THE PHYSIOLOGICAL IMPAIRMENT OF FREE-RANGING BROWN TROUT EXPOSED TO METALS IN THE CLARK-FORK RIVER, MONTANA
THE PHYSIOLOGICAL IMPAIRMENT OF FREE-RANGING BROWN TROUT EXPOSED TO METALS IN THE CLARK-FORK RIVER, MONTANA
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DOI：
10.1139/f95-795
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发表时间：
1995-09-01
影响因子：
2.4
通讯作者：
BERGMAN, HL
中科院分区：
文献类型：
--
作者：
FARAG, AM;STANSBURY, MA;BERGMAN, HL
组织金属的积累和生理反应进行了测量，褐鳟鱼（萨尔莫trutta）从两个网站上的克拉克福克河，蒙大拿州，和两个参考网站，以确定居民鱼类种群的健康状况。组织中的金属浓度，脂质过氧化产物，微观铜夹杂物显着高于从克拉克福克河上游网站收集的鱼比从参考网站的鱼。克拉克福克河上游鱼类肝脏中的金属硫蛋白浓度高于参考地点鱼类肝脏中的金属硫蛋白浓度。在克拉克福克河上游的鱼类种群的健康可能是受损的，因为以前报道的金属，包括As，Cd，Cu，Pb和Zn的浓度升高，在克拉克福克河上游的地表水和水生无脊椎动物。克拉克福克河表层沃茨和沉积物中的高浓度金属是美国西部山间河流的典型特征，自19世纪末以来，采矿活动一直在排放这些河流。因此，我们的研究结果可以作为整个美国西部山区研究人员的指导，他们可能会调查类似的野外条件。
Tissue metal accumulation and physiological responses were measured in brown trout (Salmo trutta) collected from two sites on the Clark Fork River, Montana, and two reference sites to determine the health status of the resident fish population. Concentrations of metals in tissues, products of lipid peroxidation, and microscopic Cu inclusions were significantly higher in fish collected from the upper Clark Fork River site than in fish from reference sites. Metallothionein concentrations were higher in the livers of fish from the upper Clark Fork River than in those of fish from reference sites. The health of the fish population in the upper Clark Fork River is probably impaired because of previously reported elevated concentrations of metals including As, Cd, Cu, Pb, and Zn in the surface water and aquatic invertebrates in the upper Clark Fork River. The high concentrations of metals in the surface waters and sediments of the Clark Fork River are typical of rivers in the intermountain western United States where discharges from mining activities have occurred since the late 1800s. Thus, our findings can be used as a guide for researchers throughout the intermountain western United States who may investigate similar field conditions.