Freshwater zooplankton of Bakun dam Sarawak, Malaysia

Shabdin, Mohd Long (2014) Freshwater zooplankton of Bakun dam Sarawak, Malaysia. Asian Journal of Biological and Life Sciences, 3 (2). pp. 120-124. ISSN 2278 - 5957

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Bakun Dam was fully reached its supply level of 228 m above sea level (ASL) on 9 March 2012. Since it form a reservoir, no report on zooplankton is published. Therefore, initiative has been made to study the zooplankton community and its relation to the subsurface water parameters in the reservoir. Subsurface zooplankton is sampled using plankton net and water parameters are measured using Eutech Instrument. The water parameters recorded in Bakun dam reflected the freshwater lake in tropical countries. Five species of zooplankton are recorded in Bakun Dam, namely Neodiaptomus handeli, Tropodiaptomus sp. Daphnia sp., Ceriodaphnia cornuta and Brachionus quadridentatus splendidus. Calanoida was dominant (maximum value: 20.49x106) in Bakun Dam, followed by Cladocera (maximum value: 8.91 x106) and Ploima (Rotifera) (maximum value: 1.77x106). The water temperature influenced the species diversity and evenness of zooplankton. The suitable water temperature in the reservoir possibly increases the phytoplankton densities which serves as food and enhance the density of zooplankton. Furthermore, with low number of zooplankton species, the competition for food amongst the species is also less, thus the opportunist species has an opportunity to increase their population rapidly and become dominant in the area.

Item Type: Article
Uncontrolled Keywords: Freshwater zooplankton , Water parameters , Bakun Dam , unimas, university, universiti, Borneo, Malaysia, Sarawak, Kuching, Samarahan, ipta, education , research, Universiti Malaysia Sarawak
Subjects: Q Science > Q Science (General)
S Agriculture > SH Aquaculture. Fisheries. Angling
Divisions: Academic Faculties, Institutes and Centres > Faculty of Resource Science and Technology
Depositing User: Karen Kornalius
Date Deposited: 24 Jun 2015 02:22
Last Modified: 24 Jun 2015 02:22

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