Mortality of marine mussels Mytilus edulis and M. galloprovincialis : systematic literature review of risk factors and recommendations for future research - Université de Montpellier Accéder directement au contenu
Article Dans Une Revue Reviews in Aquaculture Année : 2021

Mortality of marine mussels Mytilus edulis and M. galloprovincialis : systematic literature review of risk factors and recommendations for future research

Gwenhael Allain
  • Fonction : Auteur
Ismael Bernard
  • Fonction : Auteur
Philippe Blachier
  • Fonction : Auteur
Audrey Laine
  • Fonction : Auteur
Jean Christophe Raymond
  • Fonction : Auteur
Michael Treilles

Résumé

The aim of this study was to summarise the literature reporting the risk factors for mortality in the mussel speciesMytilus edulisandMytilus galloprovincialisin order to identify potential science-based solutions to prevent or mitigate mussel mortality outbreaks. We followed the PRISMA methodology: Preferred Reporting Items for Systematic Reviews and Meta-Analyses. The studied corpus of 91 publications (114 studies) was highly heterogeneous with respect to the methodological approaches used to define or estimate mussel mortality and the related putative risk factors. Results showed that the mortality risk of both mussel speciesM. edulisandM. galloprovincialisvaried across the seasons, increased with an elevated seawater temperature above a thermal threshold of 20 and 24 degrees C, respectively, decreased by protecting mussels from predation, and was associated with the presence of pathogens inM. edulis. ForM. galloprovincialis, using mussel spat from the same area where the farming is carried out and farming them together with another mussel species appears to reduce the mortality risk. However, forM. edulis, this could be achieved by using pure crosses and in particular mussel spat having a selected genotype. For wild bed conservation, sand accumulation and anthropogenic sedimentation should be minimised. Our analysis showed that current approaches to this research topic are limited and are unlikely to yield actionable evidence to identify mussel mortality prevention or mitigation strategies. Therefore, recommendations are offered to increase the ability of future eco-epidemiological research to identify multiple exposures associated with mussel mortality, underpinned by standardised efforts and cooperative initiatives.
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Dates et versions

hal-03411037 , version 1 (01-06-2022)

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Coralie Lupo, Stephanie Bougeard, Véronique Le Bihan, Jean Louis Blin, Gwenhael Allain, et al.. Mortality of marine mussels Mytilus edulis and M. galloprovincialis : systematic literature review of risk factors and recommendations for future research. Reviews in Aquaculture, 2021, 13 (1), pp.504-536. ⟨10.1111/raq.12484⟩. ⟨hal-03411037⟩
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