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Abstract
Kerang lokan Geloina erosa merupakan salah satu kelompok Bivalvia yang hidup dan berkembang di Ekosistem Mangrove. Kerang ini telah dimanfaatkan oleh penduduk sekitar sebagai biota konsumsi dan memiliki kandungan gizi yang tinggi. Salah satu daerah penghasil kerang lokan di Kota Bengkulu adalah Muara Jenggalu, terletak di Jalan Jenggalu Kelurahan Lingkar Barat Kota Bengkulu. Permintaan masyarakat yang cenderung meningkat setiap tahun menyebabkan meningkatnya eksploitasi terhadap kerang lokan. Pemanfaatan kerang lokan dieksploitasi secara langsung di ekosistemnya yaitu ekosistem mangrove. Pengambilan kerang lokan secara terus menerus dan banyaknya aktivitas manusia di sekitar kawasan Muara Jenggalu dikhawatirkan dapat mengakibatkan terjadinya penurunan ketersediaan stok kerang lokan di ekosistem mangrove Muara Jenggalu. Penelitian ini bertujuan untuk menganalisis hubungan panjang berat dan nisbah kelamin kerang lokan di Muara Jenggalu Kota Bengkulu. Pertumbuhan kerang lokan di Muara Jenggalu bersifat allometric negative (<3) dimana pertumbuhan panjang cangkang lebih dominan daripada pertumbuhan berat. Persentase jumlah kerang lokan berjenis kelamin jantan yaitu 61,96% dan berjenis kelamin betina 38,04%.
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