STRUKTUR KOMUNITAS IKAN DI SUNGAI LULAK DAN SUNGAI GENDIR KABUPATEN BANGKA BARAT

The Community Structure of Fish in Lulak Stream and Gendir Stream of West Bangka Regency.

Abstract

ABSTRACT

Aditia (2021611001) The  Community Structure of Fish in Lulak Stream and  Gendir Stream of West Bangka Regency.

(Supervisors: Wahyu Adi, S.Pi.,M.Si dan Andi Gustomi, S.Pi.,M.Si)

            The waters of the stream in west Bangka nowadays facing the threat of the deforestation or the fragmentation of the alteration of land function such as for the plantations, agriculture mostly for the program of rice field print that makes the forest area and the watershed threaten the fish habitats, for instance the Lulak stream and gendir stream in Kelapa, West Bangka regency.  The goals of this study is to examine the diversity of the fish, examine the community structure  and examine the relation between the waters quality  with the fish diversity in Lulak Stream and Gendir Stream. The data was took and conducted in February 2020 using the gill net and dip net. The result showed that the diversity value  has the index with the amount is 1,948 for Lulak Stream and 1,881 for Gendir Stream with the category is moderate.  The community structure of fish in Lulak stream and Gendir stream was dominated by Cyprinidae with 5 species from 14 species based on what was found  in both of the stream.  There was 14 fish  with 12 of fish species found in Lulak stream and 11 fish in Gendir stream  that dominated by cyprinidae ( Puntius binotatus, Puntius lineatus, Cyclocheilichthys apogon dan Rasbora chepholataenia). The  Physic and Chemistry factors in Lulak Stream and Gendir Stream supports the survival life of the cyprinidae that dominate both of the river.

Keywords: Diversity, Fish , Stream, fresh waters, West Bangka