Evolutionary Ecology of Kerguelen Islands Colonization by Introduced Salmonids: SALMEVOL 1041-2 project

• Main Authors: Labonne, Jacques, Buoro, Mathieu, Aulus Giacosa, Lucie, Vignon, Matthias, Eldøy, Sindre, Davidsen, Jan, Bordeleau, Xavier, Ferchiou, Sophia, Caza, France, St-Pierre, Yves, Betoulle, Stephane, Aymes, Jean-Christophe, Gueraud, Francois, Hendry, Andrew, Marandel, Lucie, Glise, Stéphane, Herman, Alexandre, Veron, Vincent, Panserat, Stéphane, Gaudin, Philippe
• Other Authors: Ecologie Comportementale et Biologie des Populations de Poissons (ECOBIOP), Université de Pau et des Pays de l'Adour (UPPA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), NTNU University Museum Trondheim, Norwegian University of Science and Technology Trondheim (NTNU), Norwegian University of Science and Technology (NTNU)-Norwegian University of Science and Technology (NTNU), Department of Biology (Dalhousie University), Dalhousie University Halifax, Department of Fisheries and Oceans Canada, Maurice Lamontagne Institute, Institut Armand Frappier (INRS-IAF), Institut National de la Recherche Scientifique Québec (INRS)-Réseau International des Instituts Pasteur (RIIP), Stress Environnementaux et BIOsurveillance des milieux aquatiques (SEBIO), Institut National de l'Environnement Industriel et des Risques (INERIS)-Université de Reims Champagne-Ardenne (URCA)-Université Le Havre Normandie (ULH), Normandie Université (NU)-Normandie Université (NU)-SFR Condorcet, Université de Reims Champagne-Ardenne (URCA)-Université de Picardie Jules Verne (UPJV)-Centre National de la Recherche Scientifique (CNRS)-Université de Reims Champagne-Ardenne (URCA)-Université de Picardie Jules Verne (UPJV)-Centre National de la Recherche Scientifique (CNRS), Redpath Museum and Department of Biology, McGill University = Université McGill Montréal, Canada, Nutrition, Métabolisme, Aquaculture (NuMéA), Institut Polaire Français Paul-Emile Victor, INRAE, UPPA, Institut national de recherche pour l'agriculture, l'alimentation et l'environnement (INRAE), Université de Pau et des Pays de l'Adour (UPPA), Institut Polaire Paul-Emile Victor
• Format: Report
• Language: English
• Published: HAL CCSD 2022
• Subjects: Evolutionary ecology; Salmonids; Biological invasion; Subantarctic Islands; Kerguelen archipelago; Life History Traits; Local adaptation; [SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE]; [SDE.BE]Environmental Sciences/Biodiversity and Ecology; Antarctic; Kerguelen; Kerguelen Islands; Antarc*
• Online Access: https://hal.inrae.fr/hal-03719420; https://hal.inrae.fr/hal-03719420/document; https://hal.inrae.fr/hal-03719420/file/SALMEVOL-1041%20Second%20Report%202015-2020.pdf; https://doi.org/10.17180/G70K-BN42

The present report is a synthesis of all studies conducted around the long-term ecological research(LTER) monitoring of introduced salmonid species in the sub Antarctic Kerguelen islands over the 2015-2020 period, within the SALMEVOL-2 project. The monitoring encompasses the history of eight species,five of which are still present in Kerguelen, the data and collections spanning five decades and tenthsof rivers. Based on this monitoring, but also thanks to various field experiments, we have undertakento study the evolutionary ecology of these species, using the invasive Brown trout as flagship model,under the premise that the Kerguelen situation, where rivers were previously void of any fish species,could be an anticipation lab of the situation developing at the poles due to climate change. Ourfindings pertain to life history traits such as individual growth, migration between freshwater andmarine ecosystems, microbiomes, but also proximal and ultimate mechanisms of adaptation in relationto the local environment. We also begin to investigate how the expanding metapopulation structure,resulting from multiple invasion events, may affect life history traits evolution.