Isotopic niches of diadromous fishes inform on interspecific competition in an obstructed catchment
International audience Competition arises when species share a limited resource, but this can be avoided through niche partitioning. Despite the large body of literature on diadromous fishes, very few studies have focused on niche partitioning when competing for resources. Diadromous fishes are suff...
Published in: | Frontiers in Ecology and Evolution |
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Main Authors: | , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2023
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Subjects: | |
Online Access: | https://hal.inrae.fr/hal-04384199 https://hal.inrae.fr/hal-04384199/document https://hal.inrae.fr/hal-04384199/file/fevo-11-1242452.pdf https://doi.org/10.3389/fevo.2023.1242452 |
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Open Polar |
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HAL e2s UPPA (Université de Pau et des Pays de l'Adour) |
op_collection_id |
ftunivpau |
language |
English |
topic |
diadromous fishes stable isotopes trophic niche competition dam catchment [SDE]Environmental Sciences |
spellingShingle |
diadromous fishes stable isotopes trophic niche competition dam catchment [SDE]Environmental Sciences Lizé, Anne Teichert, Nils Roussel, Jean-Marc Acou, Anthony Feunteun, Éric Carpentier, Alexandre Isotopic niches of diadromous fishes inform on interspecific competition in an obstructed catchment |
topic_facet |
diadromous fishes stable isotopes trophic niche competition dam catchment [SDE]Environmental Sciences |
description |
International audience Competition arises when species share a limited resource, but this can be avoided through niche partitioning. Despite the large body of literature on diadromous fishes, very few studies have focused on niche partitioning when competing for resources. Diadromous fishes are suffering a global decline throughout their range in part due to their peculiar life history traits as they migrate from the sea to freshwater to spawn or the reverse. They are particularly sensitive to river fragmentation induced by barriers. Dams for instance are expected to alter the spatial distribution and resource exploitation of diadromous fishes as well as other organisms. Here, we studied the ecological niche of six taxa of diadromous fishes, temporally co-occurring in the same land–sea continuum obstructed by two river dams. We used Bayesian mixing models run on C and N isotopes to infer the various habitats used and the origin of the trophic carbon in muscle and scale tissues of diadromous fishes. Results showed that the sub-adults of Anguilla anguilla , juveniles of Petromyzon marinus , and Salmo trutta exploit mainly the freshwater, or marine part for adults of Lampetra fluviatilis , whereas juveniles of Platichthys flesus and Mugilidae use all the habitats of the land–sea continuum. In the freshwater habitat, the microphytobenthos and biofilm are the main sources of carbon used, while in the marine habitat, the basal carbon sources are more diverse. The analyses of niche overlaps between diadromous fishes demonstrate that the widest isotopic niches, observed for A. anguilla and P. flesus , also have more impact within the community. Results are discussed in terms of intra- and interspecific competition between these diadromous fishes and their generalist/specialist strategies in an obstructed catchment. |
author2 |
Biologie des Organismes et Ecosystèmes Aquatiques (BOREA) Université de Caen Normandie (UNICAEN) Normandie Université (NU)-Normandie Université (NU)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA) Centre De Recherche et d'Enseignement sur les Systèmes Côtiers (CRESCO) Muséum national d'Histoire naturelle (MNHN)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) University of Liverpool Pôle OFB-INRAE-Institut Agro-UPPA pour la gestion des migrateurs amphihalins dans leur environnement (MIAME) Université de Pau et des Pays de l'Adour (UPPA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Office français de la biodiversité (OFB)-Institut Agro Rennes Angers Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro) Dynamique et durabilité des écosystèmes : de la source à l’océan (DECOD) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut Agro Rennes Angers Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro) Patrimoine naturel (PatriNat) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Direction surveillance, évaluation,données (OFB - DSUED) Office français de la biodiversité (OFB)-Office français de la biodiversité (OFB) Centre de Géo-Écologie Littorale (CGEL) École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.) Université de Rennes (UR) |
format |
Article in Journal/Newspaper |
author |
Lizé, Anne Teichert, Nils Roussel, Jean-Marc Acou, Anthony Feunteun, Éric Carpentier, Alexandre |
author_facet |
Lizé, Anne Teichert, Nils Roussel, Jean-Marc Acou, Anthony Feunteun, Éric Carpentier, Alexandre |
author_sort |
Lizé, Anne |
title |
Isotopic niches of diadromous fishes inform on interspecific competition in an obstructed catchment |
title_short |
Isotopic niches of diadromous fishes inform on interspecific competition in an obstructed catchment |
title_full |
Isotopic niches of diadromous fishes inform on interspecific competition in an obstructed catchment |
title_fullStr |
Isotopic niches of diadromous fishes inform on interspecific competition in an obstructed catchment |
title_full_unstemmed |
Isotopic niches of diadromous fishes inform on interspecific competition in an obstructed catchment |
title_sort |
isotopic niches of diadromous fishes inform on interspecific competition in an obstructed catchment |
publisher |
HAL CCSD |
publishDate |
2023 |
url |
https://hal.inrae.fr/hal-04384199 https://hal.inrae.fr/hal-04384199/document https://hal.inrae.fr/hal-04384199/file/fevo-11-1242452.pdf https://doi.org/10.3389/fevo.2023.1242452 |
genre |
Anguilla anguilla |
genre_facet |
Anguilla anguilla |
op_source |
ISSN: 2296-701X Frontiers in Ecology and Evolution https://hal.inrae.fr/hal-04384199 Frontiers in Ecology and Evolution, 2023, 11, pp.1242452. ⟨10.3389/fevo.2023.1242452⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.3389/fevo.2023.1242452 hal-04384199 https://hal.inrae.fr/hal-04384199 https://hal.inrae.fr/hal-04384199/document https://hal.inrae.fr/hal-04384199/file/fevo-11-1242452.pdf doi:10.3389/fevo.2023.1242452 WOS: 001122458300001 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.3389/fevo.2023.1242452 |
container_title |
Frontiers in Ecology and Evolution |
container_volume |
11 |
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1802640999216840704 |
spelling |
ftunivpau:oai:HAL:hal-04384199v1 2024-06-23T07:45:34+00:00 Isotopic niches of diadromous fishes inform on interspecific competition in an obstructed catchment Lizé, Anne Teichert, Nils Roussel, Jean-Marc Acou, Anthony Feunteun, Éric Carpentier, Alexandre Biologie des Organismes et Ecosystèmes Aquatiques (BOREA) Université de Caen Normandie (UNICAEN) Normandie Université (NU)-Normandie Université (NU)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA) Centre De Recherche et d'Enseignement sur les Systèmes Côtiers (CRESCO) Muséum national d'Histoire naturelle (MNHN)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) University of Liverpool Pôle OFB-INRAE-Institut Agro-UPPA pour la gestion des migrateurs amphihalins dans leur environnement (MIAME) Université de Pau et des Pays de l'Adour (UPPA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Office français de la biodiversité (OFB)-Institut Agro Rennes Angers Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro) Dynamique et durabilité des écosystèmes : de la source à l’océan (DECOD) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut Agro Rennes Angers Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro) Patrimoine naturel (PatriNat) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Direction surveillance, évaluation,données (OFB - DSUED) Office français de la biodiversité (OFB)-Office français de la biodiversité (OFB) Centre de Géo-Écologie Littorale (CGEL) École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.) Université de Rennes (UR) 2023-11-28 https://hal.inrae.fr/hal-04384199 https://hal.inrae.fr/hal-04384199/document https://hal.inrae.fr/hal-04384199/file/fevo-11-1242452.pdf https://doi.org/10.3389/fevo.2023.1242452 en eng HAL CCSD Frontiers Media info:eu-repo/semantics/altIdentifier/doi/10.3389/fevo.2023.1242452 hal-04384199 https://hal.inrae.fr/hal-04384199 https://hal.inrae.fr/hal-04384199/document https://hal.inrae.fr/hal-04384199/file/fevo-11-1242452.pdf doi:10.3389/fevo.2023.1242452 WOS: 001122458300001 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 2296-701X Frontiers in Ecology and Evolution https://hal.inrae.fr/hal-04384199 Frontiers in Ecology and Evolution, 2023, 11, pp.1242452. ⟨10.3389/fevo.2023.1242452⟩ diadromous fishes stable isotopes trophic niche competition dam catchment [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2023 ftunivpau https://doi.org/10.3389/fevo.2023.1242452 2024-06-03T14:10:40Z International audience Competition arises when species share a limited resource, but this can be avoided through niche partitioning. Despite the large body of literature on diadromous fishes, very few studies have focused on niche partitioning when competing for resources. Diadromous fishes are suffering a global decline throughout their range in part due to their peculiar life history traits as they migrate from the sea to freshwater to spawn or the reverse. They are particularly sensitive to river fragmentation induced by barriers. Dams for instance are expected to alter the spatial distribution and resource exploitation of diadromous fishes as well as other organisms. Here, we studied the ecological niche of six taxa of diadromous fishes, temporally co-occurring in the same land–sea continuum obstructed by two river dams. We used Bayesian mixing models run on C and N isotopes to infer the various habitats used and the origin of the trophic carbon in muscle and scale tissues of diadromous fishes. Results showed that the sub-adults of Anguilla anguilla , juveniles of Petromyzon marinus , and Salmo trutta exploit mainly the freshwater, or marine part for adults of Lampetra fluviatilis , whereas juveniles of Platichthys flesus and Mugilidae use all the habitats of the land–sea continuum. In the freshwater habitat, the microphytobenthos and biofilm are the main sources of carbon used, while in the marine habitat, the basal carbon sources are more diverse. The analyses of niche overlaps between diadromous fishes demonstrate that the widest isotopic niches, observed for A. anguilla and P. flesus , also have more impact within the community. Results are discussed in terms of intra- and interspecific competition between these diadromous fishes and their generalist/specialist strategies in an obstructed catchment. Article in Journal/Newspaper Anguilla anguilla HAL e2s UPPA (Université de Pau et des Pays de l'Adour) Frontiers in Ecology and Evolution 11 |