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The spatial and temporal variations in the rocky intertidal molluscs communities were studied with reference to tide and seasonal variation at four rocky sites - Manora, Buleji, Nathiagali and Cape Monze along the Karachi coast. The average values of species richness was high (3.63) at Manora followed by Cape Monze (3.25), Nathiagali (3.22) and Buleji (3.06). The Species Richness and Hill diversity number N1 was inversely proportional to tidal height at Manora, Buleji and Nathiagali whereas reverse was the case at Cape Monze. The average values of Evenness (E5) were directly proportional to tidal level at Manora, Nathiagali and Cape Monze whereas no relation with tidal zone was found at Buleji. The average value of Hill diversity number (N1) from the total area was high at Manora (6.47) followed by Nathiagali (6.33), Cape Monze (5.65) and Buleji (5.31) shores. Molluscan species were more evenly distributed at Nathiagali (0.67) and somewhat less evenly at Buleji (0.64), Manora (0.63) and Cape Monze (0.61). Seasonal variation in E5 values was less evident in the four sites
Solaha Rahman and Sohail Barkati . (2010) DIVERSITY OF BENTHIC MACROMOLLUSCAN COMMUNITIES ON THE ROCKY SHORES OF KARACHI COAST, PAKISTAN, , Volume 7, Issue 1 & 2.
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