| 三种枝角类的实验生物学和急性毒性试验 |
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| 引用本文： | 杞桑 吴棉国. 三种枝角类的实验生物学和急性毒性试验[J]. 暨南大学学报(自然科学与医学版), 1991, 12(3): 73-78 |
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| 作者姓名： | 杞桑 吴棉国 |
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| 作者单位： | 暨南大学水生态科学研究所，暨南大学水生态科学研究所，暨南大学水生态科学研究所 |
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| 摘 要： |
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| 关 键 词： | 枝角类 毒性试验 大型蚤 隆线蚤 |
THE BIOLOGICAL CHARACTERISTICS OF THREE CLADOCERANS AND ACUTE TOXIC TEST |
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| Qi Sang Wu Miangou Zhang Xian. THE BIOLOGICAL CHARACTERISTICS OF THREE CLADOCERANS AND ACUTE TOXIC TEST[J]. Journal of Jinan University(Natural Science & Medicine Edition), 1991, 12(3): 73-78 |
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| Authors: | Qi Sang Wu Miangou Zhang Xian |
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| Affiliation: | Institute of Aquatic Eco-Science |
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| Abstract: | The biological characteristics of three species cladocerans, Daphnia magna, D. carinata and Ceriodaphnia quadrangula, were comparatively studied under experimental conditions. The longivity of these species are very close to one another. The age of first reproductive individuals of C. quadrangula is shorter and its number of molting and offsprings are lower than the former species for its small size. Models of the increment of body-length and the growth pattern of population are calculated. The intrinsic rate of increase (r_m) is 0.303, 0.370, 0.364, the mean length for a generation(T) is 14.6, 12,1, 10.3, respectively. Results of 48h acute toxic test with Cr~(+6), Cu~(+2), Cd~(+2), and Zn~(+2), for these daphnids show that their EC_(50) concentration are nearly the same, while Cu is the most toxic substance. It suggests that these daphnids are exchangeable when they are used as test animals in bioassay. However. D. carinata and C. quadrangula are more suitable in south due to their easier culture at room temperatures. |
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| Keywords: | Cladocera Daphnia magna D. carinata Ceriodaphnia quadrangula Growth pattern of population Acute toxic test |
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