Sebuah ANALISIS ASPEK DINAMIKA POPULASI IKAN CAKALANG (KATSUWONUS PELAMIS) YANG DIDARATKAN DI PELABUHAN PERIKANAN PANTAI (PPP) PONDOKDADAP SENDANGBIRU KABUPATEN MALANG, JAWA TIMUR ANALISIS ASPEK DINAMIKA POPULASI IKAN CAKALANG (KATSUWONUS PELAMIS)
Abstrak
Ikan cakalang (Katsuwonus pelamis) merupakan salah satu komoditas ekspor terbesar di
Pelabuhan Perikanan Pantai Pondokdadap. Analisis mengenai aspek dinamika populasi
merupakan langkah penting dilakukan untuk mengetahui kondisi stok perikanan ikan cakalang
yang berkelanjutan di perairan Samudera Hindia. Pengambilan data panjang dilakukan di TPI
Sendangbiru selama bulan Maret - Juli tahun 2022 dengan total sample sebanyak 3875 ekor.
Data sebaran frekuensi panjang (cm) dianalisis menggunakan program FAO-ICLARM Stock
Assesment Tools (FISAT) untuk menduga parameter pertumbuhan, mortalitas, eksploitasi,
rekrutmen, yr/br dan prediksi stok. Hasil analisis parameter populasi sebagai berikut, panjang
asimtot (L∞) 68,39 cm; koefisien laju pertumbuhan (K) 0,31 per tahun dan umur teoritis (t0) -
0,42 tahun. Nilai mortalitas total (Z) 4,27 per tahun; mortalitas alami (M) 0,66 per tahun dan
mortalitas penangkapan (F) 3,61 per tahun. Laju eksploitasi (E) 0,85 per tahun termasuk
overexploited. Puncak rekrutmen terjadi pada bulan Juni dengan nilai 16,53%. Analisis yr
mendapatkan nilai 0,019 per tahun dan br 0,054 per tahun. Nilai dugaan potensi maksimum
lestari (MSY) sebesar 46622 ton dengan nilai upaya penangkapan optimum (FMSY) sebesar
539 trip. Tingkat eksploitasi memiliki nilai sebesar 457% dan tingkat pemanfaatan sebesar 1%.
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Penulis
Hak Cipta (c) 2023 Bidari Rahma Nugraeni
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