Evolutionary Ecology of Kerguelen Islands Colonization by Introduced Salmonids: SALMEVOL 1041-2 project - Archive ouverte HAL Access content directly
Reports Year : 2022

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

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Sophia Ferchiou
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  • PersonId : 1148568
Yves St-Pierre
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  • PersonId : 928767
Andrew P Hendry
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  • PersonId : 1087835
Lucie Marandel
Vincent Veron

Abstract

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 tenths of rivers. Based on this monitoring, but also thanks to various field experiments, we have undertaken to 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. Our findings pertain to life history traits such as individual growth, migration between freshwater and marine ecosystems, microbiomes, but also proximal and ultimate mechanisms of adaptation in relation to the local environment. We also begin to investigate how the expanding metapopulation structure, resulting from multiple invasion events, may affect life history traits evolution.
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Dates and versions

hal-03719420 , version 1 (11-07-2022)

Licence

Attribution - NonCommercial - NoDerivatives - CC BY 4.0

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Jacques Labonne, Mathieu Buoro, Lucie Aulus Giacosa, Matthias Vignon, Sindre Håvarstein Eldøy, et al.. Evolutionary Ecology of Kerguelen Islands Colonization by Introduced Salmonids: SALMEVOL 1041-2 project. [Research Report] 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. 2022. ⟨hal-03719420⟩
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