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Marine Fisheries: Jurnal Teknologi dan Manajemen Perikanan Laut

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Published by Institut Pertanian Bogor

ISSN : 20874235 EISSN : - DOI : https://doi.org/10.29244/jmf.6.2.109-117

Core Subject : Social,

Environmental Science

Aims: MARINE FISHERIES aims to publish an original research focused on technology and management of capture fisheries, such as fishing equipment, management and transportation of fishing vessel, port management, and technology of capture fisheries.

Arjuna Subject : Ilmu Lingkungan (semua ketegori) - Ilmu Lingkungan (Lain-Lain)

Articles 311 Documents

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HULL REDESIGN AND ITS EFFECT ON THE RESISTANCE OF MANADO PROTOTYPE SMALL PURSE SEINER: Rancang Ulang Desain Lambung dan Pengaruhnya terhadap Tahanan Gerak Kapal Pukat Cincin Kecil Manado Pamikiran, Revols D. Ch.; Manoppo, Lefrand; Dien, Heffry; Manu, Lusia
Marine Fisheries : Journal of Marine Fisheries Technology and Management Vol. 15 No. 1 (2024): Marine Fisheries: Journal of Marine Fisheries Technology and Management
Publisher : Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jmf.v15i1.49865

This research aims to determine the effect of redesigning the hull of a small purse seine ship on its motion resistance. The research was carried out using a small purse seine ship prototype in Manado by changing the length-breath-depth ratio based on the main dimensions of the ship, resulting in three new hull designs coded K-0 (prototype), K-1, K-2, and K- 3. Maxsurf modeler and Maxsurf resistance were used to run a simulation set of three loading conditions (light, half, full) and speed (low, medium, high). The research results show that changes in ship hull design affect the resistance and thrust of the ship. There is a difference in resistance between the ship with the redesigned hull and the prototype, where the smallest difference is shown by K-3. In addition to changes in hull design, changes in ship loading conditions, Froude number, and ship speed lead to increases in ship resistance and thrust. Based on the average allowance (sea margin or service margin) in shipping lanes, the need for propulsion power and the number of propulsion power vessels K-0 (prototype) and K-3 are still better than K-1 and K-2. Keywords: purse-seiner, resistance, speed, propulsion

PERSEPSI NELAYAN LOKAL TERHADAP KEBERADAAN MIMI DI WILAYAH PESISIR BANYUASIN, SUMATERA SELATAN Dwigothammy, Rahmadella; Fauziyah; Wildayana, Elisa; Agustriani, Fitri
Marine Fisheries : Journal of Marine Fisheries Technology and Management Vol. 15 No. 1 (2024): Marine Fisheries: Journal of Marine Fisheries Technology and Management
Publisher : Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jmf.v15i1.50136

Horseshoe crabs (HSC) are marine arthropods, which are protected in Indonesia. Understanding fishermen's perceptions of HSC's existence was very important for the decision-making of conservation planning and management. This research aimed to analyze local fishermen's perceptions toward HSC's existence and the factors influencing their perceptions. Questionnaire-based interviews were conducted with 92 fishermen from the Banyuasin coast, from August to September 2023. Data were analyzed using descriptive statistics and multinomial logistic regression. The results revealed that most fishermen knew HSC and could distinguish their species. The survey of fishing practices showed that the vast majority of respondents operate one-day fishing with only few hours at sea (53.3%), conducting day time operation (69.6%), using 5-10 GT vessels (52.2 %), and deploying fishing gear at the sea bottom (85.9%). Based on fishermen's perception scores toward HSC existence through six assessment aspects, the majority of their perceptions were in the moderate category (54%), followed by the low (28.7%) and high (16.2%) categories. In terms of the regression output, the results of the likelihood ratio test indicated that education, setting position of gear, fishing operation time, and village location were explanatory variables that significantly influenced fishermen's perceptions. Keywords: Ecological knowledge, Fishing practices, Multinomial logistic regression Protected species

STRATEGI PENCEGAHAN POTENSI PELANGGARAN ARMADA PENANGKAPAN IKAN STUDI KASUS PPS NIZAM ZACHMAN JAKARTA: Prevent Potential Violations Strategy of Fishing Vessel Case Study in PPS Nizam Zachman Jakarta Sembada, Aditya Jaka; Wisudo, Sugeng Hari; Yusfiandayani, Roza
Marine Fisheries : Journal of Marine Fisheries Technology and Management Vol. 15 No. 1 (2024): Marine Fisheries: Journal of Marine Fisheries Technology and Management
Publisher : Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jmf.v15i1.51342

Before fishing surveillance is one of the important surveillances at fishing ports. A case study at PPS Nizam Zachman Jakarta (PPSNZJ) stated that 22.75% of purse seiners use fishing gear and equipment following did not comply with fishing business license (SLO). This research aims to identify potential violations of fishing vessels at before fishing stage after the SLO was issued and the factors that cause these violations to produce a conceptual model for preventing potential violations of fishing fleets. Primary data were collected using open interview. The secondary data were collected from annual report of the Pangkalan PSDKP Jakarta and PPSNZJ fishing port, and previous studies. This research was approached using 4 stages of a soft system methodology (SSM) approach namely identifying unstructured problems, structuring problems, formulating root definitions, and formulating conceptual models. The results of research show that there are six problems in activities before fishing after the SLO was issued. Based on the SSM approach, issuing supervisory regulations after the SLO was required to prevent illegal addition of fishing gear and fishing equipment. This is due to the absence of supervision after the SLO was issued by fisheries inspectors. Keywords: fishing surveillance, fisheries violation, SSM, strategy, PPSNZJ

SPATIAL-TEMPORAL DISTRIBUTION OF NARROW-BARRED SPANISH MACKEREL (Scomberomorus commerson) FISHING GROUNDS IN RIAU ARCHIPELAGO WATERS, INDONESIA Fardilah, Muhammad Fajar Fajri; Simbolon, Domu; Sondita, Muhammad Fedi Alfiadi; Sari, Tengku Ersti Yulika; Setiawan, Heri
Marine Fisheries : Journal of Marine Fisheries Technology and Management Vol. 15 No. 1 (2024): Marine Fisheries: Journal of Marine Fisheries Technology and Management
Publisher : Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jmf.v15i1.51908

Narrow-barred Spanish mackerel (Scomberomorus commerson) is an exportable fish captured by gillnet fishing fleets from Bintan Regency. The fleets are operated in the Riau Archipelago waters but information on their activities is limited. Such information is important to the institution the Agency for Marine and Fisheries Affairs of Archipelagic Riau Province for ensuring the sustainability of the fisheries from both economic and biological perspectives. This study aims to determine the spatial-temporal distributions of the mackerel fishing grounds along the year with reference to the capture data, sea surface temperatures, chlorophyll-a concentrations, and salinities in the last 4 months of 2022. This study analyzed data from a fish export company, the PSDKP office at Tanjungpinang, Bintan, interviews of fishers affiliated with 44 fishing boat samples, and satellite-based marine data. Analysis on the monthly fishing productivity and optimum marine conditions for the mackerels were carried out to determine prospects of five recognized fishing grounds. Besides Lingga Islands, the fishing grounds are highly prospective from August to November. The longest fishing seasons are expected around Bangka Island (11 months). The spatial and temporal patterns show that the north-south-north shifts in fishing grounds that are associated with regional climates, i.e., monsoon winds.

POLA ANTREAN KAPAL PENANGKAPAN IKAN DI PELABUHAN PERIKANAN KARANGSONG, KABUPATEN INDRAMAYU Rukmana, Raistsa Robbaanii Sunda; Apriliani, Izza Mahdiana; Putra, Pringgo Kusuma Dwi Noor Yadi; Dewanti, Lantun Paradhita
Marine Fisheries : Journal of Marine Fisheries Technology and Management Vol. 15 No. 1 (2024): Marine Fisheries: Journal of Marine Fisheries Technology and Management
Publisher : Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jmf.v15i1.52230

A catch unloading is a fishing vessel activity carried out regularly at the port. The high frequency of unloading activities leads to a long queue which requires fishing vessels to wait in significant time for their unloading turn. One of the fishing ports with a significant waiting time is Karangsong Port, where the unloading queue can reach three weeks. To reduce the waiting time, there is a need to identify the utilization level of unloading facilities and queue patterns, as well as calculate unloading time and its influencing factors at Karangsong fishing port. This case study was focused on vessel queuing patterns, utilization of port facilities and the length of unloading time. Data were collected through direct interviews and observations. Based on the calculation results, the utilization rate of the unloading dock is 20.16%, TPI is 36.63% and the port basin reaches 577.86%. The vessels queue in double lines with a single service facility. The average length of unloading time for >30 GT vessels is 2.60 hours while for ≤30 GT vessels is 11.92% faster which is recorded at 2.29 hours. Factors affecting the length of unloading time incorporate the vessel's size, crew size, number of catches, availability of scales, market demand as well as the vessel's position and number of vessels in the queue. Keywords : Queue, fish unloading, port facilities

COMPOSITION, LENGTH-WEIGHT RELATIONSHIP, AND FISHING GROUND OF SHARKS LANDED AT PPS CILACAP, CENTRAL JAVA Krisnafi, Yaser; Dian Novianto; Syam Baharuddin Sahid; Ratih Purnama Sari
Marine Fisheries : Journal of Marine Fisheries Technology and Management Vol. 15 No. 2 (2024): Marine Fisheries: Journal of Marine Fisheries Technology and Management
Publisher : Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jmf.v15i2.47399

This study was conducted to analyze the catches of sharks, such as composition, length-weight relationship, and to determine the distribution of shark fishing areas. Every fishing activity has by-catch issues. Fishers commonly catch sharks as by-catch. These fishing activities will harm the shark ecosystem in the waters. This research was conducted in March – May 2021 at PPS Cilacap. The results of this study showed that A. superciliosus (paitan shark) was a common catches and its total catch was 1,820 kg. The next common catch was Carcharhinus falciformis and the total catch was 723 kg. The lowest catch was the Carcharhinus sorrah shark (sorrah shark) and its total catch was 16 kg. The growth of Carcharhinus falciformis was negative allometric because b-value <3. Meanwhile, the growth of A. superciliosus is positive allometric because b-value was > 3. Length-weight relationship of Carcharhinus falciformis and A. superciliosus was isometric, which means that the growth between length and weight is balanced. Shark fishing areas are located at coordinates 8º - 15º South and 100º - 111º East. The area of shark fishing is at coordinates 8º - 10º South and 108º - 110º East. Keywords: Composition, Length-Weight Relationship

DESIGN AND DEVELOPMENT OF A DEEP LEARNING-BASED AUTOMATIC FISHERIES LOGBOOK FILLING TOOL Iqbal, Muhammad; Tanhir, Muhammad Fadhilah; Apriliansyah, Bachtiar Adi; Pratama, Xavercius Cezar; Nadja, Kuntum Khaira; Lotaldy, Alnodio; Wahyuningrum, Prihatin Ika
Marine Fisheries : Journal of Marine Fisheries Technology and Management Vol. 15 No. 2 (2024): Marine Fisheries: Journal of Marine Fisheries Technology and Management
Publisher : Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jmf.v15i2.47574

Filling out a fishery logbook is critical in capturing fisheries to maintain fishery sustainability. However, manual logbook filling often leads to errors in data recording, which can impact the accuracy and quality of fishery data. This study propose the design of an automatic fisheries logbook filling tool based on Deep Learning, called FLOADS (Fisheries Logbook and Detection System). This system consists of instruments placed at the ship's hatch, equipped with a camera capable of detecting fish species, measuring the weight of individual fish passing through, and recording and sending data, along with the ship's position and speed, to a server on land. The development stages of the FLOADS include problem identification, tool design, prototype development, and field testing. The FLOADS prototype consisted of three parts: a fish collection container, a fish sliding area, and an Imaging Box with dimensions of 120 cm × 65 cm × 82 cm. Validation of the YOLOv5 model showed an accuracy rate of 99.07% and an F1-Score of 99.1% for recognizing the Tuna, Cakalang, and Tongkol (TCT) fish species. Field testing was conducted in Palabuhanratu using a 10 GT fishing vessel. The field testing results show that FLOADS performs well on board to detect objects with an accuracy rate of 89.1% and track vessel activities with reasonable accuracy. Keywords: Deep Learning, DeepSORT, Fisheries Logbook, Measurable Fishing, TCT.

BIOECONOMIC ANALYSIS OF RED SNAPPER (Lutjanus sp.) RESOURCES AT REMBANG REGENCY Handayani, Meri; Dian Purnama Fitri, Aristi; Wijayanto, Dian
Marine Fisheries : Journal of Marine Fisheries Technology and Management Vol. 15 No. 2 (2024): Marine Fisheries: Journal of Marine Fisheries Technology and Management
Publisher : Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jmf.v15i2.49120

Rembang Regency has quite large fishery potential in 2021, reaching 87,292.9 tonnes in Central Java. One of the catches with high economic value is red snapper (Lutjanus sp.). Red Snapper is a demersal fish obtained from the operation of Danish seine. The purpose of this study was to analyze the condition of red snapper resources in Rembang Regency using the bioeconomic approach of the Gordon-Schaefer model and to analyze the level of utilization and exploitation of red snapper (Lutjanus sp.) in Rembang Regency. The research used a descriptive method with a purposive sampling method to collect a sample of 90 respondents who owned Danish Seine gear at Tasikagung Fishing Port. The results of data processing obtained Maximum Sustainable Yield (MSY) with a CMSY value of 2,002 tons/year, EMSY of 8,857 trips/year. The Maximum Economic Yield (MEY) calculation obtained a CMEY value of 1,936 tons/year, EMEY of 7,241 trips/year, and optimal profit of IDR 74,773,571,716 and the calculation of the Open Access Equilibrium (OAE) where a COAE value of 1,194 tonnes/year is obtained, an EOAE of 14,483 trips/year. The permissible utilization rate of red snapper (Lutjanus sp.) in Rembang Regency is 3,670,532 kg/year. In the last 9 years, an average resource utilization rate of 45% was obtained and an average effort level of 158%. This level of effort has exceeded the fishing limit, so it is necessary to reduce or limit fishing efforts. Keywords: MSY; MEY; Rembang Regency; Red Snapper; Gordon Schaefer

CATCH COMPOSITION AND CATCHABLE SIZE OF LOBSTERS (Panulirus spp) IN LEBAK BANTEN WATERS, INDONESIA Sani, Ndaru Narulita; Purbayanto, Ari; Wahju, Ronny Irawan
Marine Fisheries : Journal of Marine Fisheries Technology and Management Vol. 15 No. 2 (2024): Marine Fisheries: Journal of Marine Fisheries Technology and Management
Publisher : Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jmf.v15i2.50107

Information on the catch composition and catchable size of lobsters in Lebak waters remains limited, posing challenges for effective fisheries management. This study aims to assess the technical performance of the lobster fishery and analyse catch composition. Data on technical performance were collected through interviews with fishers and lobster collectors using random sampling, while a census approach was applied to measure carapace length and weight for 589 lobsters. A descriptive quantitative analysis was conducted to evaluate the length-weight relationship of lobsters. The findings indicate that fishers predominantly use polyamide monofilament gillnets with a mesh size of 3.5–4.0 inches, operating traditional outrigger boats of 2–3 GT and 7 GT for single-day fishing trips in Lebak waters. Panulirus homarus was the dominant species in the catch. The sex ratio of lobsters was imbalanced, and their growth pattern exhibited negative allometry (b < 3). An assessment of catch sizes against the standards set by PERMEN-KP No. 16/2022 revealed a high proportion of undersized lobsters in the Binuangeun Estuary, including P. penicillatus (78–83%), P. homarus (80–100%), P. ornatus (23%), P. longipes (90–100%), and P. versicolor (65–100%). Similarly, in the Cibareno Estuary, the percentages of undersized lobsters were P. penicillatus (84–100%), P. homarus (98%), P. ornatus (0%), P. longipes (100%), and P. versicolor (92%). These findings highlight the need for stricter management measures to ensure sustainable lobster fisheries in the region. Keywords: catchable, Lebak Banten waters, length weight, lobster, sex ratio

FRESHWATER STINGRAY FISHERMEN’S INCOME IN MUSI RIVER, PALEMBANG CITY, SOUTH SUMATRA Septiani, Nabila Nur; Wijayanti, Pini; Azzahra, Sahaya Aulia; Nikmah, Lailatun; Sapanli, Kastana
Marine Fisheries : Journal of Marine Fisheries Technology and Management Vol. 15 No. 2 (2024): Marine Fisheries: Journal of Marine Fisheries Technology and Management
Publisher : Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jmf.v15i2.51720

Freshwater stingrays are one of the catches targeted by fishers in the Musi River of Palembang City. However, freshwater stingrays are listed as endangered species by the IUCN, and Indonesian government regulates their preservation. Prohibiting the capture of freshwater stingrays can have significant impact on the livelihoods of fishers around the river. This research was designed to analyze fishers’ income and identify the contribution of freshwater stingray catches toward fishers’ income. According to income analysis, the results show that the average fishers’ income is around IDR 269,542.13 - 655,287.47 per trip per day with an R/C ratio to the total cost is 3.78 in the regular season and 2.14 in the low season. The share of freshwater stingray catches toward the total income ranges from 14.22% to 20.93%. Keywords: elasmobranch, livelihood, profit sharing, sustainable fisheries

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Munirah Tuli

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munirahtuli@ung.ac.id

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+62251-8622935

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marfish.journal@gmail.com

Editorial Address
Department of Fisheries Resources Utilization Faculty of Fisheries and Marine Sciences, Bogor Agricultural University.

Location
Kota bogor,

Jawa barat

INDONESIA