Halbrook R S, Lewis L A, Aulerich R I, Bursian S J
Cooperative Wildlife Research Laboratory, Southern Illinois University, Carbondale, Illinois 62901-6504, USA.
Arch Environ Contam Toxicol. 1997 Oct;33(3):312-6. doi: 10.1007/s002449900258.
This study evaluates effects of feeding mercury (Hg) contaminated fish collected from streams on the Oak Ridge Reservation (ORR) on mink. Diets composed of 25, 50, or 75% fish collected from streams on the ORR were fed to mink beginning 3 months prior to breeding and ending 6 weeks following whelping. Mercury concentrations in diets, tissues of adult mink and their offspring, and physiological and reproductive effects were recorded and compared to concentrations and effects observed in mink fed diets composed of 75% fish collected from the Clinch River above the ORR or from the ocean. Mercury concentrations in prepared diets and in tissues of adult mink and their offspring increased progressively with increased percentage of ORR fish in the diets. Female mink fed diets containing 75% ORR fish had reduced body weight and a decreased number of kits compared to those fed diets containing 75% fish collected above the ORR or from the ocean. However, based on previously reported Hg concentrations associated with adverse effects in mink, the observed adverse effects are not thought to result from exposure to Hg.
本研究评估了投喂从橡树岭保留地（ORR）溪流采集的受汞（Hg）污染的鱼类对水貂的影响。从繁殖前3个月开始至产仔后6周结束，将由25%、50%或75%从ORR溪流采集的鱼类组成的日粮投喂给水貂。记录日粮、成年水貂及其后代组织中的汞浓度以及生理和生殖效应，并与投喂由75%从ORR上游克林奇河或海洋采集的鱼类组成日粮的水貂所观察到的浓度和效应进行比较。制备日粮以及成年水貂及其后代组织中的汞浓度随着日粮中ORR鱼类百分比的增加而逐渐升高。与投喂含75%从ORR上游或海洋采集鱼类日粮的水貂相比，投喂含75% ORR鱼类日粮的雌性水貂体重减轻，幼崽数量减少。然而，根据先前报道的与水貂不良反应相关的汞浓度，认为所观察到的不良反应并非由汞暴露导致。
