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首页> 外文期刊>Environmental toxicology and chemistry >Temporal And Geographic Trends In Mercury Concentrations In Muscle Tissue In Five Species Of Hudson River, Usa, Fish
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Temporal And Geographic Trends In Mercury Concentrations In Muscle Tissue In Five Species Of Hudson River, Usa, Fish

机译：五种哈德逊河，美国，鱼类的肌肉组织中汞含量的时空和地理趋势

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摘要

We analyzed a New York (USA) state database of mercury concentrations in muscle tissue for five species of fish (striped bass, yellow perch, largemouth bass, smallmouth bass, and carp) over a range of locations in the Hudson River (USA) between 1970 and 2004. We used regression models to discern temporal and geographic change in the fish while controlling for a positive correlation between mercury concentration and body mass. Mercury concentrations significantly increased in fish from New York Harbor waters to the mid-Hudson River. Striped bass and yellow perch showed a shallower increase in mercury concentration with river mile than did carp, largemouth bass, and smallmouth bass. Mercury concentrations declined over the 34-year period. These results imply that a geographically restricted source of mercury may be spread throughout the watershed by toxin-laden dispersing species. The increase of mercury toward the north may relate to a point source in the mid-Hudson River, or it may indicate mercury released from the Adirondack watershed. The decline of mercury over three decades corresponds to a reduction of various inputs in the region. The temporal and geographic pattern of mercury in sediments corresponds to the geographic trend of mercury in fish.
机译：我们分析了纽约州（美国）在哈德逊河（美国）之间一系列位置之间的五种鱼类（条纹鲈鱼，黄鲈鱼，大嘴鲈鱼，小嘴鲈鱼和鲤鱼）的肌肉组织中汞浓度的汞含量数据库1970年和2004年。我们使用回归模型来识别鱼的时间和地理变化，同时控制汞浓度与体重之间的正相关。从纽约港水域到哈得逊河中部的鱼类中的汞浓度显着增加。条纹鲈鱼和黄色鲈鱼在河里的汞含量增加幅度比鲤鱼，大嘴鲈鱼和小嘴鲈鱼低。在过去的34年中，汞含量下降了。这些结果表明，受毒素限制的汞可能在地理上受限制的汞源遍布整个流域。汞向北的增加可能与哈得逊河中部的一个点源有关，或者可能表明从阿迪朗达克流域释放的汞。三十年来汞的减少对应于该区域各种投入的减少。沉积物中汞的时间和地理格局与鱼类中汞的地理趋势相对应。

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