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Effect of diet quality on mussel biomarker responses to pollutants

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untranslatedGonzález-Fernández et al., 2016.pdf (956.1Kb)
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URI: http://hdl.handle.net/10508/10450
DOI: j.aquatox.2016.05.07
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Authors
González-Fernández, C. (Carmen); Lacroix, C.; Paul-Pont, I.; Le Grand, F.; Albentosa, M. (Marina); Bellas, J. (Juan); Viñas, L. (Lucía); Campillo-González, J.A. (Juan Antonio); Hegaret, H
Date
2016-05-31
Type
research article
Keywords
Food quallity
Mussels
Biomarkers
Monitoring Programs
Fluoranthene
Abstract
The effect of the quality of two microalgal species on select biological and biochemical responses usedas indicators of pollution were assessed. Mussels were conditioned for 6 weeks with the diatom Chaeto-ceros neogracile and the dinoflagellate Heterocapsa triquetra, chosen for being two clearly different typesof primary production quality that differ in both biometric and biochemical characteristics. After dietaryconditioning, the mussels were exposed to a polycyclic aromatic hydrocarbon, fluoranthene (FLU), for1 week followed by 1 week of depuration. Results showed higher FLU accumulation in mussels fed onC. neogracile compared to those fed on H. triquetra. Concomitantly, a greater impact of this toxicant wasobserved in the biomarker responses of mussels fed on C. neogracile. These mussels showed an increase inthe percentage of dead hemocytes, an activation of phagocytosis and ROS production of hemocytes afterexposure. Some enzymatic activities also increased upon FLU exposure (superoxide ...

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