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Species-specific sensitivity of three microalgae to sediment elutriates.
Marine Environmental Research ( IF 3.0 ) Pub Date : 2020-02-07 , DOI: 10.1016/j.marenvres.2020.104901 A Gallo 1 , M Guida 2 , G Armiento 3 , A Siciliano 4 , N Mormile 4 , F Carraturo 4 , D Pellegrini 5 , L Morroni 5 , E Tosti 1 , M I Ferrante 6 , M Montresor 6 , F Molisso 7 , M Sacchi 7 , R Danovaro 8 , G Lofrano 9 , G Libralato 2
Marine Environmental Research ( IF 3.0 ) Pub Date : 2020-02-07 , DOI: 10.1016/j.marenvres.2020.104901 A Gallo 1 , M Guida 2 , G Armiento 3 , A Siciliano 4 , N Mormile 4 , F Carraturo 4 , D Pellegrini 5 , L Morroni 5 , E Tosti 1 , M I Ferrante 6 , M Montresor 6 , F Molisso 7 , M Sacchi 7 , R Danovaro 8 , G Lofrano 9 , G Libralato 2
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Microalgae are considered good bioindicators of marine environmental quality. Frequently, they are used to investigate the toxicity of sediment elutriates, but their sensitivity is disputed. This paper compared the sensitivity of Phaeodactylum tricornutum (diatom), Skeletonema costatum (diatom), and Dunaliella tertiolecta (green alga), analyzing 257 samples of elutriates (1:4 sediment: water ratio), considering growth inhibition (72 h) as the reference endpoint and sediment chemical (metals, metalloids and polyaromatic hydrocarbons) and grain size. Results of the toxicity tests showed that the microalgae sensitivity was not correlated. The integration of chemical data did not allow to discriminate toxicity effects but contributed to highlight that D. tertiolecta was the most sensitive microalgae (no cell wall) followed by P. tricornutum and S. costatum. Further analysis, including lines of evidence and weight of evidence approaches to calculate risk quotients of elutriate samples, confirmed these results.
中文翻译：
三种微藻对沉积物富集的物种特异性敏感性。
微藻被认为是海洋环境质量的良好生物指标。通常，它们被用来研究沉积物水的毒性，但是它们的敏感性是有争议的。本文比较了三角藻（Phaeodyylum tricornutum）（硅藻），肋骨骨架（Skeletonema costatum）（硅藻）和杜氏藻（Dunaliella tertiolecta）（绿藻）的敏感性，分析了257个淘水样品（1：4沉积物：水的比例），并将生长抑制（72 h）作为参考终点和沉积物化学物质（金属，准金属和多芳烃）和晶粒尺寸。毒性测试结果表明，微藻的敏感性不相关。化学数据的整合并不能区分毒性作用，但有助于突出说明D. tertiolecta是最敏感的微藻类（无细胞壁），其次是P. tricornutum和S.。Costatum。进一步的分析（包括证据线和证据权重的方法来计算淘析样品的风险商）证实了这些结果。
更新日期：2020-02-07
中文翻译：
三种微藻对沉积物富集的物种特异性敏感性。
微藻被认为是海洋环境质量的良好生物指标。通常，它们被用来研究沉积物水的毒性，但是它们的敏感性是有争议的。本文比较了三角藻（Phaeodyylum tricornutum）（硅藻），肋骨骨架（Skeletonema costatum）（硅藻）和杜氏藻（Dunaliella tertiolecta）（绿藻）的敏感性，分析了257个淘水样品（1：4沉积物：水的比例），并将生长抑制（72 h）作为参考终点和沉积物化学物质（金属，准金属和多芳烃）和晶粒尺寸。毒性测试结果表明，微藻的敏感性不相关。化学数据的整合并不能区分毒性作用，但有助于突出说明D. tertiolecta是最敏感的微藻类（无细胞壁），其次是P. tricornutum和S.。Costatum。进一步的分析（包括证据线和证据权重的方法来计算淘析样品的风险商）证实了这些结果。
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