Kuantifikasi Populasi Belangkas Sebagai Dasar Strategi Konservasi di Perairan Mauk
DOI:
https://doi.org/10.31629/akuatiklestari.v9i1.7610Keywords:
Carcinoscorpius rotundicauda, Distribusi Populasi, Tachypleus gigasAbstract
Penelitian terkait kuantifikasi terkait distribusi populasi belangkas di Utara Banten masih minim padahal dengan mengetahui spesies, jumlah, ukuran dan jenis kelamin dapat menjadi dasar ilmiah dalam mendukung strategi konservasi belangkas. Tujuan penelitian ini untuk mengetahui kuantifikasi belangkas yang tertangkap di Perairan Mauk, Kabupaten Tangerang, Provinsi Banten. Penelitian ini dilakukan selama Juli-Agustus 2025 dengan mengikuti 15 trip operasional nelayan jaring insang. Data belangkas tertangkap diidentifikasi secara morfologi untuk kemudian dianalisis berdasarkan spesiesnya terhadap ukuran Panjang total, jenis kelamin dan jumlah. Analisis Hasil penelitian diperoleh jumlah belangkas sebanyak 86% spesies Tachypleus gigas dan 14% Carcinoscorpius rotundicauda. Distribusi panjang total T. gigas berkisar antara 14,795–48,045 cm dengan frekuensi individu terbesar pada interval 16,295–33,445 cm sebanyak 27 ekor. Sementara itu, panjang total C. rotundicauda tercatat antara 16,295–33,445 cm, dengan dominasi pada interval 30,015-33,445 cm sebanyak 7 ekor. Rasio perbandingan jantan dan betina diperoleh jenis T. gigas 1:1 dan C. rotundicauda 1:7. Stadia usia jenis T. gigas didominasi oleh Jantan dewasa 46 ekor, sementara betina dewasa 6 ekor dan betina belum dewasa sebanyak 44 ekor. Jenis C. rotundicauda tertangkap diperoleh betina dewasa 13 ekor, Jantan dewasa 2 ekor dan betina belum dewasa sebanyak 2 ekor. Berdasarkan hasil studi diharapkan dapat mendukung perumusan strategi konservasi dan pengelolaan belangkas yang bersinggungan dengan aktivitas penangkapan penangkapan di wilayah pesisir.
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