Effects of chronic external gamma irradiation on growth and reproductive success of Daphnia magna.

@article{Gilbin2008EffectsOC,
  title={Effects of chronic external gamma irradiation on growth and reproductive success of Daphnia magna.},
  author={Rodolphe Gilbin and Fr{\'e}d{\'e}ric Alonzo and Jacqueline Garnier-Laplace},
  journal={Journal of environmental radioactivity},
  year={2008},
  volume={99 1},
  pages={134-45}
}
Aquatic invertebrates (water flea Daphnia magna) were exposed to low dose rates of external gamma radiation (from 0.4 to 31mGyh(-1)) over a 23-day period (i.e. 5 broods). Gamma radiation caused changes in neither survival nor somatic growth. Mass-specific respiration rate was significantly lower at 31mGyh(-1) than in the control. Reproduction was affected through early release and reduced size of broods after 15 days of exposure at 31mGyh(-1) (broods 3-5), resulting in a 21% fecundity decrease… CONTINUE READING
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