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All Journal Jurnal Kelautan : Indonesian Journal of Marine Science and Technology Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan
Siti Mira Rahayu
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Earth & Planetary Sciences Education Engineering

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Biological aspects of squid (Loligo edulis) in the waters of Eastern North Sumatra, Indonesia Dadan Zulkifli; Ratna Suharti; Yuni Fast Track Anjeli Sihombing; Meuthia Aula Jabbar; Siti Mira Rahayu; Aditya Bramana; Hendra Irawan; Deni Aulia
Depik Vol 12, No 1 (2023): APRIL 2023
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (553.839 KB) | DOI: 10.13170/depik.12.1.28602

Abstract

Squid is one of the non-fish resources that have economic value and is a target species in demersal fisheries activities with squid fishing gear and stick-held deep net. This research aims to determine the biological aspects of squid (Loligo edulis) such as length frequency distribution, length-weight relationship, sex ratio, gonadal maturity level, gonadal maturity index, size at first caught, and size at first maturity of the gonads. The method used in this research was a descriptive survey. The sample collection method used systematic random sampling and purposive sampling techniques. This observation was carried out on March 7 to July 30, 2022, at the Belawan Ocean Fishing Port and Tanjung Balai Port. The results showed that the average length distribution of squid was 17.73 cm. The relationship between the length and weight of squid is negative allometric. The sex ratio is 1:1.05. The negative allometric growth pattern is dominated by Gonadal Maturity Level (GML) I and GML II. The highest GML value for male squid was 2.06% at GML III, and the highest GML value for female squid was 1.92% at GML III. The average size of the caught squid length (Lc) is 10.42 cm. The size of the first gonad maturity (Lc) was 13.32 cm.Keywords:SquidBiological aspectsFisheries aspectManagement effort
Distribusi Kelimpahan dan Pola Pertumbuhan Kepiting Bakau (Scylla spp.) di Kawasan Mangrove Golo Sepang, Nusa Tenggara Timur Siti Mira Rahayu; Patrisius Toma; Awaludin Syamsuddin; Iya Purnama Sari; Meuthia Aula Jabbar; Dadan Zulkifli; Aditya Bramana; Ratna Suharti
Jurnal Kelautan Vol 16, No 3: Desember (2023)
Publisher : Department of Marine Sciences, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jk.v16i3.23128

Abstract

ABSTRACTKepiting bakau (Scylla spp.) merupakan salah satu komoditas sumberdaya perikanan yang potensial untuk dikembangkan karena memiliki nilai ekonomis yang tinggi. Kawasan mangrove di Golo Sepang merupakan penghasil kepiting bakau terbesar di Kabupaten Manggarai Barat, Nusa Tenggara Timur. Penelitian ini dilakukan untuk menganalisis distribusi dan pola pertumbuhan kepiting bakau (Scylla spp.) di perairan Golo Sepang, Nusa Tenggara Timur. Sampel kepiting bakau diambil pada bulan Maret–Mei 2022 di lokasi yang biasa digunakan nelayan untuk menangkap kepiting bakau dengan menggunakan alat tangkap bubu lipat. Terdapat tiga spesies kepiting bakau dari total 870 individu yang diukur, yaitu S. serrata, S. paramamosain, dan S. olivicea. Sebaran kelimpahan kepiting bakau lebih banyak terdapat di area yang suhu dan salinitasnya lebih tinggi. Pertumbuhan kepiting bakau jenis S. serrata di lokasi penelitian memiliki pola isometrik sedangkan S. paramamosain dan S. olivacea memiliki pola alometrik positif. Pertumbuhan kepiting jantan lebih cepat dan lebih besar daripada pertumbuhan kepiting betina.Kata kunci: Distribusi, kepiting bakau, mangrove, pertumbuhan, salinitasABSTRACTMud crab (Scylla spp.) is one of the potential fishery commodities to be developed due to its high economic value. The mangrove area in Golo Sepang Waters is the largest producer of mangrove crabs in West Manggarai, East Nusa Tenggara. This study was conducted to analyze the distribution and growth pattern of mud crabs (Scylla spp.) in Golo Sepang, East Nusa Tenggara. Mud crab samples were captured in March – May 2022 at the sites regularly used by fishermen to catch the crabs using folded traps (bubu). A total of 870 measured samples consisting of three species of mud crabs: S. serrata, S. paramamosain, and S. olivicea. The distribution pattern of mud crabs at the study location as per salinity and temperature patterns. The growth of S. serrata at the study site had an isometric pattern while S. paramamosain and S. olivacea had a positive allometric pattern. The growth of male crabs is faster and bigger than the growth of female crabs.Keywords: Distribution, mud crab, mangrove, growth, salinity
Co-Authors Aditya Bramana Awaludin Syamsuddin Dadan Zulkifli Dadan Zulkifli Deni Aulia Hendra Irawan Iya Purnama Sari Jabbar, Meuthia Aula Patrisius Toma Ratna Suharti Yuni Fast Track Anjeli Sihombing