Biodiversity of Invertebrates in Kemantren Coast, Lamongan

Kemantren beach is located in the Kemantren Village, Paciran District, Lamongan Regency. This beach is consists of sand and coral substrate. Kemantren beach is one of the small coastal islands of Java that has already reclaimed with spot of high ecotourism potency and habitat for numerous types of invertebrate. Unfortunately, there were no previous records about invertebrate biodiversity in this area. The purpose of this research was to identify various invertebrate species inhabiting Kemantren beach, Lamongan by describing their morphological characteristics and habitat. Specimens were collected from intertidal and shallow subtidal zone using sweeping techniques along the coastal line. Morphological and habitat data were analysed descriptively. Results showed that there were seven invertebrates phyla inhabited Kemantren coastal water; Mollusca, Annelida, Porifera, Arthropoda, Echinodermata, Coelenterata, and Platyhelminthes. We had identified a total of 19 bivalves and 33 gastropods species distributed among 20 families. Invertebrate biodiversity in Kemantren coastal consisted of 100 species belonged to 79 genera, 45 families and 9 classes (Gastropoda, Bivalvia, Polychaeta, Demospongiae, Crustacea, Holothuroidea, Ophiuroidea, Anthozoa and Turbelaria). Identification of invertebrates is useful tool for biodiversity, management, conservation and development of science. We recommend exploring potential of these species as source of sustainable income for the locals. Keywords—biodiversity, invertebrate, morfological, habitat