Trace metal elements and organic contaminants are differently related to the growth and body condition of wild European sea bass juveniles

Type Article
Date 2022-07
Language English
Author(s) Lebigre ChristopheORCID1, Aminot YannORCID2, Munschy CatherineORCID2, Drogou Mickael1, Le Goff RonanORCID1, Briant NicolasORCID2, Chouvelon Tiphaine2, 3
Affiliation(s) 1 : UMR DECOD (Ecosystem Dynamics and Sustainability), IFREMER, INRAE, Institut Agro, ZI Pointe du Diable, Plouzané F-29280, France
2 : IFREMER, CCEM Contamination Chimique des Écosystèmes Marins, Nantes F-44000, France
3 : Observatoire Pelagis, UAR 3462, La Rochelle Université - CNRS, La Rochelle F-17000, France
Source Aquatic Toxicology (0166-445X) (Elsevier BV), 2022-07 , Vol. 248 , P. 106207 (10p.)
DOI 10.1016/j.aquatox.2022.106207
WOS© Times Cited 3
Keyword(s) Chemical contaminants, Dicentrarchus labrax, Early-life stages, Inorganic elements, Anthropogenic impacts, Marine pollution

Chemical contaminants are one of the causes of the ongoing degradation of coastal and estuarine nurseries, key functional habitats in which the juveniles of many marine species grow. As chemical contaminants can cause a decrease in the energy available and induce defence mechanisms reducing the amount of energy allocated to life history traits, quantifying their effect on the fitness of juvenile fish is key to understand their population-level consequences. However, these effects are primarily estimated experimentally or in the wild but on a limited number of contaminants or congeners that do not reflect the wide variety of chemical contaminants to which juvenile fish are exposed. To address this issue, we measured concentrations of 14 trace metal elements (TMEs) and bioaccumulative organic contaminants (OCs) in European sea bass juveniles (1-year-old) from three major French nurseries (Seine, Loire and Gironde estuaries). We tested the hypotheses that (i) levels and profiles of contaminants differed among studied nurseries, and ii) fish growth and body condition (based on morphometric measurements and muscle C:N ratio) were lower in individuals with higher contaminant concentrations. Multivariate analyses showed that each nursery had distinct contaminant profiles for both TMEs and OCs, confirming the specific contamination of each estuary, and the large array of contaminants accumulated by sea bass juveniles. Increasing concentrations in some TMEs were associated to decreased growth, and TMEs were consistently related to lower fish body condition. The effect of OCs was more difficult to pinpoint possibly due to operational constraints (i.e., analyses on pooled fish) with contrasting results (i.e., higher growth and decreased body condition). Overall, this study shows that chemical contaminants are related to lower fish growth and body condition at an early life stage in the wild, an effect that can have major consequences if sustained in subsequent ages and associated with a decline in survival and/or reproductive success.

Full Text
File Pages Size Access
10 742 KB Access on demand
207 KB Access on demand
Author's final draft 34 644 KB Open access
Top of the page

How to cite 

Lebigre Christophe, Aminot Yann, Munschy Catherine, Drogou Mickael, Le Goff Ronan, Briant Nicolas, Chouvelon Tiphaine (2022). Trace metal elements and organic contaminants are differently related to the growth and body condition of wild European sea bass juveniles. Aquatic Toxicology, 248, 106207 (10p.). Publisher's official version : , Open Access version :