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首页> 外文期刊>Science of the total environment >Trace Element Analysis In The Serum And Hair Of Antarctic Leopard Seal, Hydrurga Leptonyx, And Weddell Seal, Leptonychotes Weddellii
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Trace Element Analysis In The Serum And Hair Of Antarctic Leopard Seal, Hydrurga Leptonyx, And Weddell Seal, Leptonychotes Weddellii

机译：南极豹海豹，Hydrurga Leptonyx和Weddell海豹，Leptonychotes Weddellii的血清和头发中的微量元素分析

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摘要

Leopard seal, Hydrurga leptonyx, and Weddell seal, Leptonychotes lueddellii, occupy an upper trophic level within the Antarctic ecosystem and are useful indicator species in the Southern Ocean of trace element concentrations. Reference values for the concentration of 19 trace elements were determined in the serum and hair of leopard and Weddell seals sampled in Eastern Antarctica. These reference values can be used as 'baseline' levels for monitoring trace element concentrations in these species. Greater trace element concentrations were determined in hair compared to serum, indicating different time scales of trace element accumulation in these samples. For the majority of trace elements, except for Se in the leopard seal samples and Cr in the Weddell seal samples, significant regression relationships for trace element concentrations in hair and serum were not elucidated. Significant differences were determined in the concentrations of seven out of 15 elements with hair type, moult and new, in the leopard seal; concentrations in moult hair were determined to be greater than in new hair for all elements except Zn. Hair analysis was determined to be useful for monitoring exposure to trace elements and when collected off the ice from moulting seals, hair can be employed as a non-invasive sample for trace element analysis in leopard and Weddell seals.
机译：豹海豹Hydrurga leptonyx和Weddell海豹Leptonychotes lueddellii在南极生态系统中占据较高的营养水平，并且是南大洋中痕量元素浓度的有用指示物种。在南极东部采样的豹子和威德尔海豹的血清和头发中确定了19种微量元素的浓度参考值。这些参考值可用作监测这些物种中痕量元素浓度的“基准”水平。与血清相比，头发中的痕量元素浓度更高，表明这些样品中痕量元素积累的时间尺度不同。对于大多数痕量元素，除了豹密封样品中的Se和Weddell密封样品中的Cr之外，没有阐明头发和血清中痕量元素浓度的显着回归关系。在豹海豹中，从毛发类型和新发型的15种元素中，有7种元素的浓度有显着差异。对于除锌以外的所有元素，测定的结果是换毛后的浓度高于新发时的浓度。头发分析被确定对监测痕量元素的暴露是有用的，当从换羽海豹的冰中收集到头发时，头发可以用作豹子和韦德尔海豹中痕量元素分析的非侵入性样品。

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