PAMBUDI, Danang Setyo
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KELIMPAHAN DAN KEANEKARAGAMAN KEPITING BAKAU (Scylla spp.) DI KAWASAN HUTAN BAKAU PASAR BANGGI, REMBANG PAMBUDI, Danang Setyo; Budiharjo, Agung; Sunarto, Sunarto
Jurnal Penelitian Perikanan Indonesia Vol 25, No 2 (2019): (Juni) 2019
Publisher : Pusat Penelitian dan Pengembangan Perikanan, Badan Penelitian dan Pengembangan Kelautan da

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (398.794 KB) | DOI: 10.15578/jppi.25.2.2019.93-102

Abstract

Pantai utara Rembang memiliki kawasan hutan bakau yang masih tersisa di Jawa Tengah. Salah satu habitat kepiting bakau (Scylla spp.) yang penting terdapat di pantai Pasar Banggi. Penangkapan secara intensif menggunakan alat tangkap bubu kepiting. Tingginya permintaan pasar terhadap kepiting bakau mengakibatkan aktivitas penangkapan di pantai Rembang dan sekitarnya berlangsung terus-menerus sehingga dikhawatirkan mengancam kelestariannya. Penelitian ini akan mendata dan menganalisa kelimpahan dan keanekaragaman kepiting bakau di pantai Pasar Banggi yang dilakukan pada bulan Februari-Maret 2019. Metode penelitian yang digunakan adalah line transek kuadrant. Pengamatan dilakukan pada 3 (tiga) stasiun, dimana masing-masing stasiun mempunyai 9 plot yang berukuran 10 x 10m. Pengambilan tangkapan kepiting dilakukan sebanyak 4 (empat) ulangan. Selanjutnya dihitung indek kelimpahan relatif (IKR) dan indek keanekaragaman Shannon-Winner (H?) di setiap stasiun penelitian. Hasil penelitian menunjukkan IKR di setiap stasiun relatif tinggi. Nilai tertinggi (37,74%) terdapat pada stasiun 2 dan terendah (25,16%) pada stasiun 1. Berdasarkan jenisnya, IKR tertinggi (53,5%) terdapat pada Scylla tranquebarica dan terendah (20,8%) pada jenis Scylla serrata. Indeks keanekaragaman (H?) rata-rata di semua stasiun penelitian relatif rendah. Nilai H? tertinggi (1,060) terdapat di stasiun 2 dan terendah (0,697) di stasiun 1. Disarankan segera dilakukan pengelolaan kawasan hutan bakau di pantai Pasar Banggi sehingga sumberdaya kepiting bakau (Scylla spp.) dapat terus berkelanjutan.The north coast of Rembang have mangrove forest that remaining area in Central Java, One of the important habitat of mangrove crab (Scylla spp.) was Pasar Banggi coast. Trap net as the main fishing gear used for mangrove crab in those areas. The high market demand for the mangrove rab their sustainability. This research will record and analyze the abundance and diversity of mangrove crabs on the Banggi Market beach conducted in February-March 2019 by using quadrant transect line methods. Observation made consist of 3 (three) stations where each station has 9 plots with the size of plot of 10 x 10m. Furthermore, the relative abundance indices (IKR) and diversity indices of Shanon-Wienner (H?) were calculated for each station. The results showed that the value of IKR in each station was relatively high. The highest value (37.74%) found at station 2 and the lowest (25.165) at station 1. Based on the species caught, the highest IKR (53.5%) was species of Scylla tranquebarica and the lowest (20.8%) was Scylla serrata The average of H? were low relativelly for all stations with the highest value (1.060) at station 2 and the lowest (0.697) at station 1. It is recommended that mangrove management be carried out in Pasarbanggi coast immediately so that the utilization of mangrove crab resources can continue.