DIVERSITY OF PHYTOPLANKTON IN THE SWAMP AREA OF THE SAWAH VILLAGE, KAMPAR UTARA SUB-REGENCY, KAMPAR REGENCY, RIAU PROVINCE

Abstract

Abstract

Phytoplankton was sensitive to the environmental changes, and therefore it might be used as bioindicator. A research aims to understand the diversity of phytoplankton in the swamp area of  the Sawah Village was conducted on July to August 2018. There were 3 stations with 3 sampling points in each station. Samples were taken 3 times, once/week, in 3 different stations, namely S1 (natural area), S2 (residential area), S3 (around the plantation area). Water quality parameters measured were temperature, brightness, dept, pH, dissolved oxygen, CO₂, nitrate and phospate. Phytoplankton found were consisted of 32 species that were belonged to 3 classes, namely Bacillariophyceae (7species), Chlorophyceae (12species) and Cyanophyceae (11 species). Phytoplankton abundance ranged from  662–3,266 cells/L,  the species diversity index (H') ranges from 2,7659–3,5726, the dominance index (C) ranges from 0,1161–0,1963 and uniformity index (E)  ranges from 0,874 – 0,8122. Water quality parameters values were as follows:  temperature 25 - 27⁰C, pH 4 - 5, dissolved O₂was 3.7-3.8 mg/L, CO₂ was 1.7-2.7 mg/L, nitrate was 0.171 - 0.231 mg/L, and phosphate was 0.144 - 0.219 mg/L.

Keywords:    Uniformity index, Black water, Peat swamp,Bacillariophyceae, Chlorophyceae