Trophic status of Limboto lake in Gorontalo Province

Abstract

Limboto Lake were on the worried condition now. It happened because of the process depreciation and sedimentation which caused by sedimentation and waste ground that threaten the existence of ecosystem in the future. The purpose of the research is to determine trophic status of Limboto Lake in Gorontalo Province. Measurements of several water quality parameters were carried out insitu at 8 (eight) stations conducted by sampling and laboratory analysis of several parameters of water quality carried out at the Manado Research and Standardization Reasearch Centre. To determine the trophic status of Limboto Lake waters calculated using the Trophic State Index (TSI) of Carlson. The results showed that the average value Trophic State Index (TSI) of Limboto Lake range from 50.3071 - 61.9297. This shows that the trophic status of Limboto Lake waters is classified as eutrophic.