Advertisement

Does Global Warming Favor the Occurrence of Recent Blue Mussel Mortality Events in France?

  • Jean-François PépinEmail author
  • Patrick Soletchnik
  • Olivier Le Moine
  • Pierre Polsenaere
  • Sylvie Génauzeau
  • Stéphane Robert
  • James Grizon
  • Jean Luc Seugnet
  • Anne Schmitt
  • Jean Michel Chabirand
  • Delphine Tourbiez
  • Marie-Agnès Travers
  • Stéphane Guesdon
Conference paper
  • 44 Downloads

Abstract

We report in this work data of two independent studies carried out in the Pertuis Charentais for which a link might exist. A 30-year-local time series study of hydro-climatic variations in water temperature and salinity, which show significant warming of the water masses in the Marennes-Oleron bay (+1.5 °C) associated with a significant drop (≥15%) of freshwater intakes by nearby rivers. In this changing local climate context several major epizootics have appeared, severely affecting farmers and the production of Pacific oysters and mussels, from the first French shellfish-producing department (catching and growing, Agreste 2014). Following the massive mortality event of blue mussels in 2014, a specific study (MORBLEU) is conducted, trying to identify the factors favoring the development of the phenomenon which, furthermore, involves pathogenic bacteria. First analyzes of environmental conditions suggest that there may be a link between (i) the local climate context, (ii) a downward trend in phytoplankton diversity indices, (iii) imbalances in the dynamics of bacterial community composition. These last two points are concomitant with the recent emergence of spring mortalities of mussels. The hypothesis of this link asks the question of evolution in the interactions between the plankton communities of the water column, mussel microbiota and the emergence of pathogenic microbial flora in bivalve mollusks as underlying the recent shellfish mortality events. Such a question requires performing a functional ecology approach with long-term monitoring at different scales, involving particularly NGS technology (metabarcoding) for environmental DNA research. Such a study is underway.

Keywords

Hydro-climate Estuary Phytoplankton Mussels Mortality Environment Microbial community 

References

  1. Agreste (2014) Recensement de la conchyliculture 2012. Numéro 316, Juillet 2014. http://agreste.agriculture.gouv.fr/IMG/pdf/primeur316.pdf
  2. Béchemin C, Soletchnik P, Polsenaere P, Le Moine O, Pernet F, Protat M, Fuhrmann M, Quere C, Goulitquer S, Corporeau C, Lapegue S, Travers MA, Morga B, Garrigues M, Garcia C, Haffner P, Dubreuil C, Faury N, Baillon L, Baud JP, Renault T (2015) Episodes de mortalité massive de moules bleues observés en 2014 dans les Pertuis charentais. Bulletin Epidémiologie, Santé animale et alimentaion 67: 6–9. Open Access version http://archimer.ifremer.fr/doc/00312/42343/
  3. Benabdelmouna A, Ledu C (2016) The mass mortality of blue mussels (Mytilus spp.) from the Atlantic coast of France is associated with heavy genomic abnormalities as evidenced by flow cytometry. J Invertebr Pathol 138:30–38.  https://doi.org/10.1016/j.jip.2016.06.001CrossRefPubMedGoogle Scholar
  4. Bethoux N, Etienne M, Ibanez F, Rapaire JL (1980) Hydrologic specificities of littoral areas. Time analysis by the method 'Cencus 2' and evaluation of ocean-atmosphere exchanges off Villefranche-sur-Mer. Ann Inst Oceanogr Paris Ed. MassonGoogle Scholar
  5. Buchan A, LeCleir GR, Gulvik CA, Gonzalez JM (2014) Master recyclers: features and functions of bacteria associated with phytoplankton blooms. Nat Rev Micro 12:686–698CrossRefGoogle Scholar
  6. Chaalali A, Beaugrand G, Boët P et al (2013) Climate-caused abrupt shifts in a European macrotidal estuary. Estuaries Coasts 36:1193–1205Google Scholar
  7. Degerman R, Dinasquet J, Riemann L, Sjostedt de Luna S, Andersson A (2013) Effect of resource availability on bacterial community responses to increased temperature. Aquat Microb Ecol 68:131–142CrossRefGoogle Scholar
  8. Guesdon S, Travers M-A, Hervio Heath D, Derrien A, Genauzeau S, Schmitt A, Quintric L, Leroi L, Pepin J-F (2017) Microbial balance, and triggering of recent mussel mortality events in France: Is there a link? In: AMMR 2017—2nd international symposium on the advances in marine mussel research. Sète, France, 7–8 Sept 2017. http://archimer.ifremer.fr/doc/00415/52696/
  9. Michel S, Vandermeirsch F, Lorance P (2009) Evolution of upper layer temperature in the Bay of Biscay during the last 40 years. Aquat Living Resour 22(4):447–461CrossRefGoogle Scholar
  10. Pépin JF, Benabdelmouna A, Degremont L, Guesdon S, Le Moine O, Morga B, Bierne N, Travers M, Robert S, Soletchnik P (2017) Mortalités de moules bleues dans les secteurs mytilicoles charentais et vendéens: description et facteurs liés—MORBLEU. Report. http://R.INT.RBE/SG2M-LGPMM/, http://archimer.ifremer.fr/doc/00391/50288/
  11. Pépin JF, Soletchnik P, Robert S (2014) Mortalités massives de l’Huître creuse. Synthèse—Rapport final des études menées sur les mortalités de naissains d’huîtres creuses C. gigas sur le littoral charentais pour la période de 2007 à 2012. ODE/LER-PC/ 14-05. https://archimer.ifremer.fr/doc/00217/32856/
  12. Polsenaere P, Soletchnik P, Le Moine O, Gohin F, Robert S, Pepin JF, Stanisiere JY, Dumas F, Bechemin C, Goulletquer P (2017) Potential environmental drivers of a regional blue mussel mass mortality event (winter 2014, Breton Sound, France). J Sea Res 123: 39–50. Publisher’s official version http://doi.org/10.1016/j.seares.2017.03.005, Open Access version http://archimer.ifremer.fr/doc/00376/48708/
  13. Soletchnik P, Le Moine O, Polsenaere P (2017) Evolution de l’environnement hydroclimatique du bassin de Marennes-Oléron dans le contexte du changement global. RST/ODE/LER/LERPC, June 2017, http://archimer.ifremer.fr/doc/00387/49815/
  14. Soletchnik P, Faury N, Razet D, Goulletquer P (1998) Hydrobiology of the Marennes-Oleron bay. Seasonal indices and analysis of trends from 1978 to 1995. Hydrobiologia 386(1–3): 131–146. http://doi.org/10.1023/A:1003511815728
  15. Travers M, Pépin JF, Soletchnik P, Guesdon S, Le Moine O (2016) Mortalités de moules bleues dans les Pertuis Charentais: description et facteurs liés—MORBLEU. Report. http://R.INT.RBE/SG2M-LGPMM/, http://archimer.ifremer.fr/doc/00324/43539/
  16. Vezzulli L, Brettar I, Pezzati E, Reid PC, Colwell RR, Hofle MG, Pruzzo C (2012) Long-term effects of ocean warming on the prokaryotic community: evidence from the vibrios. ISME J 6:21–30CrossRefGoogle Scholar
  17. Von Scheibner M, Dorge P, Biermann A, Sommer U, Hoppe H-G, Jurgens K (2014) Impact of warming on phyto-bacterioplankton coupling and bacterial community composition in experimental mesocosms. Environ Microbiol 16:718–733CrossRefGoogle Scholar

Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • Jean-François Pépin
    • 1
    Email author
  • Patrick Soletchnik
    • 1
  • Olivier Le Moine
    • 1
  • Pierre Polsenaere
    • 2
  • Sylvie Génauzeau
    • 2
  • Stéphane Robert
    • 1
  • James Grizon
    • 2
  • Jean Luc Seugnet
    • 1
  • Anne Schmitt
    • 2
  • Jean Michel Chabirand
    • 2
  • Delphine Tourbiez
    • 3
  • Marie-Agnès Travers
    • 3
  • Stéphane Guesdon
    • 1
  1. 1.Ifremer, LERPCLa TrembladeFrance
  2. 2.Ifremer, LERPCL’HoumeauFrance
  3. 3.Ifremer, LGPMMLa TrembladeFrance

Personalised recommendations