Swim Bladder Nematodes ( Anguillicoloides crassus ) Disturb Silvering In European Eels ( Anguilla anguilla ).
International audience Abstract : The introduced parasite Anguillicoloides crassus is thought to play an important role in the decline of freshwater eel ( Anguilla spp.) populations. These nematodes are known to negatively affect many fitness-related traits in eels. We used experimental infections t...
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Online Access: | https://hal.science/halsde-00728919 https://hal.science/halsde-00728919/document https://hal.science/halsde-00728919/file/Fazio-2012-JParasitol-Swimblader.pdf https://doi.org/10.1645/GE-2700.1 |
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ftecolephe:oai:HAL:halsde-00728919v1 2024-05-19T07:28:30+00:00 Swim Bladder Nematodes ( Anguillicoloides crassus ) Disturb Silvering In European Eels ( Anguilla anguilla ). Fazio, Géraldine Sasal, Pierre Mouahid, Gabriel Lecomte-Finiger, Raymonde Moné, Hélène Independent Researcher Centre de recherches insulaires et observatoire de l'environnement (CRIOBE) Université de Perpignan Via Domitia (UPVD)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) Ecologie et évolution des interactions 2011-2014 (2EI) Université de Perpignan Via Domitia (UPVD)-Centre National de la Recherche Scientifique (CNRS) Université de Perpignan Via Domitia (UPVD) 2012-08 https://hal.science/halsde-00728919 https://hal.science/halsde-00728919/document https://hal.science/halsde-00728919/file/Fazio-2012-JParasitol-Swimblader.pdf https://doi.org/10.1645/GE-2700.1 en eng HAL CCSD American Society of Parasitologists info:eu-repo/semantics/altIdentifier/doi/10.1645/GE-2700.1 info:eu-repo/semantics/altIdentifier/pmid/22404329 halsde-00728919 https://hal.science/halsde-00728919 https://hal.science/halsde-00728919/document https://hal.science/halsde-00728919/file/Fazio-2012-JParasitol-Swimblader.pdf doi:10.1645/GE-2700.1 PUBMED: 22404329 info:eu-repo/semantics/OpenAccess ISSN: 0022-3395 Journal of Parasitology https://hal.science/halsde-00728919 Journal of Parasitology, 2012, 98 (4), pp.695-705. ⟨10.1645/GE-2700.1⟩ [SDE.BE]Environmental Sciences/Biodiversity and Ecology info:eu-repo/semantics/article Journal articles 2012 ftecolephe https://doi.org/10.1645/GE-2700.1 2024-04-25T00:48:50Z International audience Abstract : The introduced parasite Anguillicoloides crassus is thought to play an important role in the decline of freshwater eel ( Anguilla spp.) populations. These nematodes are known to negatively affect many fitness-related traits in eels. We used experimental infections to study the effect of A. crassus on the relative size or mass of organs, and the expression of functionally relevant genes (total of 12 parameters) that are involved in the silvering process of Anguilla anguilla . Our results showed that the liver mass, the hemoglobin α-chain, and androgen receptors α expression levels were significantly higher in infected eels, whereas the freshwater rod opsin expression level and the gut mass were significantly lower in infected eels. Our results suggested that infected eels were at a more advanced stage in the silvering process than uninfected counterparts of similar size. These results may be explained by 2 hypotheses. First, A. crassus could trigger physiological mechanisms involved in the silvering process as a side-effect of infection. Second, eels may adjust their life history traits in response to infection. The implications for eel migration and reproductive success may be either negative or positive, depending on whether the response to A. crassus infection results in an additional cost of the parasite or is due to the phenotypic plasticity of the host. Article in Journal/Newspaper Anguilla anguilla EPHE (Ecole pratique des hautes études, Paris): HAL Journal of Parasitology 98 4 695 705 |
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Open Polar |
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EPHE (Ecole pratique des hautes études, Paris): HAL |
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ftecolephe |
language |
English |
topic |
[SDE.BE]Environmental Sciences/Biodiversity and Ecology |
spellingShingle |
[SDE.BE]Environmental Sciences/Biodiversity and Ecology Fazio, Géraldine Sasal, Pierre Mouahid, Gabriel Lecomte-Finiger, Raymonde Moné, Hélène Swim Bladder Nematodes ( Anguillicoloides crassus ) Disturb Silvering In European Eels ( Anguilla anguilla ). |
topic_facet |
[SDE.BE]Environmental Sciences/Biodiversity and Ecology |
description |
International audience Abstract : The introduced parasite Anguillicoloides crassus is thought to play an important role in the decline of freshwater eel ( Anguilla spp.) populations. These nematodes are known to negatively affect many fitness-related traits in eels. We used experimental infections to study the effect of A. crassus on the relative size or mass of organs, and the expression of functionally relevant genes (total of 12 parameters) that are involved in the silvering process of Anguilla anguilla . Our results showed that the liver mass, the hemoglobin α-chain, and androgen receptors α expression levels were significantly higher in infected eels, whereas the freshwater rod opsin expression level and the gut mass were significantly lower in infected eels. Our results suggested that infected eels were at a more advanced stage in the silvering process than uninfected counterparts of similar size. These results may be explained by 2 hypotheses. First, A. crassus could trigger physiological mechanisms involved in the silvering process as a side-effect of infection. Second, eels may adjust their life history traits in response to infection. The implications for eel migration and reproductive success may be either negative or positive, depending on whether the response to A. crassus infection results in an additional cost of the parasite or is due to the phenotypic plasticity of the host. |
author2 |
Independent Researcher Centre de recherches insulaires et observatoire de l'environnement (CRIOBE) Université de Perpignan Via Domitia (UPVD)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) Ecologie et évolution des interactions 2011-2014 (2EI) Université de Perpignan Via Domitia (UPVD)-Centre National de la Recherche Scientifique (CNRS) Université de Perpignan Via Domitia (UPVD) |
format |
Article in Journal/Newspaper |
author |
Fazio, Géraldine Sasal, Pierre Mouahid, Gabriel Lecomte-Finiger, Raymonde Moné, Hélène |
author_facet |
Fazio, Géraldine Sasal, Pierre Mouahid, Gabriel Lecomte-Finiger, Raymonde Moné, Hélène |
author_sort |
Fazio, Géraldine |
title |
Swim Bladder Nematodes ( Anguillicoloides crassus ) Disturb Silvering In European Eels ( Anguilla anguilla ). |
title_short |
Swim Bladder Nematodes ( Anguillicoloides crassus ) Disturb Silvering In European Eels ( Anguilla anguilla ). |
title_full |
Swim Bladder Nematodes ( Anguillicoloides crassus ) Disturb Silvering In European Eels ( Anguilla anguilla ). |
title_fullStr |
Swim Bladder Nematodes ( Anguillicoloides crassus ) Disturb Silvering In European Eels ( Anguilla anguilla ). |
title_full_unstemmed |
Swim Bladder Nematodes ( Anguillicoloides crassus ) Disturb Silvering In European Eels ( Anguilla anguilla ). |
title_sort |
swim bladder nematodes ( anguillicoloides crassus ) disturb silvering in european eels ( anguilla anguilla ). |
publisher |
HAL CCSD |
publishDate |
2012 |
url |
https://hal.science/halsde-00728919 https://hal.science/halsde-00728919/document https://hal.science/halsde-00728919/file/Fazio-2012-JParasitol-Swimblader.pdf https://doi.org/10.1645/GE-2700.1 |
genre |
Anguilla anguilla |
genre_facet |
Anguilla anguilla |
op_source |
ISSN: 0022-3395 Journal of Parasitology https://hal.science/halsde-00728919 Journal of Parasitology, 2012, 98 (4), pp.695-705. ⟨10.1645/GE-2700.1⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1645/GE-2700.1 info:eu-repo/semantics/altIdentifier/pmid/22404329 halsde-00728919 https://hal.science/halsde-00728919 https://hal.science/halsde-00728919/document https://hal.science/halsde-00728919/file/Fazio-2012-JParasitol-Swimblader.pdf doi:10.1645/GE-2700.1 PUBMED: 22404329 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1645/GE-2700.1 |
container_title |
Journal of Parasitology |
container_volume |
98 |
container_issue |
4 |
container_start_page |
695 |
op_container_end_page |
705 |
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1799473682459918336 |