Jurnal Penelitian Perikanan Indonesia
Vol 28, No 4 (2022): (Desember) 2022

DINAMIKA POPULASI IKAN KAKAP MERAH (Lutjanus malabaricus) di PERAIRAN PINRANG

Nuraeni L Rapi (Institut Teknologi dan Bisnis Maritim Balik Diwa)
Djumanto Djumanto (Manajemen Sumberdaya Perikanan, Universitas Gadjah Mada, Jl. Bulaksumur, Sleman, DI.Yogyakarta, 55281)
Murwantoko Murwantoko (Budidaya Perairan, Universitas Gadjah Mada, Jl. Bulaksumur, Sleman, DI.Yogyakarta, 55281)



Article Info

Publish Date
28 Dec 2023

Abstract

Ikan kakap merah merupakan salah satu komoditas perikanan yang bernilai tinggi sebagai ikan konsumsi. Pengetahuan sebaran panjang, umur, pertumbuhan, dan mortalitas digunakan untuk mengetahui kondisi stok ikan. Penelitian ini bertujuan untuk menganalisis pertumbuhan, mortalitas, laju eksploitasi dan pola rekrutmen ikan kakap merah (Lutjanus malabaricus). Sampling dilakukan tiap bulan sekali dari April 2019 sampai Maret 2020 di perairan Kabupaten Pinrang. Contoh ikan diperoleh dari hasil tangkapan nelayan gill net,rawai dasar dan bubu. Tiap contoh ikan dilakukan pengukuran panjang menggunakan penggaris dengan ketelitian 0,1 mm. Data frekuensi panjang dianalisis menggunakan paket program FiSAT II untuk mengetahui sebaran panjang, laju pertumbuhan, mortalitas,tingkat eksploitasi dan pola rekrutmen. Total sampel ikan yang dikumpulkan selama penelitian sebanyak 916 ekor. Nilai L∞ sebesar 72,95 cm, nilai K sebesar 0,41/tahun dan nilai t0 sebesar-0,28. Laju mortalitas total sebesar 1,21, mortalitas alami (M) sebesar 0,5, mortalitas penangkapan (F) sebesar 0,71, dan Tingkat eksploitasi (E) sebesar0,59. Rekrutmen berlangsung tiap bulan dengan persentase tertinggi pada akhir musim hujan, puncak musim kemarau dan awal musim hujan. Perlu pengaturan penangkapan tentang ukuran mata pancing dan mata jaring agar tingkat eksploitasi sumberdaya ikan kakap merah berkesinambungan Red snapper is a fisheries commodity with high value as a potential export. Knowledge of the distribution of length, age, growth, and mortality is used to determine fish stocks' condition. This study analyzes the growth, mortality, exploitation rate, and recruitment pattern of red snapper (Lutjanus malabaricus). Sampling has been carried out every month from April 2019 to March 2020 in Pinrang Regency waters. Fish samples were obtained from the catch of gill net fishermen, bottom longlines, and traps. Each fish sample is measured using a ruler to a length of 0.1 mm. Long frequency data were analyzed using the FiSAT II program package to determine the length distribution, growth rate, mortality, exploitation rate, and recruitment patterns. The total fish samples collected during the study were 916 individuals. The L∞ value is 72.95 cm, the K value is 0.41 / year, and the t0 value is -0.28. The total mortality rate is 1.21, natural mortality (M) is 0.5, fishing mortality (F) is 0.71, and the exploitation rate (E) is 0.59. Recruitment occurs every month with the highest percentage at the end of the rainy season, the dry season's peak, and the beginning of the rainy season. Fishing arrangements are needed about size hook and mesh size  so that the level of exploitation of red snapper resources is sustainable.

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Journal Info

Abbrev

jppi

Publisher

Subject

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

Description

Jurnal Penelitian Perikanan Indonesia accepts articles in the field of fisheries, both sea and inland public waters. The journal presents results of research resources, arrest, oceanography, environmental, environmental remediation and enrichment of fish ...