CD Skripsi
Struktur Komunitas Bivalva Pada Ekosistem Mangrove Desa Apar Kecamatan Pariaman Utara Kota Pariaman Provinsi Sumatera Barat
Mangrove ecosystem in the Apar Village inhabited by numerous aquatic organisms, including bivalve. A research aim to determine the community structure of bivalve in the mangrove ecosystem has been conducted on July 2019. There was 2 station, with 3 plots/station and 5 subplots/plot. In each subplot, the bivalve were collected by hand. Result shown that there was 3 species of bivalve, namely Polymesoda erosa, Geloina erosa, and Geloina expansa. The diversity index (H’) was 0,681-1,356, the uniformity index (E’) was 0.061-0.453 and the dominance index (C’) was 0.433-0.703. There was 5 species of mangrove, namely Sonneratia alba, Sonneratia caseolaris, Achantus ilicifolis, Nypa fruiticans and Rhizophora apiculata. The water quality were as follows : temperature : 26-32 0C; soil temperature 29-33; pH 7; soil pH was 5-6 and Salinity was 4-22 ‰.
Keywords: Geloina expansa, Mangrove density, Diversity index, Dominance indeks
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