Metal concentrations, growth and condition indices in European juvenile flounder (Platichthys flesus) relative to sediment contamination levels in four Eastern English Channel estuaries.

Journal of Environmental Monitoring Pub Date : 2012-12-01 Epub Date: 2012-11-12 DOI:10.1039/c2em30765k

F Henry, I Filipuci, G Billon, L Courcot, E Kerambrun, R Amara

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引用次数: 10

Abstract

The aim of the present study was to evaluate the effects of metal contamination on the biological responses of 0-group juvenile European flounder and to assess and compare the quality of four estuarine habitats located in the Eastern English Channel. Fish otolith growth and condition indices (RNA : DNA ratio, Fulton's K condition index) were measured and found to be significantly lower in individuals from the Seine estuary compared to those of the Canche, Authie and Somme estuaries. No obvious effects of hydrological condition or food availability on the flounder biological responses were observed. Sediments from the Seine showed the highest metal concentrations, bioavailable proportion and enrichment factors. Higher metal concentrations were observed in fish from the Seine compared to the other ones caught in less polluted estuaries. These results suggest that contaminants may have a negative impact on the early life history stage of flounder.

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东英吉利海峡4个河口沉积物污染对欧洲鲽幼鱼金属浓度、生长及状态指标的影响

本研究旨在评价金属污染对0组欧洲比目鱼幼鱼生物反应的影响，并对英吉利海峡东部4个河口生境的质量进行评价和比较。通过测量鱼耳石生长和状态指数(RNA: DNA比值，Fulton’s K状态指数)，发现塞纳河河口个体的耳石生长和状态指数明显低于Canche, Authie和Somme河口个体。水文条件和食物可得性对比目鱼的生物学反应无明显影响。塞纳河沉积物中金属含量、生物可利用比例和富集因子最高。与其他污染较轻的河口捕获的鱼相比，在塞纳河捕获的鱼中观察到更高的金属浓度。这些结果表明，污染物可能对比目鱼的早期生活史阶段产生负面影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Environmental Monitoring 环境科学-分析化学

自引率

0.00%

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审稿时长

2.3 months