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Journal : Journal of Fish Health

Analysis of Bottom Gillnet Catches in Lambur Luar Village, Muara Sabak Timur District, Tanjung Jabung Timur Regency Khairunissa, Ade; Mairizal; Magwa, Rizky Janatul; Lisna; Ramadan, Fauzan; Wulandari
Journal of Fish Health Vol. 5 No. 4 (2025): Journal of Fish Health
Publisher : Aquaculture Department, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfh.v5i4.8108

Abstract

The waters of Lambur Luar Village are a productive coastal area that supports capture fisheries activities, one of which is through the use of bottom gillnets. This fishing gear is considered fairly selective and environmentally friendly, making it important to assess its effectiveness in terms of catch composition. This study aims to analyze the main catch, bycatch, and discard from bottom gillnets operated by local fishers. The method used was a survey with purposive sampling on ten fishing units, with four replications per unit. The data were analyzed descriptively and supported by biodiversity indices, including diversity, evenness, and dominance. The results showed that mantis shrimp (Harpiosquilla raphidea) was the dominant main catch, with the highest number and biomass. Bycatch was dominated by demersal fish such as croaker (Johnius trachycephalus), tongue sole (Cynoglossus lingua), Chacunda gizzard shad (Anodontostoma chacunda), fourfinger threadfin (Eleutheronema tetradactylum), along with several other species. Meanwhile, discards consist of non-economic benthic organisms such as snails, starfish (Asteroidea spp.), horseshoe crabs (Tachypleus gigas), and ghost crabs (Ocypoda quadrata). The diversity index indicated a moderate category, reflecting ecosystem balance, while the dominance index was low, suggesting no single species excessively dominated the ecosystem. In conclusion, bottom gillnets with a mesh size of 3.5 inches proved effective in capturing target organisms suitable for consumption while reducing the proportion of unwanted discards. This indicates that bottom gillnets have the potential to support sustainable fisheries practices without causing significant negative impacts on the benthic ecosystem in the waters of Lambur Luar Village.
Characteristics of Mudgrovel Crabs Caught Using Trap Fishing Gear in Lambur Luar Village, Muara Sabak Timur District Destiani, Dinda; Depison; Magwa, Rizky Janatul; Lisna; Ramadan, Fauzan; Leni, Yusyam
Journal of Fish Health Vol. 5 No. 4 (2025): Journal of Fish Health
Publisher : Aquaculture Department, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfh.v5i4.8550

Abstract

Mangrove crabs are a type of crustacean that lives in mangrove and estuary ecosystems. one of the freshwater fishery products that have high economic value that are often caught in Lambur Luar Village using trap fishing gear. Purpose of this study was to describe the characteristics of mangrove crabs caught using traps in Lambur Luar Village, Jambi Province. This study was conducted from February 1-16, 2025. The research method used was a census, with data collection techniques using probability sampling. The data observed included the type of mangrove crab, weight, carapace length, carapace width, and sex. Differences in weight, length, and carapace width of mangrove crabs were analyzed using ANOVA followed by Duncan's test at a significance level of 5%. The results showed that there were three species of mangrove crabs caught, namely Scylla serrata, Scylla olivacea, and Scylla tranquebarica. After ANOVA test and Duncan's further test, it was found that the carapace length between Scylla serrata, Scylla olivacea, and Scylla tranquebarica was significantly different (p≤0.05). while the carapace width and weight were not significantly different (p>0.05). Variations sex ratio in the Scylla serrata species were (0.78:0.22) and Scylla tranquebarica (0.67:0.33), indicating that the male population was more dominant in these two species. While the Scylla olivacea species, the sex ratio was almost balanced, namely (0.51:0.49). The conclusion of this study is that the characteristics of mangrove crabs differ between males and females, and there are significant differences in carapace length between mangrove crab species found in Lambur Luar Village.
Co-Authors A Yani Abdi Vico Sumantri Afriadi, Ahmad Afriani Afriani Afriani H Agape Saragih Agus Mandar, Agus Akmal Akmal Amraini Fitri Ardelia, Icha Dewi Arfiana, BS Monica Arfiana, BSM Arfiana, Monica Armarenti, Armarenti Bagus Pramusintho Bagus Pramusintho Bagus Pramusintho Berliana Berliana Berutu, Sumarjani Citra Noeraini Darlim Darmawi Dea Amelia, Dea Deni Efizon Depison Depison Depison Depison Destiani, Dinda Dodi Devitriano Dyah Muji Rahayu E. Wiyanto Egga Yolanda Eka Anjar Sari Nasution Endang G, Ester Ester Restiana Endang Gelis Fachry Abda El Rahman Farhan Ramadhani, Farhan Farhan Ramdhani Farizal Farizal Farizal Farizal Filawati Filawati Firmansyah Firmansyah Gushairiyanto Gushairiyanto Harahap, Afriani Hariski, M Heru Handoko Heru Handoko Hilman Madian Insani Hutauruk, Tiara Nova Wulandari Hutwan Syarifuddin Syarifuddin Indra Sulaksana Irvan Gunawan Irwan Irwan Juni Trisno Mulyo Khairunissa, Ade Krisdianto Wibisono Latif , M. Abdul Leni, Yusyam Lestari, Anggun Lisna Lisna Lisna, Lisna Lisna, Lisna Lubis, Abdillah Lubis, Samudra Asri M Abdul Latif M. Abdul Latif M. Ridho Saputra Mairizal Mairizal Mairizal Maryo Tinambunan Muhammad Farhan Mulawarman Mulawarman Nasution, Annio Indah Lestari Nasution, Eka Anjar Sari Nelwida Nelwida Nelwida Nelwida Noferdiman Noferdiman Nofrizal Nofrizal Nofrizal Nofrizal Nofrizal Nofrizal Noverdiman Noverdiman Nur, Puti Nurhayati Nurhayati Nurhayati Nurhayati Nurhayati Nurhayati Nurhayati Nurhayati Nurhayati Nurhayati Nurhayati Nurhayati P Sormin, Abel Luanda Pakpahan, Roberyo Pangentasari, Dwinda Raguati Raguati Riris Roiska Rizky Janatul Magwa Romie Jhonnerie Saputri, Diah Maulani Saragih, Agape Sarah Angelina Septy Heltria Silaban, Jecky Sitanggang, Earline Margareth Br Suhessy Syarif Suhessy Syarif, Suhessy Sumadja, Wiwaha A Sumantri, Abdi Vico Suratinah Suratinah Syafril Hadi Tampubolon, Nancy Angeline Teja Kaswari Trisno Mulyo, Juni tussadiah, Arifa Wiwaha Anas Sumadja Wontri Erwina Yusniati WULANDARI Yosi Sulastri Br Sihotang Yun Alwi Yun Alwi Yurleni Yurleni Yusniati, Wontri Zafitri, Fadia