Freshwater zooplankton of Bakun dam Sarawak, Malaysia
Freshwater zooplankton of Bakun dam Sarawak, Malaysia
复制标题
马来西亚砂拉越巴贡水坝的淡水浮游动物
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
M. Shabdin
中科院分区：
文献类型：
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作者：
M. Shabdin
巴贡大坝于2012年3月9日完全达到海拔228米的供水水位。由于它是一个水库，所以没有关于浮游动物的报道。因此，对水库浮游动物群落及其与地下水参数的关系进行了研究。使用浮游生物网对地下浮游动物进行采样，并使用Eutech仪器测量水参数。巴贡大坝记录的水参数反映了热带国家的淡水湖。巴贡大坝共记录浮游动物5种，分别为汉氏新镖水蚤、热带镖水蚤、水蚤、角网纹蚤和四齿臂尾轮虫。巴贡坝以哲水蚤属（Calanoida）最多（20.49 × 106），枝角类（Cladocera）次之（8.91 × 106），轮虫类（Ploima）最多（1.77 × 106）。水温影响浮游动物的物种多样性和均匀度。水库适宜的水温可能会增加作为食物的浮游植物的密度，并提高浮游动物的密度。此外，由于浮游动物物种数量较少，物种之间的食物竞争也较少，因此机会主义物种有机会迅速增加其种群并在该地区占主导地位。
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.