Behavior and distribution study of the two Mollusks,(Nerita spp. and Nassarius spp.) on a sheltered rocky shore at Pulau Kapas

Abstract

The distribution and behavior of Nassarius spp. and Nerita spp. on the rocky shore at Pulau Kapas were studied. Nine stations were selected at random for the purpose of the study. The distribution of these gastropods (Nerita spp. and Nassarius spp.) is governed by their feeding habits. Nassarius spp. stay inactive during the low tide period and is active during the high tide period such that Nassarius spp. tend to be found higher up the shore.