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All Journal Jurnal Pengelolaan Perairan SIGANUS: Journal of Fisheries and Marine Science
Budiman Yunus
Universitas Hasanuddin
Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Immunology & microbiology

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Struktur Ukuran Ikan Tongkol Lisong (Auxis rochei Risso,1810) di Perairan Majene Sulawesi Barat Muhammad Arifin; Budiman Yunus; Moh Tauhid Umar; Muhammad Nur; Ady Jufri
SIGANUS: Journal of Fisheries and Marine Science Vol 1 No 1 (2019): SIGANUS: Journal of Fisheries and Marine Science
Publisher : Universitas Sulawesi Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31605/siganus.v1i1.488

Abstract

Penelitian ini bertujuan menganalisis struktur ukuran ikan tongkol yang tertangkap di perairan Majene, Provinsi Sulawesi Barat. Pengambilan sampel dilaksanakan selama enam bulan sejak Mei hingga Oktober 2018. Penangkapan ikan menggunakan alat tangkap jaring lingkar dan pancing. Ikan diukur panjang, ditimbang beratnya, dibedah, diidentifikasi jenis kelamin dan tingkat kematangannya gonadnya. Analisis Indeks Kematangan Gonad (IKG) dilakukan. Berdasarkan hasil penelitian jumlah ikan tongkol diperoleh selama penelitian sebanyak 372 ekor ikan (216 jantan dan 156 betina). Kisaran panjang total ikan tongkol lisong (A. rochei) yang tertangkap di Perairan Majene berkisar 16,20 – 29,80 cm. Sebaran frekuensi panjang ikan tongkol lisong (A. rochei) yang tertangkap di Perairan Majene didominasi oleh dua kelas interval yakni pada kelas interval 18 – 20 cm dan kelas interval 26-28 cm. Nilai IKG pada ikan tongkol lisong yaitu berkisar 1.5641-5.6401 (betina) dan 1.3846-7.0727 (jantan). Nilai IKG ikan tongkol lisong (A. rochei) tertinggi diperoleh di bulan Agustus yang diduga merupakan puncak pemijahan bagi ikan tongkol.
Kajian Wawasan Pengetahuan Petani-Tambak Terhadap Perilaku “Silvofishery” Di Pesisir Pantai Timur Kabupaten Sinjai (A Study of Farmer Knowledge on “Silvofishery” Behavior in East Coast of Sinjai District) Budiman Yunus
Jurnal Pengelolaan Perairan Vol. 1 No. 1 (2018)
Publisher : Program Studi Manajemen Sumber Daya Perairan

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Abstract

One of the procedures of coastal ecosystem management is the development of the concept of silvofishery that combines the fishpond with the mangrove vegetation in it. The insight of sivofishery as part of environmental education will contribute to the behavior of farmer rsilvofishery in the coastal ecosystem. Therefore, this research is conducted to determine the effect of 1) environmental insight, ecosystems and conservation, 2) environmental attitudes and 3) environmental motivation, ecosystem and conservation on silvofishery-oriented behaviors. By conducting a survey and questionnaire data obtained from 200 farmers in East Sinjai subdistrict, and with Structural Equation Model (SEM) analysis through Amos 2.2 program, the following research results are obtained; 1) the insight has no direct effect on silvofishery-oriented behavior; 2) attitudes has effect on the behavior of silvofishery insight; 3) insight has no direct effect on motivation; 4) motivation has a direct effect on silvofishery-oriented behavior, especially on embankment and ditch patterns.Keywords: Silvofishery insight and behavior, coastal ecosystem
Co-Authors Ady Jufri Moh. Tauhid Umar MUHAMMAD ARIFIN Muhammad Nur