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All Journal PENA AKUATIKA : JURNAL ILMIAH PERIKANAN DAN KELAUTAN Jurnal Laut Pulau
Suradi Wijaya Saputra
Universitas Diponegoro
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Social Sciences

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LAJU EKSPLOITASI IKAN KEMBUNG LELAKI (Rastrelliger kanagurta) BERDASARKAN HASIL TANGKAPAN YANG DIDARATKAN DI PPP TASIKAGUNG REMBANG Ulaika Humul Faizun; Suradi Wijaya Saputra; Wiwiet Teguh Taufani
Pena Akuatika Jurnal Ilmiah Perikanan Dan Kelautan Vol 20, No 2 (2021): PENA AKUATIKA JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Fakultas Perikanan Universitas Pekalongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31941/penaakuatika.v20i2.1332

Abstract

AbstrakIkan Kembung Lelaki (Rastrelliger kanagurta) merupakan komoditas perikanan yang bernilai ekonomis penting. Adanya kegiatan penangkapan ikan Kembung Lelaki secara terus menerus menimbulkan kekhawatiran terhadap kondisi stok ikan. Penelitian ini bertujuan untuk mengetahui pertumbuhan, laju mortalitas dan tingkat eksploitasi ikan Kembung Lelaki. Penelitian dilakukan pada bulan Agustus-November 2020 di PPP Tasikagung, Rembang. Pengambilan sampel menggunakan metode sistematik random sampling. Hasil penelitian diperoleh kisaran panjang ikan yang tertangkap 130-260 mmTL dan bobot 24-198 gram. Analisis panjang bobot menunjukkan ikan bersifat isometrik dengan persamaan W = 0,0000091L3,038. Analisis pertumbuhan L∞ sebesar 270 mmTL dengan koefisien pertumbuhan (K) 0,63/tahun, dan t0 -0,139. Mortalitas total (Z) 1,31/tahun, mortalitas alami (M) 0,71/tahun dan mortalitas penangkapan (F) 0,60/tahun. Tingkat eksploitasi (E) sebesar 0,45/tahun yang menunjukkan tingkat eksploitasi rendah (under fishing). Kata kunci: Ikan Kembung Lelaki, Pertumbuhan, Mortalitas, Tingkat Eksploitasi, PPP Tasikagung AbstractIndian Mackerel (Rastrelliger kanagurta)is fishery commodity that has important economic value. The existence of catching activities continuously raises concerns about the condition of fish stocks. The purposes of this research were to find out the growth, mortality and exploitation rate of Indian mackerel. The study was conducted in Agustus-November 2020 at PPP Tasikagung Rembang used sistematyc random sampling method. The results showed that the length range 130-260 mmTL and weighing 24-198 grams. Weight length analysis showed growth pattern were isometric with the equation W = 0,0000091L3,038. Growth analysis showed L∞ was 270 mmTL, growth coefficient (K) 0,63/year, and t0 -0,139/year. Total fish mortality (Z) was 1,31/year, natural mortality (M) was 0,71/year and fishing mortality (F) was 0,60/year. The level of exploitation (E) was 0,45/year, indicating the level of under fishing.Keywords: Indian Mackerel, Growth, Mortality, Explitation Rate, Fishing Port Tasikagung
Parameter Pertumbuhan (L∞, K , T0) dan Tingkat Kematangan Gonad Ikan Cakalang Katsuwonus pelamis imanuel vt soukotta; Suradi Wijaya Saputra
Jurnal Laut Pulau: Hasil Penelitian Kelautan Vol 2 No 1 (2023): Jurnal Laut Pulau
Publisher : Prodi Ilmu Kelautan Fakultas Perikanan dan Ilmu Kelautan Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/jlpvol2iss1pp59-66

Abstract

This research was conducted to determine growth patterns and gonadal maturity levels, samples were taken randomly when the fishermen unloaded the fish from the boat. The results showed that skipjack tuna (Katsuwonus pelamis) obtained a growth coefficient (K) of 1.85 per year with an asymptotic length of 75.90 cm, t0 -0.06501 years with T max maximum age = 3/K+t0 of 1 .5 years and an Rn value of 0.169. After plugging the growth value into the von Bertalanffy equation for skipjack tuna caught in the Banda seas of Maluku Province, the equation Lt=75.90{1-e-0.14(t+0.06501)} for skipjack tuna caught in Banda Sea waters. Visually, the results of observations in the field showed that female skipjack tuna entered TKG II at body length 44-59 cm, gonad length was 17.4 cm and male skipjack tuna reached TKG II at body length 43-58 cm, gonad length was 16.5 cm. The results showed that entering TKG III visually at body length measures 50.5-73.5 with a gonad length of 20 cm for female skipjack tuna and male skipjack tuna for TKG III dominates with a body length size of 70.5-79.5 cm with a gonad length of 20 cm
Co-Authors imanuel vt soukotta Ulaika Humul Faizun Wiwiet Teguh Taufani