Assessing the effects of historical exposure to endocrine-active compounds on reproductive health and genetic diversity in walleye, a native apex predator, in a large riverine system.

Abstract excerpt

In this combined field and laboratory study, we assessed whether populations of native walleye in the Upper Mississippi River experienced altered genetic diversity correlated with exposure to estrogenic endocrine-active compounds (EACs). We collected fin-clips for genetic analysis from almost 600 walleye (13 sites) and subsampled 377 of these fish (6 sites) for blood and reproductive organs. Finally, we caged...

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