Water Quality And Zooplankton Community Structure Of Tembat River, Hulu Terengganu
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Date
2016-09
Authors
Saidin, Ahmad Nazri
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Abstract
Study on zooplankton and composition based on spatial and temporal of Tembat River, Hulu Terengganu been carried out. Four sampling stations been divided to upper zone (Station 1 and Station 2) and lower zone (Station 3 and Station 4) and sampling been carried out monthly started from February 2012 until May 2013. A total of 16 species of rotifers, 2 species of cladocerans and 3 species of copepods have been recorded in this study. The highest abundance and species number was recorded at upstream zone and dominance by rotifers group compared to cladocerans and copepods. There is no significant different (p>0.05) between zooplankton composition by sampling locations but show significant different (p<0.05) with dry and wet season. The highest number of zooplankton species recorded at Station 1 with 20 species followed by Station 2 (18 species), Station 4 (17 species) and the lowest at Station 3 (15 species). Asplanchna priodonta was the dominant zooplankton species occupying the upstream and downstream zones during this study. Based on rarefaction analysis, the estimation of zooplankton species at Station 1 was 20 species, followed by Station 2 and Station 4 with 18 species, and the lowest was at Station 3 with 16 species. In general, the water quality of the Tembat River was considered good according to Water Quality Index (WQI) classification which was in Class I. Several water quality parameters such as total suspended solids (TSS, mg/L), dissolved oxygen (DO, mg/L) and water temperature (⁰C) influenced the abundance of zooplankton during the study period. The highest
Shannon-Weiner diversity index was recorded at Station 4 with 2.532, followed by Station 3 (2.527), Station 2 (2.447) and lowest at Station 1 (2.362).
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Zooplankton and composition based on spatial and temporal , of Tembat River.