a field study on serum vitellogenin levels in male reeves' pond turtles (chinemys reevesii) from estrogen-contaminated sites and a reference site. | to ascertain whether wild male turtles were influenced by environmental estrogens, we examined serum vitellogenin (vtg) levels of male reeves' pond turtles (chinemys reevesii) collected from four study sites (a-d) in kyoto, japan. sites a-c, which were impacted by domestic or industrial wastewater and effluents from sewage treatment plants, were chosen as contaminated sites, and site d was intended as a reference site. this contaminated/reference site characterization was confirmed by measuring ... | 2007 | 17597185 |