Komunitas dan Keanekaragaman Ascidia di Pesisir Minanga, Malalayang Satu, Kota Manado

Abstract

Ascidian is one of the biota components that make up coral reefs, which has many biological, ecological and pharmaceutical benefits. This makes Ascidian a very attractive target due to its high and unique diversity among marine invertebrates. The purpose of this study is to provide information about the Ascidia community and diversity in the Minanga Coast, Malalayang Satu, Manado City. This research was conducted for 3 (three) months from April to June 2022 with the location of data collection is Minanga Divers Coast. Data were collected using the visual census method at a depth of 7 and 14 m with a transect length of 50 m and a width of 5 m. Data analysis was carried out to obtain the value of species composition and density and ecological index. The results obtained: 1). Ascidia found were 14 species consisting of 12 species at a depth of 7 m and 10 species at a depth of 14 m. 2). The highest species composition and density values were Ascidia P. aurata on D. molle 3). The Ascidia diversity index at the study site was was 2.00 at a depth of 7 m and 1.84 at a depth of 14 m.

Keyword : Ascidian, species composition, density, diversity.