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All Journal Jurnal Teknologi Perikanan dan Kelautan Aquacoastmarine Journal of Aquatropica Asia Acta Aquatica: Aquatic Sciences Journal Jurnal Biologi Tropis Jurnal Perikanan Universitas Gadjah Mada Jurnal Akuatiklestari Aquasains : Jurnal Ilmu Perikanan dan Sumberdaya Perairan e-Jurnal Rekayasa dan Teknologi Budidaya Perairan Sains Akuakultur Tropis : Indonesian Journal of Tropical Aquaculture Jurnal Mina Sains Journal of Tropical Marine Science ACROPORA: Jurnal Ilmu Kelautan dan Perikanan Papua Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan AQUACOASTMARINE: Journal of Aquatic & Fisheries Sciences Jurnal Pengabdian Fakultas Pertanian Universitas Lampung Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan Jurnal Perikanan
Indra Gumay Yudha
Program Studi Sumber Daya Akuatik, Fakultas Pertanian, Universitas Lampung, Jl. Prof. Dr. Ir. Sumantri Brojonegoro No.1, Kota Bandar Lampung, Lampung 35141, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Earth & Planetary Sciences Education Engineering Environmental Science Immunology & microbiology Library & Information Science Materials Science & Nanotechnology Other

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THE POPULATION BIOLOGY OF BLUE SWIMMING CRAB Portunus pelagicus (Linnaeus, 1758) DURING OVERFISHING CONDITIONS IN EAST LAMPUNG WATERS Yudha, Indra Gumay; Andriani, Nadya; Yulianto, Herman; Caesario, Rachmat; Delis, Putu Cinthia
Jurnal Perikanan Unram Vol 15 No 6 (2025): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v15i6.2009

Abstract

Blue swimming crab (BSC) is one of Lampung's main export fisheries commodities. The catch of BSC by fishermen in East Lampung waters is becoming more intensive and increasing from year to year, so it is a concern that it will threaten the sustainability of the stock. This research aimed to analyze the biology of several populations of BSC in East Lampung waters during overfishing conditions. Population biology data on BSC analyzed included growth rate, size at first caught, recruitment patterns, sex ratio, fishing mortality, exploitation level, and a potential spawning ratio. The analyzed data originated from BSC caught by crab net fishermen in East Lampung landed at TPI Kuala Penet and TPI Muara Gading Mas for 1 year (August 2019-June 2020), totaling 35,322 samples consisting of 20,586 males and 14,736 females. The research showed that the level of crab utilization had an E value of 0.71 per year. In these overfishing conditions, it was known that the growth of crabs in these waters was following the equation of CWt= 191,6x[1-e-130(t-(-0,073))]. The carapace width of BSC caught for the first time (Lc) was 119 mm (male) and 123 mm (female) with a sex ratio (M: F) that varied every month between 1:1 and 2:1. Recruitment occurred throughout the year. The SPR was slightly under 20% indicating that overfished conditions had caused the potential for the crab to spawn in an unsustainable condition.
Co-Authors Abdullah Aman Damai Abdullah Aman Damai Al Supandi, Nur Muhammad Tirta Weuning Andriani, Nadya Anma Hari Kusuma, Anma Hari Aprillya, Dyah Puspita Caesario, Rachmad Caesario, Rachmat Choiri, Muhamad Fatin Damaiati, Putri Danalau, Hanggum Waka Darma Yuliana David Julian Delis, Putu Cinthia Deny Sapto Chondro Utomo Desma Fitriani eko efendi Elisdiana, Yeni Erna Rochana Ferry Tito Wijaya Henni W Maharani Herman Yulianto Indra Gumay Febryano Indriasih, Indriasih Julian, David KARTINI, Nidya Kesuma, Anma Hari Krismonita, Bella Kuswanta Futas Hidayat Limin Santoso M Aldhy Nur Pradana Maharani, Henni Wijanti Mahardika, SM. A Hari Maulana, Zahri Mayagues, Henky Moh. Muhaemin Muhamad Karim Muhammad Reza Munti Sarida Nidya Kartini Nilawati, Nindia Ciandra Nopendi, Gusti Putu Nova, Theresia Santika Deska Pratama, Ricky Hadi Putriani, Rizha Bery Qadar Hasani Rahayu, Risma Warni Ramdhani, Muhammad Rizal Rani, Sulis Tya Rara Diantari Rodiyah - Septiyani, Eka Sary Sheptiane, Ivena Putri Siti Hudaidah Supar mono Suparmono Suparmono Supono Supono Susanti, Oktora Tarsim Tarsim Taufiqurahman, Wahyu Teguh Endaryanto Theresia Santika Deska Nova Thomas Nugroho Vina Triesa Putri Wibowo, Annisa Widiastuti, Endang Linirin Wulandari Wulandari Yudha Trinoegraha Adiputra Yudha Trinoegraha Adiputra Yudha Trinugraha Adiputra Yuliana, Darma Yuliana, Darma Yusup, Maulid Wahid Yuwana Utami Cendrakasih Yuwana Utami Cendrakasih Zainal Abidin