Biodiversity of Shrimps on Barumun River,Labuhanbatu Selatan Regency, Indonesia

Abstract

The purpose of this study is to find out the ecological index of shrimp (Crustaceans) and the correlation of aquatic parameters as support for their life. This study was conducted in March-May 2020. The method used by Purposive sampling at 5 points of observation stations is based on information on the presence of shrimp obtained from people living around the waters of the Barumun River. Shrimp samples are captured using gill nets, chasting nets, and fishing rods. Analysis of calculated data includes diversity index, dominance index, and correlation test using SPSS version 22. The results found 4 species of freshwater shrimp in Barumun river, and showed that the most caught shrimp species were Palaemonectes sp.(224) and the lowest species Macrobrachium sp.(100),the highest diversity index at station 1 (1,342) with a low category, the correlation results of physic-chemical factors of aquaticshowed the highest value indicate positive correlation (+) forwater brightness (0.948), and current velocity (0.314). In conclusion, the physical chemical factors of the waters giveaffecttothe diversity of shrimp in Barumun river.