Claus Wedekind

This study compares two cryopreservation extenders for brown trout sperm, finding the methanol-glucose extender more effective than dimethyl-sulfoxide, with no significant fertilization differences at high sperm-egg ratios.

This study exposes brown trout embryos to 2 pg of EE2 and finds increased mortality, delayed hatching, and reduced size.

This study shows that estrogen pollution affects gene expression and delays sex differentiation in grayling, with stronger effects in females and some feminization of males.