作为甲基汞生物指标的沿海贻贝（贻贝属）软组织：探索状态指数与甲基汞浓度之间的关系

IF 2.7 4区环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES Bulletin of Environmental Contamination and Toxicology Pub Date : 2024-04-11 DOI:10.1007/s00128-024-03888-9

Josie Rogers, Molly A. Bradford, Nelson J. O’Driscoll

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摘要

我们调查了芬迪湾米纳斯盆地采样的沿海贻贝（Mytilus spp.）体内的总汞（THg）和甲基汞（MeHg）浓度，并评估了它们与状态指数（CI）的关系。沉积物（平均 THg = 5.15 ± 2.11 纳克/克干重；n = 6）和软组织（平均 THg = 62.3 ± 13.7 纳克/克；平均 MeHg = 13.2 ± 6.3 纳克/克；n = 57）中的 THg 浓度较低。组织中的 THg 与 CI 无明显关系（Rs=-0.205，P=0.126）。组织中的甲基汞与状态指数呈显著负相关（Rs=-0.361，p=0.006），表明较健康的贻贝（CI 较高）汞含量较低，这可能是由于消除策略或生长稀释所致。

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Coastal Mussel (Mytilus spp.) Soft Tissues as Bioindicators of Methylmercury: Exploring the Relationship Between Condition Index and Methylmercury Concentrations

We investigated total mercury (THg) and methylmercury (MeHg) concentrations in coastal mussels (Mytilus spp.) sampled from the Minas Basin, Bay of Fundy and evaluated the relationship with condition index (CI). THg concentrations were low in sediment (mean THg = 5.15 ± 2.11 ng/g dw; n = 6) and soft tissues (mean THg = 62.3 ± 13.7 ng/g; mean MeHg = 13.2 ± 6.3 ng/g; n = 57). The THg in tissues had no significant relationship with CI (R_s= -0.205, p = 0.126). MeHg in tissues were significantly and negatively correlated with condition index (R_s = -0.361, p = 0.006) indicating that healthier mussels (higher CI) have lower mercury content possibly due to elimination strategies or growth dilution.

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来源期刊

Bulletin of Environmental Contamination and Toxicology 环境科学-毒理学

CiteScore

5.60

自引率

3.70%

发文量

230

审稿时长

1.7 months

期刊介绍： The Bulletin of Environmental Contamination and Toxicology(BECT) is a peer-reviewed journal that offers rapid review and publication. Accepted submissions will be presented as clear, concise reports of current research for a readership concerned with environmental contamination and toxicology. Scientific quality and clarity are paramount.