Sea trout (Salmo trutta) growth patterns during early steps of invasion in the Kerguelen Islands
International audience Brown trout (Salmo trutta L.) was voluntarily introduced in some rivers of the Kerguelen Islands in the 1950s–1960s. Fish originating from hatcheries rapidly colonized other streams, thanks to the early occurrence of anadromous (i.e., migratory) form. Getting insight into the...
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Online Access: | https://hal.archives-ouvertes.fr/hal-01705841 https://doi.org/10.1007/s00300-018-2253-1 |
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ftccsdartic:oai:HAL:hal-01705841v1 2023-05-15T13:35:23+02:00 Sea trout (Salmo trutta) growth patterns during early steps of invasion in the Kerguelen Islands Jarry, Marc Beall, Edward Davaine, Patrick Gueraud, Francois Gaudin, Philippe Aymes, Jean-Christophe Labonne, Jacques VIGNON, Matthias Ecologie Comportementale et Biologie des Populations de Poissons (ECOBIOP) Institut National de la Recherche Agronomique (INRA)-Université de Pau et des Pays de l'Adour (UPPA) We gratefully acknowledge the support (funding, logistics, travel) provided by the TAAF administration (Terres Australes et Antarctiques Françaises-Mission de Recherche) over all these years and their staff in Paris, La Réunion and Brest, France. This study is part of SALMEVOL-1041 program funded by the French Polar Institute (IPEV) and Institut National de la Recherche Agronomique (INRA). This study is supported by the Zone Atelier Antarctique 2018 https://hal.archives-ouvertes.fr/hal-01705841 https://doi.org/10.1007/s00300-018-2253-1 en eng HAL CCSD Springer Verlag info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-018-2253-1 hal-01705841 https://hal.archives-ouvertes.fr/hal-01705841 doi:10.1007/s00300-018-2253-1 PRODINRA: 421374 WOS: 000431786900008 ISSN: 0722-4060 EISSN: 1432-2056 Polar Biology https://hal.archives-ouvertes.fr/hal-01705841 Polar Biology, Springer Verlag, 2018, 41 (5), pp.925-934. ⟨10.1007/s00300-018-2253-1⟩ https://link.springer.com/journal/300 growth scale introduced species sea trout sub-antarctic salmonid feeding reproductive cost scale reading growth profile invasion biologique reproduction croissance subantarctique kerguelen écaille espèce introduite salmo trutta [SDE.BE]Environmental Sciences/Biodiversity and Ecology info:eu-repo/semantics/article Journal articles 2018 ftccsdartic https://doi.org/10.1007/s00300-018-2253-1 2021-04-24T23:37:04Z International audience Brown trout (Salmo trutta L.) was voluntarily introduced in some rivers of the Kerguelen Islands in the 1950s–1960s. Fish originating from hatcheries rapidly colonized other streams, thanks to the early occurrence of anadromous (i.e., migratory) form. Getting insight into the success of colonization requires investigating fitness-related traits such as growth and reproductive investment. In particular, increased growth and body size—traits that are broadly related to dispersal ability—are predicted on colonization front, to the possible detriment of reproductive ability. We here report such investigation on early data following the first natural reproductions in the founder populations of Kerguelen, from 1971 to 1994, assessing the main characteristic on growth at sea and reproductive investment for both sexes. Our results reveal that growth of sea trout is excellent with individuals fully benefiting from their relatively short period of growth at sea, sizes and weights ranking among the highest recorded to date. During the reproduction period, males lose on average 15–21% of their weight, whereas females lose 18–19% of their weight. Although a trade-off between growth and reproduction may arise at marginal distribution of invasive species, our study indicates that any potential advantages arising from increased growth and therefore potential dispersal ability may not be directly balanced by reduced reproductive investment, with respect to other published studies. Results overall shed light on intrinsic invasiveness of the brown trout in a post-glacial landscape with barely any interaction with human activities. Article in Journal/Newspaper Antarc* Antarctic Kerguelen Islands Polar Biology Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Antarctic Kerguelen Kerguelen Islands Polar Biology 41 5 925 934 |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
growth scale introduced species sea trout sub-antarctic salmonid feeding reproductive cost scale reading growth profile invasion biologique reproduction croissance subantarctique kerguelen écaille espèce introduite salmo trutta [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
spellingShingle |
growth scale introduced species sea trout sub-antarctic salmonid feeding reproductive cost scale reading growth profile invasion biologique reproduction croissance subantarctique kerguelen écaille espèce introduite salmo trutta [SDE.BE]Environmental Sciences/Biodiversity and Ecology Jarry, Marc Beall, Edward Davaine, Patrick Gueraud, Francois Gaudin, Philippe Aymes, Jean-Christophe Labonne, Jacques VIGNON, Matthias Sea trout (Salmo trutta) growth patterns during early steps of invasion in the Kerguelen Islands |
topic_facet |
growth scale introduced species sea trout sub-antarctic salmonid feeding reproductive cost scale reading growth profile invasion biologique reproduction croissance subantarctique kerguelen écaille espèce introduite salmo trutta [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
description |
International audience Brown trout (Salmo trutta L.) was voluntarily introduced in some rivers of the Kerguelen Islands in the 1950s–1960s. Fish originating from hatcheries rapidly colonized other streams, thanks to the early occurrence of anadromous (i.e., migratory) form. Getting insight into the success of colonization requires investigating fitness-related traits such as growth and reproductive investment. In particular, increased growth and body size—traits that are broadly related to dispersal ability—are predicted on colonization front, to the possible detriment of reproductive ability. We here report such investigation on early data following the first natural reproductions in the founder populations of Kerguelen, from 1971 to 1994, assessing the main characteristic on growth at sea and reproductive investment for both sexes. Our results reveal that growth of sea trout is excellent with individuals fully benefiting from their relatively short period of growth at sea, sizes and weights ranking among the highest recorded to date. During the reproduction period, males lose on average 15–21% of their weight, whereas females lose 18–19% of their weight. Although a trade-off between growth and reproduction may arise at marginal distribution of invasive species, our study indicates that any potential advantages arising from increased growth and therefore potential dispersal ability may not be directly balanced by reduced reproductive investment, with respect to other published studies. Results overall shed light on intrinsic invasiveness of the brown trout in a post-glacial landscape with barely any interaction with human activities. |
author2 |
Ecologie Comportementale et Biologie des Populations de Poissons (ECOBIOP) Institut National de la Recherche Agronomique (INRA)-Université de Pau et des Pays de l'Adour (UPPA) We gratefully acknowledge the support (funding, logistics, travel) provided by the TAAF administration (Terres Australes et Antarctiques Françaises-Mission de Recherche) over all these years and their staff in Paris, La Réunion and Brest, France. This study is part of SALMEVOL-1041 program funded by the French Polar Institute (IPEV) and Institut National de la Recherche Agronomique (INRA). This study is supported by the Zone Atelier Antarctique |
format |
Article in Journal/Newspaper |
author |
Jarry, Marc Beall, Edward Davaine, Patrick Gueraud, Francois Gaudin, Philippe Aymes, Jean-Christophe Labonne, Jacques VIGNON, Matthias |
author_facet |
Jarry, Marc Beall, Edward Davaine, Patrick Gueraud, Francois Gaudin, Philippe Aymes, Jean-Christophe Labonne, Jacques VIGNON, Matthias |
author_sort |
Jarry, Marc |
title |
Sea trout (Salmo trutta) growth patterns during early steps of invasion in the Kerguelen Islands |
title_short |
Sea trout (Salmo trutta) growth patterns during early steps of invasion in the Kerguelen Islands |
title_full |
Sea trout (Salmo trutta) growth patterns during early steps of invasion in the Kerguelen Islands |
title_fullStr |
Sea trout (Salmo trutta) growth patterns during early steps of invasion in the Kerguelen Islands |
title_full_unstemmed |
Sea trout (Salmo trutta) growth patterns during early steps of invasion in the Kerguelen Islands |
title_sort |
sea trout (salmo trutta) growth patterns during early steps of invasion in the kerguelen islands |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://hal.archives-ouvertes.fr/hal-01705841 https://doi.org/10.1007/s00300-018-2253-1 |
geographic |
Antarctic Kerguelen Kerguelen Islands |
geographic_facet |
Antarctic Kerguelen Kerguelen Islands |
genre |
Antarc* Antarctic Kerguelen Islands Polar Biology |
genre_facet |
Antarc* Antarctic Kerguelen Islands Polar Biology |
op_source |
ISSN: 0722-4060 EISSN: 1432-2056 Polar Biology https://hal.archives-ouvertes.fr/hal-01705841 Polar Biology, Springer Verlag, 2018, 41 (5), pp.925-934. ⟨10.1007/s00300-018-2253-1⟩ https://link.springer.com/journal/300 |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-018-2253-1 hal-01705841 https://hal.archives-ouvertes.fr/hal-01705841 doi:10.1007/s00300-018-2253-1 PRODINRA: 421374 WOS: 000431786900008 |
op_doi |
https://doi.org/10.1007/s00300-018-2253-1 |
container_title |
Polar Biology |
container_volume |
41 |
container_issue |
5 |
container_start_page |
925 |
op_container_end_page |
934 |
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1766065126468747264 |