPUE) of 0.2 mg m-3. This information on habitat distribution and optimum conditions of oceanographic parameters is very useful for the sustainable management of skipjack tuna and little tuna in the IFMA 713. in contrast to little tuna, which was distributed at a temperature of 27.92°C-28.66°C with the most productive chlorophyll-a concentration (relatively high CPUE) of 0.2 mg m-3. This information on habitat distribution and optimum conditions of oceanographic parameters is very useful for the sustainable management of skipjack tuna and little tuna in the IFMA 713. in contrast to little tuna, which was distributed at a temperature of 27.92°C-28.66°C with the most productive chlorophyll-a concentration (relatively high CPUE) of 0.2 mg m-3. This information on habitat distribution and optimum conditions of oceanographic parameters is very useful for the sustainable management of skipjack tuna and little tuna in the IFMA 713.
Sardine (Sardinella sp.) Quality Based on Organoleptic Tests in Atapupu Waters, Belu Regency, East Nusa Tenggara
One of the fish handling techniques needed to maintain fish freshness is the cold chain application. Cold chain system is very important to be applied in the post-catch handling process to extend the fish rigor mortis phase. Fishermen and fishmongers are people who play an important role in maintaining fish freshness. The purpose of this study was to determine the fresh sardine organoleptic quality after catching until reaching consumers or initial selling. The method used is a survey method through on board direct fish handling activity observation conducted by fishermen and fishmongers at selling locations, as well as fish organoleptic tests using score sheets for fresh fish with observations based on transit time starting from fishing vessel after catching, collectors, fishmongers to the first consumers. Organoleptic quality measurement of sardine taken from fishmongers in Atapupu waters showed that sardine quality fitted for consumption with an organoleptic value of >7.
Daniel Candido Da Costa Soares Costa Soares
SOCIAL ECONOMIC ANALYSIS OF ILLEGAL FISHING FISHERS IN SPERMONDE ISLAND
The sustainable use of fish resources is closely related to fishing practices by fishermen. It is a classic problem that utilizing marine and fishery resources, the exploitation method carried out by fishermen often does not consider environmental sustainability aspects or is contrary to the principles of responsible fisheries management (Code of Conduct for Responsible Fisheries - CCRF). This study aims to examine IUU fishing activities from the socio-economic dimension, which under certain conditions will produce its own understanding, especially when it comes to traditional rights, resource share allocation, and the level of dependence on fishery resources. The type of research is qualitative research with a case study method. Data collection techniques are observation, interviews, and literature study. The data collected includes primary data and secondary data. The data analysis technique used is the content analysis method through the stages of data reduction, data presentation, and drawing conclusions. The results of this study indicate that illegal fishing that occurs in the Spermonde Islands is dominant due to the pressure to fulfill economic needs, other factors are the low understanding of the importance of sustainable use of fishery resources; increasing demand for foreign markets, especially live fish; and inconsistency and weak law enforcement in preventing the use of explosives and drugs. Empirical data on resource potential is required and integrated into policy formulation in the form of responsible fisheries, including other activities that can be done by fishermen as alternative livelihoods, and ecosystem approaches for conservation and management of fish stocks of related species.
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A PROFIT SHARING SYSTEM OF HAND LINE FISHERMEN AT HILA VILLAGE CENTRAL MALUKU DISTRICT
Income of hand line fisherman very dependent on the influence of nature and the existence of a working relationship between boat owners and labor fishermen in fishing operations. This study aims to analyze the profit-sharing and income-sharing system of hand line fishermen at Hila Village, Central Maluku District. Primary data was collected through interviews with 6 fishermen and analyzed using the business income equation and profit sharing system as well as the amount of income earned by fishermen. The results showed that hand line business income of Rp23.093.023/month and the application of the profitsharing system is 1:3 for owner fishermen, boats and 1 crew member. However, the boats's share becomes the property of the owner fisherman, so the owner fisherman gets 2 shares and the crew gets 1 share. The income obtained based on the profit sharing system is the owner of Rp15.393.349/month and the crew of Rp7.697.674/month.
The Preferency and Chemical Characteristics of Stick Products Fortification of Suckermouth Catfish Flour (Pterygoplichthys pardalis)
Suckermouth catfish (Pterygoplichthys pardalis) are found in Lake Tempe, Wajo Regency, but their existence has not been utilized so far and is even considered the cause of the loss of several endemic fish species in the lake. This study aims to determine the chemical characteristics and the preference level of sticks fortified with Suckermouth catfish (Pterygoplichthys pardalis) meal as an effort to utilize these fish. The research method used was experimental with treatment of SK (control without adding Suckermouth catfish flour), S1 (addition of 10 g of Suckermouth catfish flour), S2 (addition of 20 g of Suckermouth catfish flour), and S3 (addition of 30 g of Suckermouth catfish flour). The parameters observed were moisture, protein, fat, carbohydrate, and ash content, and the level of preference (hedonic test). The results showed that the panelists tended to say they really like the appearance and flavour of the stick S1 product, and very much like the taste and texture of the stick S3 product. The highest protein and water content was in S3 treatment, the highest ash and carbohydrate content was in SK treatment, and the highest fat content was in S1 treatment
ANALYSIS OF THE CYSTOCARP DEVELOPMENT OF SEAWEED (Kappaphycus alvarezii) ON MEDIA ENRICHED WITH A COMBINATION OF NITROGEN AND PHOSPHATE
Seaweed (Kappaphycus alvarezii), in terms of providing seeds in cultivation activities, is still carried out vegetatively, namely cutting the thallus (cuttings), which is then cultivated until it is ready to be harvested (Rao & Reddy, 1997). However, such a method will experience problems, especially the provision of quality seeds on a large scale, and it does not depend on the season. The possible alternative to do is by generative seeding method. K. alvarezii can be developed for cultivation by utilizing the nature of generative reproduction through the development of carpospores, characterised by cystocarps on the surface of the thallus. However, the cystocarp that has been formed needs nutrients in the development process to produce spores of good quality and quantity. Nutrients that are needed to support cystocarp development include nitrogen and phosphate. The benefits of nitrogen and phosphate for seaweed growth cannot be replaced with other elements. This is due to the role of nitrogen as a constituent of protein and phosphate as an energy provider. This study aimed to determine the optimum nitrogen and phosphate enrichment ratio for cystocarp development. The research was carried out from November 2018 to February 2019 at the Seaweed Laboratory of the Takalar Brackish Aquaculture Fisheries Center (BPBAPT). The research location is Mappakalompo Village, Galesong District, Takalar Regency, South Sulawesi Province. They were analyzed at the water quality laboratory of Hasanuddin University to analyse the N and P content in the media. There were 6 treatments with 3 replications each, namely Treatment A: Without enrichment (SW), Treatment B: 1N=0.5 ppm: 1P=0.5 ppm, Treatment C: 2N=1 ppm: 1P= 0,5 ppm, Treatment D : 3N=1,5 ppm : 1P=0,5 ppm, Treatment E : 1N=0,5 ppm: 2P = 1 ppm, and Treatment F : 1N=0,5 ppm : 3P = 1.5 ppm. The results showed that the development of a shorter cystocarp phase was found in treatment D, which was 14 days. Meanwhile, treatment with a long time of 17 days occurred in treatment A (SW).
Macrozoobentos Community Structure at Ecoshrimp Reservoir Pond, Waetuoe Village, Lanrisang District, Pinrang Regency
Mollusc has great commercial benefits in capture fisheries and aquaculture. However, it can also cause economic losses and human suffering. Some macrozoobenthos of the mollusc species are intermediate hosts for parasites and pests in aquaculture pond systems. The reservoir in the pond is a sedimentation area and a biofilter to optimize water quality before flowing into the pond. This study aims to analyze macrozoobenthos community structure at the ecoshrimp reservoir pond located in Waetuoe Village, Lanrisang District, Pinrang. Macrozoobenthos sampling was carried out using a 1x1 m quadrant-transect. The results showed that the identified molluscs consisted of eight species grouped into four families and two classes, including Gastropods and Bivalves. The abundance of macrozoobenthos at the pond's edge was smaller than those in the middle part (994 individuals vs. 1095 individuals). Sermyla requtii was the species with the highest density of 350 ind/m2 at the edge and 670 ind/m2 in the middle of the reservoir. The frequency of occurrence of macrozoobenthos at both observation sites has a value of > 25%. The diversity index at the edge of the reservoir (1.7015) and in the middle of the reservoir (1.2533) is relatively moderate. The uniformity index value at the edge of the reservoir (1.8620) and in the middle of the reservoir (1.3715) is relatively high. The dominance index value at the edge of the reservoir (0.2192) and in the middle of the reservoir (0.4124) is relatively low. The particle size analysis shows that the sediment type in the reservoir is medium sand with an average median value (d50) of 0.29 mm.