Struktur Komunitas Gastropoda di Zona Intertidal Desa Watukarung, Kabupaten Pacitan, Jawa Timur.
Poeteri, Nandike Ayudiah
Bengen, Dietriech G.
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Gastropod is a class with the biggest number of species from the mollusk phylum, since it is able to adapt with any type of habitat. Watukarung Village, which has unique characteristic of its rocky beaches and sand dunes, is one of many habitats of gastropods in the intertidal zone. Thus, a basic information on the structure of the gastropods community in the area is required. Research was conducted in August 2014 in Ngalorombo Beach, Pasir Putih Beach, and Kasap Beach. Systematic sampling was applied using the quadratic plot of 1 x 1 m2, while data analyses comprised of density, Shannon-Wiener index, Eveness index, Simpson index, and correspondence analysis. The result showed that the gastropods were found consist of 8 families, 9 genera, and 13 species. The highest density and the most diverse of the category were ini Kasap Beach. Eveness index and Simpson index of the species in the three beaches were in the low category. There was a tendency of the gastropods to live in the coarse sand and stones with good water quality as their habitat, which was good for the gastropods live, as shown in the result of the correspondence’s analysis.