KEANEKARAGAMAN GASTROPODA DAN BIVALVIA DI PERAIRAN PANTAI TELUK PANASAHAN PAINAN SUMATERA BARAT

Nurdin, Jabang and Suprijatna, Jatna and Budiman, Arie and Patria, Mufti. P (2010) KEANEKARAGAMAN GASTROPODA DAN BIVALVIA DI PERAIRAN PANTAI TELUK PANASAHAN PAINAN SUMATERA BARAT. In: Seminar dan Rapat Tahunan BKS-PTN Wilayah Barat ke-21, 10-11 May 2010, Universitas Riau.

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Abstract

Diversity of the marine bivalve and Gastropoda in the coastal water painan Panasahan Bay, West Sumatera were studied from December 2009 to February 2010. The sampling were located at Southern part (mudflats from mangrove forest) and Northern part (sandflats, gravel-sandflats) of Panasahan bay. The results showed that there were 10 Bivalve and 15 Gastropoda species. The Nailonella sayoae species of Bivalve group were the common and widely distributed bivalve species. From the Gastropoda group, Telescopium snails were the commom. The distribution maen density and diversity of the Bivalve and Gastropoda were difference at each location. Density and distribution of the intertidal theses benthic influenced by particles size and environmental factors. As diversity index (F{) ranged 1,92- 2,16. The highest diversity index was 2,16 from the Gastropoda group at southern part of Panasahan Bay and lowest was 1,92 from Bivalve group at Northern part of Panasahan Bay. The results of observation, were found 4 species of edible interidal bivalve. These bivalves are hand harvested, for domestic consumption, mainly women and children, with the empty shell sold traders, Intertidal bivalves the economic potential are Anadara antiquata and Gafrarium tumidum clams. Keywords: Gastropoda, bivalve, diversity, snails, clams, Anadara antiquata, Gafrarium tumidum.

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