Stress on stress response of wild mussels, Mytilus edulis and Mytilus trossulus, as an indicator of ecosystem health
Stress on stress response of wild mussels, Mytilus edulis and Mytilus trossulus, as an indicator of ecosystem health
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DOI：
10.1016/s0269-7491(03)00231-8
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发表时间：
2003-01-01
影响因子：
8.9
通讯作者：
Law, RJ
中科院分区：
文献类型：
--
作者：
Hellou, J;Law, RJ
在哈利法克斯港三个不同污染程度的地点检查了贻贝的健康状况，其中50%的取样动物在15度的空气中存活时间（LT50）。比较了60组2种贻贝的生理状态和性腺指数、脂质含量以及多环芳香族化合物（PACs）的体负荷。每次取样时，贻贝（Mytilus edulis）和贻贝（Mytilus trossulus）体内PACs的生物积累量、脂质含量和条件指标均高于其他地点，存活时间较短。毛蕊支霉的耐受性一般比柔骨支霉更强（n = 11， LT50分别为9.3和7.9天），柔骨支霉性腺发育时间更短、更晚。最小耐受性和最大耐受性分别出现在6月和10月（LT50为3 ~ 14 d）。结果表明，胁迫对应激反应的响应是一种简单、灵敏的环境健康指标，可与贻贝的观察研究相结合。(C) 2003 Elsevier Ltd.版权所有。
Mussels' health as indicated by the survival time of 50% of sampled animals (LT50) when maintained in air at 15 degreesC was examined at three sites in Halifax Harbour with expected differing levels of contamination. Condition and gonad indices, lipid content and the body burden of polycyclic aromatic compounds (PACs) were compared with this stress response in 60 groups of mussels covering two species. At each sampling time, the bioaccurtiulation of PACs, lipid content and condition indices were higher whithin Mytilus edulis and Mytilus trossulus displaying shorter survival than at the other sites. M. edulis was generally more tolerant than M. trossulus (for n = 11, LT50 of 9.3 and 7.9 days), with indications of shorter and later gonad development in M. trossulus. Minimum and maximum tolerance was apparent in June and October (LT50 spanning 3-14 days), respectively. Our results indicate that the stress on stress response provides a simple and sensitive indicator of environmental health, which could be integrated with mussel watch studies. (C) 2003 Elsevier Ltd. All rights reserved.