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...
Published in: | Journal of Parasitology |
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Format: | Article in Journal/Newspaper |
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Online Access: | https://doi.org/10.1645/GE-2700.1 https://hal.archives-ouvertes.fr/halsde-00728919/file/Fazio-2012-JParasitol-Swimblader.pdf https://hal.archives-ouvertes.fr/halsde-00728919 |
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fttriple:oai:gotriple.eu:10670/1.2g55ip 2023-05-15T13:27:10+02:00 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) 2012-08-01 https://doi.org/10.1645/GE-2700.1 https://hal.archives-ouvertes.fr/halsde-00728919/file/Fazio-2012-JParasitol-Swimblader.pdf https://hal.archives-ouvertes.fr/halsde-00728919 en eng HAL CCSD halsde-00728919 doi:10.1645/GE-2700.1 PUBMED: 22404329 10670/1.2g55ip https://hal.archives-ouvertes.fr/halsde-00728919/file/Fazio-2012-JParasitol-Swimblader.pdf https://hal.archives-ouvertes.fr/halsde-00728919 other Hyper Article en Ligne - Sciences de l'Homme et de la Société J Parasitol J Parasitol, 2012, 98 (4), pp.695-705. ⟨10.1645/GE-2700.1⟩ envir droit Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2012 fttriple https://doi.org/10.1645/GE-2700.1 2023-01-22T17:24:09Z 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 Unknown Journal of Parasitology 98 4 695 705 |
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English |
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envir droit |
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envir droit 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 |
envir droit |
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://doi.org/10.1645/GE-2700.1 https://hal.archives-ouvertes.fr/halsde-00728919/file/Fazio-2012-JParasitol-Swimblader.pdf https://hal.archives-ouvertes.fr/halsde-00728919 |
genre |
Anguilla anguilla |
genre_facet |
Anguilla anguilla |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société J Parasitol J Parasitol, 2012, 98 (4), pp.695-705. ⟨10.1645/GE-2700.1⟩ |
op_relation |
halsde-00728919 doi:10.1645/GE-2700.1 PUBMED: 22404329 10670/1.2g55ip https://hal.archives-ouvertes.fr/halsde-00728919/file/Fazio-2012-JParasitol-Swimblader.pdf https://hal.archives-ouvertes.fr/halsde-00728919 |
op_rights |
other |
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 |
_version_ |
1766396857750126592 |