TORANI: Journal of Fisheries and Marine Science
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149 research outputs found
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Population Dynamics of Jinga Shrimp (Metapenaeus affinis) in Samboja Kuala Waters Kutai Kartanegara Regency
Full text linkPink shrimp (Metapenaeus affinis) or Jinga shrimp is one of the species caught in the waters off Samboja Kuala. This catch is a valuable commodity in the market. The possibility of exploiting shrimp resources will be jeopardized in an effort to conserve, utilize, and catch high intensity shrimp. This study was conducted from September to December 2022 with the aim of determining population dynamics parameters using the frequency method from carapace length data. A mini trawl was used to collect shrimp in the waters of Samboja Kuala, Kutai Kartanegara Regency. Male and female jinga shrimp have a ratio of 1:2,43. Furthermore, for male and female shrimp, the growth rate coefficient (K) was 0,580 and 14,00, respectively, and the approximated natural length (L) was 145.82 and 160.81. Pink shrimp (Metapenaeus affinis) have natural mortality (M) of 1,113/year, mortality due to capture (F) of 0,516, and total mortality (Z) of 1,630, with exploitation value (E) of 0,316, indicating that they are still at the appropriate level. Herefore, female shrimp peaked in August at 14,6% and males peaked in July 31,81%. The Y/R capability was 0,049/year, and Emax calculated the Y/R relationship with the exploitation rate, which was 0,42
Social Study of Tourism Perceptions in Idaman Mangrove Ecotourism of Balang Baru Village, Tarowang District, Jeneponto Regency
Full text linkThis study aims to analyze the perceptions of visitors towards the existence of the Idaman Mangrove Ecotourism object. This research is a survey research using qualitative and quantitative approaches using questionnaire tools. This study was survey research by a qualitative and quantitative approach using a questionnaire tool. This research was done in Idaman Mangrove Ecotourism (IME) in Balang Baru Village, Tarowang District, Jeneponto Regency, South Sulawesi, Indonesia, from June to August 2020. The Non-physical aspects used the linear time function method for the tourists visiting IME. The number of visitor respondents was 40. The data were analyzed for social aspects towards perceptions of tourism using a Likert scale. The research results indicated that tourism perception belongs to the excellent category with 60%. The existence of mangrove ecotourism shows something unique and has a nature-based attraction, adequate facilities and infrastructure, and the comfort of activities that are good enough to meet the wishes of visitors
The Utilization of Pangas Catfish Fish Skin (Pangasius pangasius) in Making Skin Chips
Full text linkCatfish is a popular freshwater fish and is in great demand as a consumption fish because catfish meat has a delicious taste and is quite high in calories and protein. Catfish skin as a by-product of fillet production can be used as raw material for processing chips. This research aims to determine the effect of soaking ingredients on the physical and chemical characteristics of catfish skin chips. This research was carried out by making catfish skin chips through the process of first washing, first soaking with soaking materials, second washing, second soaking in spices, drying, cutting, frying, and packed. The treatment in this research is the soaking material (in the first soaking) used. There were 4 treatments with different soaking ingredients, including: P0 (control), P1 (lime), P2 (acetic acid/vinegar), and P3 (palm vinegar). After the skin chips with the 4 treatments have been produced, quality testing is carried out on the product. Tests were carried out on yield, consumer acceptability through hedonic testing, physical characteristics of skin chips through analysis of crispness, efflorescence and oil absorption, chemical characteristics through proximate analysis, and microbial contamination through ALT analysis. Treatment P1 is known to have the highest yield, crispness, oil absorption capacity, and efflorescence ability among other treatments. Next, the products tested for chemical content are selected based on the treatment that obtains the highest level of consumer acceptance. Based on hedonic testing, it is known that P1 is the treatment most sought after by consumers. From the results of the chemical analysis that has been carried out, the ash content and protein content of fish skin chips in P1 is higher than P0, but has a lower water content than P0. The Total Plate Number (ALT) value for each catfish skin chips parameter exceeds the standard limit of SNI 7388:2009, namely 5x105 CFU/g
Analysis of Heavy Metals in Shellfish, Sediment, and Waters in Seagrass beds Ecosystem in Selangan Village, Bontang City
Full text linkSelangan Hamlet is a water area in Bontang City where community activities are very active. Bontang City is an area that has a high utilization of coastal areas such as tourism, cultivation, trade, sea transportation services, and industrial areas. The impact of the industrial area on these waters is the contamination of these waters with heavy metals which will have an impact on aquatic organisms and the surrounding community who ultiize these waters. The purpose of this study was to identify the content of heavy metals lead (Pb), copper (Cu), magnesium (Mg), iron (Fe), and mercury (Hg). This research was conducted in January-June 2023 in Bontang waters, Selangan Hamlet. Sampling involyes analyzing water quality and testing heavy metals such as Cu, Pb, Fe, Mg, and Hg. The samples to be analyzed are water, sediment, seagrass and blood clams. The results of the analysis obtained in these waters, at the four stations, namely the south, east, west and north stations. At all stations in the heavy metal test Cu, Pb, Fe, Mg and Hg heavy metal content is only found in blood clams (Anadara granosa). In water, sediment and seagrass, the values obtained are still in normal conditions
Condition and Management Strategy of Coral Ecosystem in Kedindingan Island, Bontang City
Full text linkKedindingan Island is one of the Marine Conservation areas in East Kalimantan Province with rich natural resource. This study aims to determine the extent of coral distribution and health, determine the health condition of live coral cover and to formulate management strategies in Kedindingan Island for the realization of sustainable coral management. The results of the analysis using Landsat 8 imagery showed live coral was 55.44 Ha in 2015 and 48.06 Ha in 2022. Love coral cover in stations 1,2, and 4 were in good category i.e. 52,53$, 53,6%, and 60,34%, respectively . whilst in station 3 31,34% was moderate category. There are three priority management strategies for coral ecosystem management in Kedindingan Island, the first is to create a team in each region consisting of policy makers, academics, and the community, the second is to increase the role of NGOs and local communities in monitoring and supervising coral ecosystems, and the third is to improve management and develop rehabilitation methods and monitor corals regularly in Kedindingan Island
Optimization of Service Factors in PPI Tanjung Limau Bontang in Supporting Fishing Activites
Full text linkUtilization and optimization of service facilities at the PPI Tanjung Limau Bontang in supporting fishing businesses and strategies for developing service facilities in increasing fishing business activities that utilize the PPI Tanjung Limau Bontang. In this regard, an analysis is carried out to achieve priority alternative strategies. So that the achievement of service optimization can be carried out properly and sustainably. The aim of the study was to analyze the optimization of the utilization of available facilities and to analyze the strategy for optimizing the PPI Tanjung Limau to be applied in developing services under current conditions. the results of calculating the optimal utilization of service facilities, namely the TPI Building, Mooring Pier, Port Administration Office, Meeting Hall, Guard Post, IPAL, Kiosk or Shop and Parking Area. Meanwhile, service facilities whose utilization rate is not optimal are land 87%, Wharf unloading 50%, SPBN 80%, clean water tank 66.67%, electrical installation 20.67%, MCK (toilet) 66.67%, shipping lanes 65, 38% and anchorage pond 19.43%. The results of the SWOT analysis showed that the coordinate X value on the Cartesius diagram 0.77 and the coordinate Y 0.36 and the implementation of the strategy S-O (Strength-opportunity)
Social Economic Mapping of Tilapia Farmer Communities at Lengkong Kulon Village Sindangwangi District Majalengka Regency
Full text linkThis study aims to compile socio-economic mapping and analyze socio-economic factors that influence tilapia farmer communities. The research was conducted from January 2023 to March 2023 in Lengkong Kulon Village, Sindangwangi District, Majalengka Regency. The method used is the survey method. Sampling using the purposive sampling technique was analyzed with descriptive qualitative. The results of the mapping are grouped into two aspects, namely social conditions and economic conditions. The social condition of fish farmers is that they are of productive age with a low level of education. Livelihoods as fish farmers are part-time. The aquaculture business is mostly done by men as breadwinners, while women play a role in carrying out domestic activities, the role of women in fish farming is only to help provide feed. The social stratification of the fish farmer community is in the lower strata as ordinary people. Farmers generally have a strong kinship based on family ties. The economic conditions of most fish farmers have income that is in the low category, which is less than IDR 5,000,000 per month. Social factors that hinder fish farming in developing their business are lack of counseling, lack of training, and livelihoods as fish farmers are part-time so they are not serious about carrying out the fish farming business. The economic factors that hinder fish farmers are the high prices of feed and seeds
Risk Analysis of Fresh Lemuru Fish Supply Chain at Banyuwangi Port
Full text linkThe abundance of lemuru fishery products around Coastal Fisheries Port in Muncar has led to the growth of a processing industry cluster made from lemuru fish which produces canned fish (sardines, tuna), fish flour and oil as well as frozen fish around Muncar port. Factories or industries whose raw materials require a large amount of money to move materials that are easily damaged will tend to choose their industrial locations around sources of raw materials. This shows that Indonesian people are aware of the nutritional contribution of consuming fish. The amount of production and consumption of this fish is also influenced by the season and weather so that the supply of caught fish is uncertain but the demand for fish is always increasing. Apart from that, other risks are inaccurate knowledge of fish handling, the distribution of caught fish that takes too long affects the decrease in the quality of fresh caught fish and the selling price of caught fish. Flying fish at Muncar Fishery Port is very dependent on the fishing season, so the availability of supplies fluctuates. The purpose of this study was to identify the supply chain structure and supply chain risks for lemuru at Muncar Fishery Port, analyze the highest risk factors in the lemuru supply chain at Muncar Fishery Port at each tier of fishermen, collectors and traders and recommends supply chain risk mitigation for lemuru fish for each tier at the Muncar Fishery Port based on risk identification
Recommendations for Effective Co-Management Model of Small-Scale Grouper (Serranidae) Fishery in South Sulawesi Province
Full text linkGovernance (policy) that regulates fisheries resources needs to involve industry in the supply chain (market) and small-scale grouper fishermen (community) within a co-management framework so that management is more effective while simultaneously supporting the Fisheries Improvement Project (FIP) which is driven by various parties globally (Conservation Alliance, 2021). This study aims to recommend a small-scale grouper fishery co-management model to be carried out in South Sulawesi Province. This study diagnoses the readiness (enabling condition) and willingness (motivation) of stakeholders so that they can be applied and implemented consistently (implementation). The results of this study indicate that the main approaches and strategies for the co-management model of small-scale grouper fisheries include (a) Optimizing the role of the market that promotes traceability and improving governance through a supply chain approach, (b) Synergy and synchronization of the role of government at all levels through an approach technocratic, (c) Strengthening fishermen and local institutions through a participatory approach, (d) Gathering multi-stakeholder support and collaboration through a collaborative approach. The recommended roadmap for small-scale grouper co-management in South Sulawesi Province includes three main stages, namely: (a) Initiation Stage: Commitment, Support, and Organizing, (b) Acceleration Stage: Joint Committee and Co-management Prototype, and (c) Stage Institutionalization: Scaling up and Organizing Fishermen\u27s Forums
The Catch of Little Tuna (Euthynnus sp.) in Relation to Thermal Front in the Makassar Strait
Full text linkThe Makassar Strait waters area is a potential area for the utilization of marine fishery resources in Indonesia especially for large pelagic fisheries because it is one of the migration trajectories of little tuna (Euthynnus sp.). In order to optimally utilize tuna resources, remote sensing technology based on oceanographic satellite imagery can be relied upon to facilitate identification, prediction, and spatial and temporal mapping of potential fishing areas. This study aims to study the phenomenon of oceanography (thermal front) as an indicator of potential for little tuna fishing areas in the Makassar Strait. Primary data was obtained through in-situ data collection (direct observation in the field by following fishing operations using the purse seine, while secondary data consisting of oceanographic data such as sea surface temperature and sea surface chlorophyll-a concentrations sourced from satellite imagery data (Aqua satellite with MODIS sensor). The distribution of the thermal front was analyzed using ArcGIS 10.4 software to determine the relationship between little tuna fishing productivity and the oceanographic phenomenon. Based on the analysis results, total of 61 positions for little tuna fishing using a purse seine, five (5) fishing positions were in the thermal front area, where the catch of little tuna is higher than the average catch outside the area. These results indicate that the thermal front can be used as an indicator of potential for little tuna fishing areas in the Makassar Strait