A survey on effects of environmental parameters on diversity and density of bivalves in the Iranian coasts of Gulf of Oman

For study on effect of some environmental factors such as bottom structure, depth, dissolved oxygen on density and diversity of bivalves in the Iranian coasts of Gulf of Oman ( Hormoz strait – Gwatr Bay ) 10 stations were selected. A 0.1 m2 Van-Veen grab sampler was used for collecting sediments in addition to the physical and chemical parameters such as temperature, salinity, dissolved oxygen and pH using the CTD device. 95% Ethanol and Rosebengal were used for fixing and staining. In this study, 43 genera of 19 families of bivalves were identified. Lucinidae (55%), Nuculidae (13%), Tellinidae (7%), Veneridae (5%) and Yoldiidae (5%) were dominant groups. Pearson analysis results showed correlation among bivalves abundance and pH , dissolved oxygen and silt ( P