Variation in life history responses of Daphnia to toxic Microcystis aeruginosa

被引:61
|
作者
Hietala, J
Reinikainen, M
Walls, M
机构
[1] ABO AKAD UNIV,DEPT BIOL,SF-20520 TURKU,FINLAND
[2] MAJ & TOR NESSLING FDN,SF-00260 HELSINKI,FINLAND
基金
芬兰科学院;
关键词
D O I
10.1093/plankt/17.12.2307
中图分类号
Q17 [水生生物学];
学科分类号
071004 ;
摘要
Three clones of Daphnia pulex and two clones of Daphnia longispina were exposed to toxic Microcystis aeruginosa for 21 days in a lifetable experiment. The growth and reproduction of individual daphnids were followed daily to study the long-term effects of toxic Microcystis. Exposure to Microcystis increased mortality, decreased growth, delayed maturation and decreased offspring production, indicating nutritional deficiency and toxic effects. We found variation in life history responses between species and among clones. Our results suggest that toxic cyanobacteria may act as a modifying agent in zooplankton communities at both the species and clonal level.
引用
收藏
页码:2307 / 2318
页数:12
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