Multi-omics effect of contaminants exposure during embryogenesis on metamorphosis of blue mussel Mytilus edulis submitted to maritime traffic noise
Abstract
Anthropogenic underwater noise is now considered one of the ‘emerging threats and ongoing challenges to biodiversity conservation’. Physiological changes have been observed in sessile invertebrates such as bivalves. Bivalve mollusks are of particular interest because of their sensitivity to sound, their inability to move away from the sound source, and their considerable economic and social importance. A growing number of studies have examined the acoustic effects of shipping on invertebrates, but few have considered the interaction of multiple stressors to approximate a real ecological context. Noise can interact with chemical contaminants to disrupt the behavior of organisms and have complex effects. Recent studies on invertebrates have shown that noise amplifies the harmful effects of heavy metals such as cadmium. In a harbor environment in the Gulf of St. Lawrence, the stress response of post-larval mussels, Mytilus edulis, was studied using an ecophysiological-ecotoxicological approach. To achieve this, competent pediveliger larvae, previously exposed to a cocktail of pollutants simulating the maritime environment of a port until the end of embryogenesis, were exposed to acoustic perturbations during metamorphosis. The aim was to assess the response of competent larvae (i.e. during metamorphosis) following early life chemical contamination and interaction with noise exposure representative of maritime traffic. This study shows that the effects of early chemical pollution during embryogenesis have a greater impact on larvae than noise exposure later during metamorphosis. In fact, latent effects of early chemical exposure persist, with consequences for size at metamorphosis, energy and oxidative metabolism, and lipid profile of post-larvae.
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BibTeX
@article{veillard2026multiomics,
title = {{Multi-omics effect of contaminants exposure during embryogenesis on metamorphosis of blue mussel Mytilus edulis submitted to maritime traffic noise}},
author = {Delphine Veillard and Stéphane Beauclercq and Bertrand Genard and Richard Saint-Louis and Laurent Chauvaud and Isabelle Marcotte and Frédéric Olivier and Réjean Tremblay},
journal = {Journal of Experimental Marine Biology and Ecology},
year = {2026},
month = oct,
doi = {10.1016/j.jembe.2026.152216},
url = {https://hal.science/hal-05785567v1},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Multi-omics effect of contaminants exposure during embryogenesis on metamorphosis of blue mussel Mytilus edulis submitted to maritime traffic noise
AU - Delphine Veillard
AU - Stéphane Beauclercq
AU - Bertrand Genard
AU - Richard Saint-Louis
AU - Laurent Chauvaud
AU - Isabelle Marcotte
AU - Frédéric Olivier
AU - Réjean Tremblay
PY - 2026
DA - 2026/10/09
JO - Journal of Experimental Marine Biology and Ecology
DO - 10.1016/j.jembe.2026.152216
UR - https://hal.science/hal-05785567v1
AB - Anthropogenic underwater noise is now considered one of the ‘emerging threats and ongoing challenges to biodiversity conservation’. Physiological changes have been observed in sessile invertebrates such as bivalves. Bivalve mollusks are of particular interest because of their sensitivity to sound, their inability to move away from the sound source, and their considerable economic and social importance. A growing number of studies have examined the acoustic effects of shipping on invertebrates, but few have considered the interaction of multiple stressors to approximate a real ecological context. Noise can interact with chemical contaminants to disrupt the behavior of organisms and have complex effects. Recent studies on invertebrates have shown that noise amplifies the harmful effects of heavy metals such as cadmium. In a harbor environment in the Gulf of St. Lawrence, the stress response of post-larval mussels, Mytilus edulis, was studied using an ecophysiological-ecotoxicological approach. To achieve this, competent pediveliger larvae, previously exposed to a cocktail of pollutants simulating the maritime environment of a port until the end of embryogenesis, were exposed to acoustic perturbations during metamorphosis. The aim was to assess the response of competent larvae (i.e. during metamorphosis) following early life chemical contamination and interaction with noise exposure representative of maritime traffic. This study shows that the effects of early chemical pollution during embryogenesis have a greater impact on larvae than noise exposure later during metamorphosis. In fact, latent effects of early chemical exposure persist, with consequences for size at metamorphosis, energy and oxidative metabolism, and lipid profile of post-larvae.
SN - 0022-0981
ER -