DIVERSITY OF ECHINODERMATA FAUNA IN GILI MENO, NORTH LOMBOK DISTRICT, WEST NUSA TENGGARA

Abstract

Gili Meno (NTB, Indonesia) a small island with a fine sand habitat type where seagrass beds become one of the ecosystems scattered around and become the habitat of Echinodermata. Fauna Echinodermata is an invertebrate animal that has thorns on the surface of its skin. Information on the diversity index of Echinoderms will be expected to be the basis of ecotourism development of Echinodermata. Sampling by Random Sampling method and Transect Belt method. The thirteen (13) species of Echinodermata fauna are found to be classified in four classes, namely Echinoidea (sea urchins) represented by four types, Holothuroidea (Sea Cucumber) is represented by four types, and Ophiouroidea (infectious star) is represented by four species and Asteroidea Starfish) represented by one species. The Echinodermata diversity index in Gili Meno is 0.631, where the index value of this species diversity falls into the low category. Waste disposal in the form of food waste around the waters of Gili Meno causes the enrichment of nutrients that have an effect on the blooming of the fight and then the increasing population of sea urchins that consume algae as the main feed source.