River water with high iron concentration and low pH causes mortality of lamprey roe and newly hatched larvae.

@article{Myllynen1997RiverWW,
  title={River water with high iron concentration and low pH causes mortality of lamprey roe and newly hatched larvae.},
  author={K Myllynen and E Ojutkangas and Mikko Nikinmaa},
  journal={Ecotoxicology and environmental safety},
  year={1997},
  volume={36 1},
  pages={43-8}
}
The effects of prevailing water quality of Perhonjoki River in Western Finland on the hatchability of lamprey roe and survival of newly hatched larvae were investigated. The river flows through sulfide-rich soils, and is characterized by high average total iron (1.5-3 mg liter-1) and aluminum (0.45-0.6 mg liter-1) concentrations and relatively low pH commonly 5.5 to 6.0, with acidification peaks below pH 5. The hatchability of lamprey roe was markedly reduced under these conditions as compared… CONTINUE READING

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