Format

Send to

Choose Destination
Bull Environ Contam Toxicol. 2015 Oct;95(4):542-7. doi: 10.1007/s00128-015-1620-7. Epub 2015 Aug 7.

Preliminary Assessment of Cyanobacteria Diversity and Toxic Potential in Ten Freshwater Lakes in Selangor, Malaysia.

Author information

1
Biology Department, Faculty of Science and Mathematics, Sultan Idris Education University, 35900, Tanjung Malim, Perak, Malaysia. somcit@fsmt.upsi.edu.my.
2
Biology Department, Faculty of Science and Mathematics, Sultan Idris Education University, 35900, Tanjung Malim, Perak, Malaysia.

Abstract

Toxic cyanobacteria blooms are increasing in magnitude and frequency worldwide. However, this issue has not been adequately addressed in Malaysia. Therefore, this study aims to better understand eutrophication levels, cyanobacteria diversity, and microcystin concentrations in ten Malaysian freshwater lakes. The results revealed that most lakes were eutrophic, with total phosphorus and total chlorophyll-a concentrations ranging from 15 to 4270 µg L(-1) and 1.1 to 903.1 µg L(-1), respectively. Cyanobacteria were detected in all lakes, and identified as Microcystis spp., Planktothrix spp., Phormidium spp., Oscillatoria spp., and Lyngbya spp. Microcystis spp. was the most commonly observed and most abundant cyanobacteria recorded. Semi-quantitative microcystin analysis indicated the presence of microcystin in all lakes. These findings illustrate the potential health risk of cyanobacteria in Malaysia freshwater lakes, thus magnifying the importance of cyanobacteria monitoring and management in Malaysian waterways.

KEYWORDS:

Cyanobacteria; Eutrophication; Freshwater lakes; Microcystin

PMID:
26248788
DOI:
10.1007/s00128-015-1620-7
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Springer
Loading ...
Support Center