Phytoplankton community as bioindicator of fertility in belawan river

3rd International Conference on Biological Sciences and Biotechnology

Yeanny, Mayang Sari^1

Department of Biology, Faculty of Mathematics and Natural Sciences, University of Sumatera Utara, Kampus USU, Jl. Bioteknologi No.1, Padang Bulan, Medan

20155, Indonesia^1

关键词: Aquatic biota;    Bacillariophyceae;    Diversity index;    Human activities;    Phytoplankton community;    Pollution level;    Relative abundance;    Sumatera Utara;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/130/1/012030/pdf
DOI  :  10.1088/1755-1315/130/1/012030

来源: IOP

【 摘 要 】

Belawan River is an important river for the Medan residents and its surroundings. It serves as the main raw material for the local drinking water company, as well as domestic, industrial, hotel and tourism. Many human activities had led to the declining condition of water in the river throughout the year. One way to approach the concept of bioindicator is by knowing Abundance, Relative Abundance, Frequency of Attendance, equitability, dominance, and diversity of the phytoplankton itself. Results indicated that the phytoplankton community was from 3 different classes: Chlorophyceae, Bacillariophyceae, and Cyanophyceae. Phytoplankton individual abundance was around 2612 to 17755 ind / L. The diversity index was around 2.15 to 2.58, which is considered to have low to moderate diversity with high pollution level. Equitability Index was approaching 0, with relatively high domination from Sphaeroplea and Asterionella. The water quality that influences the diversity of phytoplankton as bioindicator was dissolved oxygen.