Barakuda 45: Jurnal Ilmu Perikanan dan Kelautan

Changes In Mangrove Land Area Using Landsat 8 Satellite Images In Blanakan Bay In 2018-2022

2025-11-07T03:41:26+00:00

Mangrove forests in Subang Regency have experienced changes in area coverage due to the expansion of aquaculture ponds and coastal abrasion. This study aims to analyze the changes in mangrove area and density in Blanakan Bay, Subang Regency, during the period 2018–2022 using Landsat 8 satellite imagery. The method employed is a survey approach utilizing multispectral classification. The main assumption of this study is that changes in mangrove coverage can be observed through multitemporal satellite imagery that has undergone geometric and radiometric correction. The digitized Landsat images were overlaid to identify spatial changes in mangrove cover 2018-2022. Spatial analysis was conducted using Supervised Classification techniques and the Normalized Difference Vegetation Index (NDVI) to classify mangrove areas based on their density levels. The results showed that the mangrove area in 2018 was 553.2 hectares, which decreased to 384.2 hectares in 2022, indicating a reduction of 169 hectares.

Analysis Of The Added Value Of Bawis Fish Chips Products In Poklahsar Saputra Snack City Bontang

2025-11-07T03:38:24+00:00

Bontang City, located in East Kalimantan Province, has a larger marine area than land area, offering significant potential in marine fisheries resources. One of the abundant yet undervalued marine commodities is bawis fish (Gerres sp.), which remains economically underutilized. This low economic value presents a challenge, particularly for coastal communities that depend on the fisheries sector for their livelihoods. Increasing the added value of bawis fish through processing into higher-value products is therefore essential. One such initiative is the production of bawis fish chips, developed by the Processing and Marketing Group (Poklahsar) Saputra Snack, led by a local entrepreneur in Bontang. This study aims to assess the economic value added from bawis fish chips using the Hayami value-added analysis method. The findings indicate that the product yields an added value of IDR 27,151 per kilogram, with a value-added ratio of 37%. This implies that for each kilogram of raw bawis fish processed, an additional economic value of IDR 27,151 is generated. Based on the Hayami criteria, this level of value addition is classified as moderate (15%–40%). The results suggest that processing bawis fish into chips has the potential to serve as an effective strategy for enhancing the economic well-being of small-scale fishery enterprises.

Comparison Between Feeding Bloodworms And Artificial Feed On The Rate Of Growth Of Nirwana Fish (Oreochromis Niloticus) In Tanjungsari, West Java

2025-11-07T03:39:56+00:00

The growth of Nirwana tilapia (Oreochromis niloticus) is strongly influenced by feed and environmental conditions in aquaculture systems. In Indonesia, tilapia productivity is often constrained by feed efficiency and fluctuating water quality. Natural feed such as bloodworms (Chironomus sp.) contains high protein levels that support length growth, while pellets provide complete nutrients for weight gain. This study aimed to evaluate the effects of bloodworms, pellets, and their combination on the growth performance of Nirwana tilapia fingerlings, as well as on water quality (temperature, pH, dissolved oxygen, and ammonia). A Completely Randomized Design (CRD) was applied with three treatments: A (15% bloodworms), B (5% pellets), and C (a combination of 7.5% bloodworms + 2.5% pellets), each with four replications. The fingerlings measured 3–4 cm and were approximately two months old, reared over a period of 50 days. The results showed that all treatments led to increases in weight and length; however, based on analysis of variance (ANOVA), there were no significant differences (p > 0.05) in all growth parameters: weight gain (2.20–2.22 g), length gain (1.32–1.48 cm), specific growth rate (2.41–2.66%/day), daily weight gain (2.73–2.85%/day), and daily length growth (0.0196–0.0210 cm/day). Descriptively, treatment B yielded the highest weight, while treatment A had the highest daily length growth. Water quality remained within optimal ranges (25.5°C temperature, pH 8.2–8.3, DO 4.5–4.7 mg/L, ammonia 0.00–0.01 mg/L). Bloodworms were more effective in stimulating length growth, whereas the feed combination was more efficient in increasing body weight. This study contributes to the development of alternative feed formulations and provides practical recommendations to enhance aquaculture productivity efficiently, sustainably, and in an environmentally friendly manner.

The Impact Of Trade Facilitation On Seaweed Exports In Indonesia

2025-11-03T02:04:06+00:00

Indonesia has great potential in seaweed exports, but its utilization was still not optimal due to various barriers in the trade system. This study aimed to analyze the development of Indonesian seaweed exports to seven main destination countries during 2013–2023, assess the condition of the trade facilitation index, and examine the influence of these variables on exports. The method used was a quantitative approach with a gravity model and panel data. The research results showed that the GDP of destination countries and the quality of trade and transport infrastructure had a positive and significant effect on Indonesia's seaweed exports. Conversely, Indonesia's GDP, logistics competence, and customs efficiency did not have a significant effect. The corruption perception index showed a significant negative effect on exports. These findings confirmed that external factors such as the purchasing power of destination countries and the quality of infrastructure had a major influence, while internal factors such as corruption were a major obstacle. Therefore, export enhancement strategies should be focused on trade governance reforms, strengthening export infrastructure, and developing markets in countries with high trade facilitation indices.

Microplastic Pollution In The Aquaculture Field: A Mini Review

2025-11-07T03:31:04+00:00

Plastic pollution has become pervasive in aquatic environments, emerging as a significant ecological concern over the past decade. Plastic debris varies in size, from large fragments to microplastics—particles less than 5 mm in diameter—that result from the primary (manufacturing production) and secondary (degradation from larger plastics) sources. In aquaculture systems, these microplastics can accumulate in both the environment and within aquatic organisms, as their decomposition is a prolonged process. The persistence of microplastics poses risks to biota, including potential physical harm and chemical exposure. This review discusses current research on the presence and impact of microplastics in aquaculture, highlighting the negative effects observed. The findings indicate that microplastics represent an escalating threat to aquaculture systems, necessitating periodic monitoring and the standardisation of analytical methods to manage and mitigate their impact effectively.

Utilization of Mangosteen Extract to Enhance the Masculinization of Striped Snakehead (Channa striata) Fingerlings

2025-11-07T03:35:49+00:00

Aquaculture technology to increase productivity includes sex reversal or masculinization. Masculinization of snakehead fish (Channa striata) is essential to balance the male sex ratio for sustainable aquaculture. One approach is the use of natural compounds to reduce dependence on synthetic hormones that are less environmentally friendly. Natural substances such as mangosteen peel extract (Garcinia mangostana) contain aromatase inhibitors. This study aimed to determine the optimal dosage of mangosteen peel extract for inducing sex reversal in snakehead fish. Two-week-old fry were immersed in different treatments (control 0 g/L, 0.5 g/L, 0.7 g/L, and 0.9 g/L) for 4 hours and reared for 2 months. Gonads were examined microscopically using aceto-carmine staining. Results showed that the highest male proportion was obtained at 0.9 g/L, while the highest survival rate was recorded at 0.7 g/L. The Kruskal–Wallis test (H=7.64; p=0.054) indicated no significant differences among treatments in male proportion. The Mann–Whitney U test (p=0.077) between control and each treatment confirmed that formal differences were not significant, although a trend of increased male proportion was observed across all treatments. One-way ANOVA (F=16.72; p=0.0008) demonstrated that treatment doses significantly affected survival. Tukey HSD revealed that all treatments differed significantly from control (p<0.05), while no significant differences occurred among treatment doses (p>0.05). In conclusion, doses of 0.5–0.9 g/L were effective in promoting masculinization while maintaining optimal survival in snakehead fish.

Development Model of Talikor as Cultural Heritage and Ecotourism for Economic Improvement and Cultural Preservation of Duan Lolat

2025-11-07T03:34:05+00:00

The traditional fishing practice of Talikor is an integral cultural heritage for the Duan Lolat community in the Tanimbar Islands Regency, but it now faces the threat of degradation due to modernization. This research addresses the dual challenges of cultural practice erosion and the need for sustainable economic opportunities for the local community. Its main objective is to develop and empirically validate an integrative model to revitalize Talikor as a sustainable community-based ecotourism initiative. Adopting a mixed-methods design, this study collected data through surveys (N=100), in-depth interviews, and Focus Group Discussions (FGDs). Quantitative data analysis was conducted using Partial Least Squares Structural Equation Modeling (PLS-SEM) to test the causal relationships within the proposed model. The main findings show overwhelming community support, with 95% of respondents agreeing to the development of Talikor ecotourism. The statistically validated model was able to explain 68.89% of the variance in the model's sustainability (R^2 = 0.6889). The strongest causal relationship was identified between Identity Strengthening and Economic Empowerment (β = 0.52, p < 0.001), which underscores the importance of cultural pride as a foundation for economic development. The main contribution of this research is the provision of an empirically validated and community-supported framework that bridges cultural preservation with economic development. This model offers actionable insights for policymakers and development practitioners to revitalize similar cultural heritage as sustainable economic assets.

Local Wisdom Practices in Managing Fisheries Resources of the Klawing River

2025-11-07T03:33:16+00:00

The Klawing River plays an essential role as a source of livelihood for local communities and as a habitat for various fish species, yet it is increasingly under pressure from human activities and environmental changes. This study aims to identify the forms of local wisdom practiced by fishing communities in managing fishery resources and to assess their relevance to modern challenges. The research was conducted in five villages representing the upstream, middle, and downstream sections of the river using a qualitative descriptive approach through interviews and observations involving 40 respondents. The results show that local wisdom is reflected in the use of traditional fishing gear (nets, gillnets, fishing lines, paser, wuwu, and mijahan), the application of the pranata mangsa as a seasonal fishing guide, social solidarity among fishers, and the Gredug Sampah tradition focused on maintaining river cleanliness. These practices now face limitations due to climate change, the introduction of invasive species, and economic pressures. The declining accuracy of the pranata mangsa indicates the need to integrate traditional ecological knowledge with modern climatological information to enhance community adaptation to ecosystem dynamics. Therefore, the synergy between local wisdom and scientific approaches is crucial for achieving an adaptive and sustainable fishery resource management system in the Klawing River.

The Effect of Planting Depth on the Vegetative Growth of Caulerpa racemosa in a Tarpaulin Tank Cultivation System

2025-11-07T03:37:06+00:00

Caulerpa racemosa is a type of green macroalgae with high economic value that has the potential to be cultivated intensively. This study aimed to evaluate the effect of planting depth on the vegetative growth of Caulerpa racemosa cultivated in a tarpaulin tank system. Three planting depths were tested: 20 cm, 40 cm, and 60 cm. Vegetative growth parameters observed included Absolute Growth in Weight, Absolute Growth in Stolon Length, and Absolute Growth in Ramuli Length over a defined cultivation period. The results indicated that the 60 cm planting depth yielded the highest vegetative growth, with mean weight reaching 137.67±3.21 g, stolon length 30.04±0.54 cm, and ramuli length 25.29±2.90 cm. Statistical analysis revealed a significant difference only in stolon length between the 60 cm and 40 cm treatments, while differences in weight and ramuli length were not statistically significant. Overall, the data suggest that a 60 cm planting depth provides a more stable microenvironment in terms of light intensity, water temperature, and protection from physical disturbances, thereby enhancing biomass accumulation and vegetative structure development in Caulerpa racemosa. Therefore, a planting depth of 60 cm is recommended as the optimal depth for cultivating Caulerpa racemosa in tarpaulin-based culture systems.

Marine Debris Management and Environmental Quality in Banggai Cardinalfish (Pterapogon kauderni Koumans, 1933) Habitat in Lalong Bay, Banggai Regency, Central Sulawesi

2025-11-07T03:28:11+00:00

Banggai Cardinalfish (BCF) habitat is found in protected waters, such as Lalong Bay, Banggai Regency. Banggai cardinalfish are associated with various biota such as sea urchins (especially Diadema setosum) which live close to coral reef, seagrass and mangrove ecosystems. The aim of this research was to analyze marine debris contamination in Banggai cardinalfish habitat in Lalong Bay. This research used a quadrat sampling method (2m x 2m) along 20 m-30 m line transects at 4 research stations. Based on the analysis, organic marine debris types comprised: medium-sized pieces of wood, wood chips, coconuts, coconut husks, leaves and fish carcasses. Inorganic marine debris types comprised glass bottles, tin cans, light bulbs, baby diapers, cooking oil bottles, mineral water bottles, plastic cups, plastic spoons, toothbrushes, buoys, plastic packaging, plastic baskets, lighters, ropes, fishing nets, styrofoam, rubber sandals, tires and other plastic debris. The average amount of debris was 17 items/m², volume 0.13 m³, weight 1,251 gr/m² at Station 1; 16.75 items/m², volume 0.10 m³, weight 1,157 gr/m²; at Station 2; 20.5 items/m², volume 0.04 m³, weight 2,341 gr/m² at Station 3 26.3 items/m², volume 0.07 m³, weight 1,895 gr/m² at Station 4. Based on observations at these stations in the port, much of the BCF fish habitat was found to be exposed to marine debris due to high levels of human activity and a lack of waste management capacity.

Engine Cooling Compressor Vibration Analysis on the Vessel Binama 07 Jakarta

2025-11-03T01:02:33+00:00

This study aims to analyze the vibration levels of the refrigeration compressor on the fishing vessel Binama 07 Jakarta to evaluate operational conditions and detect potential component failures. Measurements were conducted using a vibration meter in three directions horizontal, vertical, and axial and a digital tachometer to determine the engine’s rotational speed in RPM. The assessment refers to ISO 20816-3:2022, a standard used to classify the condition of rotating industrial machinery. Vibration data collected from November 3–23, 2024, showed that most values fell within Zone B (acceptable), while some reached Zone C (not recommended for long-term operation). Only two days, November 12 and 23, recorded values in Zone A (good), with a vibration level of 1.6 mm/s. No data fell into Zone D (dangerous), indicating no signs of extreme vibration. However, consistent readings in Zone B and occasional spikes into Zone C suggest early signs of machine condition degradation. These findings have significant implications for the performance of the ship’s cooling system, as excessive vibration can affect the stability of the storage temperature for the catch. In the fishing industry, unstable temperatures can directly impact product quality and market value. Therefore, regular vibration monitoring is recommended as a predictive maintenance strategy to maintain optimal performance of the refrigeration system on fishing vessels.

Plant-Based Feed and Vitamin E Enhance Reproductive Maturation in Female Cherax quadricarinatus

2025-11-03T01:19:17+00:00

The freshwater lobster Cherax quadricarinatus is an aquaculture commodity with high economic value, yet it remains relatively unfamiliar to the general public. Nevertheless, market demand for this species has shown a significant upward trend, both domestically and internationally. In Indonesia, the increase of aquaculture production specially on freshwater lobster has not been sufficient to meet existing demand, primarily due to the limited availability of high-quality broodstock and the low reproductive capacity of female brood lobsters. One potential strategy to address this issue is the optimization of feed quality. This study aims to evaluate the effects of a dietary combination consisting of mung bean sprouts (Vigna radiata), white sweet potatoes (Ipomoea batatas), and commercial pellets enriched with vitamin E on the reproductive performance of female freshwater lobsters. The results indicated that the best feed formulation was observed in Treatment P3, which consisted of 25% mung bean sprouts, 50% Fengli 3 pellets + vitamin E, and 25% white sweet potatoes. This treatment accelerated gonadal maturation to 25 days and resulted in a fecundity of 467.33 eggs, a fertilization rate (FR) of 97.84%, a hatching rate (HR) of 92.70%, and a survival rate (SR) of 90.87%. The content of vitamins A, C, and E in mung bean sprouts is known to stimulate spawning and enhance embryo hatchability, while bioactive compounds in white sweet potatoes contribute to the synthesis of reproductive hormones such as estrogen and vitellogenin.

Distribution and Diversity of Seagrass Types in the Amahai And Sehati Waters of Central Maluku Regency

2025-11-03T01:40:56+00:00

Amahai and Sehati are located in Central Maluku Regency, Maluku Province, which has a diversity of seagrass species spread across the intertidal and subtidal zones. The purpose of this study was to determine (1) the distribution of seagrass in the intertidal and subtidal zones, (2) the diversity value of seagrass species in the intertidal and subtidal zones. The study was conducted from 8 to 21 December 2024 using the linear quadrat transect method. 3 transects were made in Amahai waters and 5 transects in Sehati waters. Each transect consisted of 10 quadrats measuring 1x1 meter. The study found 3 types of seagrass, namely Cymodocea serrulata, Halodule pinifolia, and Halophila ovalis in the intertidal zone and Enhalus acoroides and Thalassia hemprichii seagrass species were found in the subtidal zone. The Physico-Chemical Factors of Amahai waters in the intertidal zone found seawater temperature of 280C, salinity of 27.40/00, and pH of 7.4. The Physico-Chemical factors of Amahai waters in the subtidal zone are, temperature 28⁰C, salinity 29.10/00, and pH 7.3. The average physico-chemical factors in the tidal zone in Sehati coastal waters are, sea air temperature of 29⁰C, salinity of 26.5⁰/₀₀, and sea air pH of 7.5. The average physico-chemical factors in the subtidal zone of Amahai waters are, temperature 29⁰C, salinity 28.4⁰/₀₀, and pH 7.5. The distribution pattern of seagrass in the intertidal and subtidal zones in Amahai and Sehati waters is relatively even. The value of the seagrass species diversity index in the tidal zone of Amahai (1.487) and Sehati waters (1.359) is classified as moderate. The value of the seagrass species diversity index in the subtidal zone of Amahai (0.675) and Sehati (0.693) is classified as moderate. This research contributes to the coastal ecosystem to improve the welfare of the community around Amahai Village and Sehati Village.

Analysis of Fish Stress Levels Based on Different Topographic Characteristics in Magelang Regency, Central Java

2025-11-07T03:26:57+00:00

Environmental stressors are external factors that can negatively impact aquatic life, especially fish, as they are considered the main indicators of ecosystem health due to their sensitivity to environmental changes. The purpose of this study was to determine the level of stress in fish (especially catfish and tilapia) based on the blood glucose concentration of fish cultivated in Magelang Regency, Central Java. The data analysis used was spatial analysis to describe the spatial conditions of topographic parameters, air temperature, pond water temperature, and blood glucose concentration of fish (tilapia and catfish). Crosscorrelation multiple variable analysis was used to determine the correlation coefficient value between each parameter. The Crosscorrelation Multiple Variable Analysis method with the Pearson Product-Moment Correlation model. The results of the analysis of blood glucose concentration of catfish were 59.59 mg/dL and tilapia 87.80 mg/dL, so in general it can be concluded that the influence or correlation between water parameters on the level of stress of fish in the Magelang Regency area is tiny, which indicates that the condition of catfish and tilapia is not experiencing stress, where the average blood glucose is still at a normal level. The correlation coefficient value between water temperature and blood glucose of tilapia is -0.06, and that of catfish is -0.41, which means that the relationship between pond water temperature and stress levels of tilapia and catfish is fragile.

Coral Reef Potential Based on Diversity at Grand Watudodol Beach, Banyuwangi Regency

2025-11-05T14:06:30+00:00

Grand Watudodol Beach is a tourist area that offers underwater beauty which is a wealth found in Indonesia. This study aims to determine the water parameters, types of coral reefs and coral reef diversity. The research method used is descriptive method with data collection through direct observation using Line Intercept Transect (LIT) technique. Data analysis method used is diversity index analysis and dominance index analysis. The results of the study found 17 species of coral reefs with the most species found is the type of Montipora danae and the least is the type of Porites lutea. The value of diversity in the waters of Grand Watudodol is included in the moderate category with a value of 2.42. The value of the coral dominance index is included in the medium category, which is in the range of values 0.30 < C < 0.60. The value of oceanographic parameters in the waters of Grand Watudodol is salinity 32 ppt at the location point, the value of temperature parameters at the location point 29-30 °C, pH value obtained 7-8, brightness obtained 7-10 m, current velocity value obtained 0.0678 m/s.

Effectiveness of Ketapang Leaf (Terminalia catappa), Banana Leaf (Musa sp.), and Teak Leaf (Tectona grandis) Extracts on Enhancing the Color of Channa Maru Fish (Channa marulioides)

2025-11-05T15:12:22+00:00

This study aimed to evaluate the effectiveness of Ketapang (Terminalia catappa), Banana (Musa sp.), and Teak (Tectona grandis) leaf extracts on enhancing the coloration of Channa maru (Channa marulioides). Body coloration in ornamental fish is an important aesthetic trait that significantly influences market value and consumer preference in the ornamental aquaculture industry. The experiment was conducted using a completely randomized design (CRD) consisting of four treatments (control, Ketapang extract, Banana leaf extract, and Teak leaf extract) with three replications. Parameters observed included color intensity using the Toca Colour Finder (TCF), carotenoid content in fish tissues, survival rate, absolute growth in length and weight, and water quality. The results showed that Ketapang leaf extract significantly improved fish coloration, yielding the highest TCF scores and carotenoid content (0.32 µg/g), followed by Teak leaf extract (0.22 µg/g), Banana leaf extract (0.07 µg/g), and the control (0.06 µg/g). Leaf extracts had no significant effect on survival rate or absolute growth in length and weight. Water quality remained within the optimal range throughout the experiment and did not act as a limiting factor. In conclusion, Ketapang leaf extract is recommended as the most effective natural additive to enhance the coloration and carotenoid content of Channa maru, followed by Teak leaf extract, while Banana leaf extract showed less effectiveness.

Application of Milkfish Skin Gelatin (Elops hawaiensis) as A Stabilizer in Panna cotta Dessert Products

2025-11-17T02:01:18+00:00

The skin of payus fish (Elops hawaiensis) is a by-product of the bontot processing industry in Pontang, Serang Regency, Banten, which has the potential to be utilized as an alternative source of halal gelatin serving as a stabilizer in panna cotta desserts. This study aimed to characterize gelatin extracted from payus fish skin and to determine the optimal concentration of payus fish skin gelatin on the characteristics of panna cotta dessert products. The method used was a Completely Randomized Design (CRD) with one treatment factor, namely the concentration of payus fish skin gelatin at 0.5%, 1%, and 1.5%, and a control using commercial bovine gelatin. Gelatin analysis included yield, proximate composition, pH, and viscosity, while panna cotta analysis included gel strength, proximate composition, and hedonic tests on appearance, aroma, taste, and texture. The results showed that payus fish skin gelatin contained 7.7% moisture, 1.04% ash, protein 74% (bk), fat 8.4%, pH 6.3, 0.15% carbohydrates, and viscosity of 3.8 cP, which met the Indonesian National Standard (SNI) 06-3735-1995. The application of payus fish skin gelatin in panna cotta at a concentration of 1% produced the best treatment, with gel strength of 639.3 g bloom, moisture content of 75.1%, ash 3.5%, protein 5.5%, fat 1.8%, and carbohydrates 14.1%. The hedonic test results for appearance (4.03), texture (3.9), aroma (4.13), and taste (3.50) indicated that the product was rated from neutral to liked by the panelists. Therefore, payus fish skin gelatin at an optimal concentration of 1% had potential as an alternative to commercial gelatin in panna cotta dessert products.

Hybrid Renewable Energy System: Design of Fishing Boat Lamp Based on Solar Energy and Seawater Electrochemistry in West Kalimantan

2025-11-17T02:17:54+00:00

This study presents the design and performance evaluation of a Hybrid Renewable Energy System (HRES) integrating a mini solar panel, lithium-ion battery, and seawater-based galvanic cell (Mg–Cu) for sustainable lighting applications on small fishing boats in coastal West Kalimantan, Indonesia. The system aims to provide an affordable and renewable power source for traditional fishermen. Experimental results show that a 2 W mini solar panel produced an average of 12.64 Wh/day with a peak output of 2.7 W under optimal sunlight conditions. The lithium-ion 3S 18650 battery pack (27 Wh) demonstrated stable performance, powering a 3 W HPL lamp continuously for 12 hours (18:00–06:00) with load voltage decreasing gradually from 3.36 V to 3.15 V and current from 0.78 A to 0.66 A, corresponding to a light intensity reduction from 2538 lux to 1882 lux at a 10 cm distance. In contrast, the Mg–Cu seawater cell produced lower illumination levels of 492–221 lux, indicating its suitability primarily as a backup energy source. The hybrid configuration effectively enhanced system reliability and operational sustainability in maritime environments. Overall, this study confirms the potential of HRES to strengthen energy independence among small-scale fishermen while supporting SDG 7 (Affordable and Clean Energy), SDG 13 (Climate Action), and SDG 14 (Life Below Water) through practical utilization of locally available renewable resources.

Tuna Fish Commodity Balance In Indonesia

2025-11-17T02:33:37+00:00

Commodity balance is a collection of data and information that describes the consumption and production conditions of a particular commodity, both to meet the needs of the community and the industrial sector in a certain period of time and applies nationally. Analysis of the tuna commodity balance in Indonesia is very important to understand the balance between production and consumption and its impact on fisheries policy and the national economy. In addition, forecasting tuna production and consumption also plays a crucial role in ensuring resource sustainability and market balance in the future. However, issues such as overfishing, infrastructure limitations, and low domestic consumption pose significant challenges that need to be addressed. Therefore, the objectives of this study are: (1) analyze the tuna commodity balance in Indonesia, and (2) forecast tuna production and consumption in Indonesia. This research takes the object of Indonesia to Japan. The data used is quantitative with secondary data sources from Badan Pusat Statistik (BPS) and Kementerian Kelautan dan Perikanan (KKP) from 1994 - 2023. Time series data for 30 years were analyzed using quantitative methods with a descriptive approach for commodity balance analysis and ARIMA models for forecasting tuna production and consumption in Indonesia, selected based on stationarity tests, ACF-PACF plots, and the lowest AIC, SC, and HC criteria. The ARIMA (1, 1, 0) model was selected as the best model for production, while ARIMA (0, 1, 1) was chosen for consumption. Forecasting using ARIMA indicates an upward trend in both tuna production and consumption from 2024 to 2030. Policy recommendations for the government to improve production efficiency, strengthen product quality according to export standards, and expand domestic market access to increase national tuna consumption.

Squid Catching Productivity with Cast Net at the Nusantara Kejawanan Fishing Port, West Java

2025-11-18T18:42:55+00:00

The Nusantara Fishing Port (PPN) Kejawanan is located in the Lemahwungkuk District of Cirebon City. Cast nets are a widely used fishing gear for catching squid. This study aims to describe how cast nets are operated and to analyze variations in squid catch productivity per trip and per gross tonnage (GT) of the vessel. The method used was a survey method through direct observation and interviews to obtain technical data on fishing operations and catch results. Observations were made on seven (7) cast net vessels per month (n = 7 vessels/month) during the period January–March 2024. The results of the study show that during January–March 2024, the highest productivity value occurred in January at 7,349 kg/trip and the lowest value was 6,224 kg/trip in February. Meanwhile, the highest productivity per GT of vessel catch was in January at 183.73 kg/GT of vessel, and the lowest was in February at 121.02 kg/GT. This variation in productivity between months occurred in the context of the season and was related to a combination of technical operational factors and fishing environmental conditions.

Assessment of Seaweed Farming Suitability in Tesabela Village Kupang Regency Using Geographic Information System

2025-11-22T01:10:37+00:00

Seaweed plays an important role in the implementation of the Blue Economy concept in Indonesia, as it not only serves as a commodity that supports the economy of coastal communities, but also has the potential to enhance national food security, mitigate the impacts of climate change, and promote sustainable marine resource management practices. The waters of Tesabela Village represent one of the potential areas that can be developed as a seaweed aquaculture center in Kupang Regency. The purpose of this research is to generate a site suitability map for seaweed cultivation in the marine area of Tesabela Village, Kupang Regency. Sampling points were determined using purposeful random sampling, but within the entire area. A total of six sample points were selected. Sample points one through six represent the waters of Tesabela Village. Secondary data was also collected to provide additional information for the geographic information system. The analysis showed that three stations were categorized as highly suitable (S1): stations 4, 5, and 6, with a total area of 96.57 ha. Stations 1, 2, and 3 were categorized as suitable (S2), or acceptable, with an area of 80.48 ha. These factors have the potential to reduce productivity, but farmers can generally address them through technical adjustments. Furthermore, seaweed farmers still need more support from the government and the private sector to maintain the sustainability of their farming operations and to conduct further research.

Analysis of the Cultivation Area and Production Volume of Seaweed (Kappaphycus striatum) in Aimoli Village, West Alor District

2025-11-29T23:37:17+00:00

The area of seaweed cultivation in the waters of Aimoli Village is not yet comprehensively known, and this condition affects information related to production volume. This study aims to uncover information related to the area of cultivation and production volume of seaweed (Kappaphycus striatum) in Aimoli Village, Northwest Alor District. If utilized optimally, it can support seaweed productivity in Aimoli Village. In this study, the methods used were weighing the seedlings, measuring the length of the ropes, counting the planting points on each rope, weighing the wet seaweed at harvest, and weighing the dry seaweed ready for sale with the same rope length as when weighed wet. Furthermore, to measure the area of cultivation, the classification of land area that has been utilized and not yet utilized was done using ArcGIS 10.8 software based on historical cultivation processes and visual observations. The results of the study in Aimoli Village indicate that seaweed production in 2024 will be as follows: Number of seaweed farmers: 35 people; Wet seaweed: 169 tons; Dry seaweed: 84 tons. For 2025, in the first cycle (January-March), wet seaweed production is 42 tons, while dry seaweed production is 31 tons. The total seaweed production for 2024-2025 is 115 tons. The area that can be used as seaweed cultivation land in Aimoli Village is 11.11 hectares, but it has only been utilized for seaweed cultivation development. Seaweed cultivation only covers an area of 2.22 hectares or 19.98%.