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- Title
Effects of Multi-metal (Cu, Zn, Cd, Cr, and Mn) Mixtures on the Reproduction of Freshwater Rotifer Brachionus calyciflorus.
- Authors
Xu, Xiao-Ping; Xi, Yi-Long; Huang, Lin; Xiang, Xian-Ling
- Abstract
In the field, organisms are usually exposed to mixtures of various metals. However, the effects of multi-metal mixtures on growth and reproduction of rotifers remain unknown. In the present study, effects of multi-metal mixtures (Cu, Zn, Cd, Cr, and Mn) on reproduction of the freshwater rotifer Brachionus calyciflorus were assessed by determining various endpoints, including the ratio of ovigerous females to nonovigerous females, the ratio of mictic to amictic females, the mictic rate, the fertilization rate, the population growth rate, and the resting eggs production. The results demonstrated that reproduction of rotifers was significantly affected by all multi-metal mixtures assessed. Moreover, the ratio of mictic to amictic females was the most sensitive endpoint and might be suitable to evaluate effects of multi-metal mixtures to rotifers.
- Subjects
BRACHIONUS; PHYSIOLOGICAL effects of metals; MIXTURES; MARINE organism reproduction; ANIMAL populations
- Publication
Bulletin of Environmental Contamination & Toxicology, 2015, Vol 95, Issue 6, p714
- ISSN
0007-4861
- Publication type
Article
- DOI
10.1007/s00128-015-1675-5