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A study on the population and habitat of oriental hard clam (Meretrix meretrix Linnaeus, 1758) along coast of Tarakan City had been conducted from februari to april 2009. Oriental hard clam and associated macrozoobenthic animals were sampled (10 m x 10 m) at 6th fixed stations with 3 replicates which were spred along the coast of Tarakan. The abiotic enviromental factors measured are water temperature, dissolved oxygen, visibility, depth, pH, turbidity, total suspended solid, total dissolved solid and sediment properties (particle composition and sediment pH). During this study we have discover the density, diversity and distribution of oriental hard clam. The results show that the density of oriental hard clam is very low and indicates the over-exploitation on this species. We also discover by the Wilhm criteria that the low mark for diversity of makrozoobenthic community indicates that the waters are polluted at medium level.
Keyword : Animal communities, macrozoobenthos,oriental hard clam, population, habitat
