Influence of introduced vs. native parasites on the body condition of migrant silver eels
Because parasitism is among the reasons invoked to explain the collapse of Anguilla anguilla, we evaluated the parasitic constraint on body condition (BC) of migrant silver eels as a proxy of fitness with inter-site comparisons. Metazoan parasites were studied in 149 silver eels from five sites (nor...
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ftpubmed:oai:pubmedcentral.nih.gov:3798887 2023-05-15T13:28:00+02:00 Influence of introduced vs. native parasites on the body condition of migrant silver eels Gérard, Claudia Trancart, Thomas Amilhat, Elsa Faliex, Elisabeth Virag, Laure Feunteun, Eric Acou, Anthony 2013 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3798887 http://www.ncbi.nlm.nih.gov/pubmed/24135272 https://doi.org/10.1051/parasite/2013040 en eng EDP Sciences http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3798887 http://www.ncbi.nlm.nih.gov/pubmed/24135272 http://dx.doi.org/10.1051/parasite/2013040 © C. Gérard et al., published by EDP Sciences, 2013 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. CC-BY Research Article Text 2013 ftpubmed https://doi.org/10.1051/parasite/2013040 2013-10-27T00:34:09Z Because parasitism is among the reasons invoked to explain the collapse of Anguilla anguilla, we evaluated the parasitic constraint on body condition (BC) of migrant silver eels as a proxy of fitness with inter-site comparisons. Metazoan parasites were studied in 149 silver eels from five sites (northern Europe). In total, 89% were infected by 13 species including Myxozoa, Monogenea, Cestoda, Nematoda, and Acanthocephala. Anguillicoloides crassus was most common (56%), then Acanthocephalus clavula (30%), and Pseudodactylogyrus sp. (17%). BC, calculated for 58 females, was negatively correlated by abundance of the introduced Pseudodactylogyrus sp. but not by other parasite taxa. Nevertheless, the introduced A. crassus was considered as a severe pathogen based on previous data, whereas the native A. clavula was supposed to have limited impact. Parasite component communities and BC were different between sites. Silver eels from Stockholm Archipelago (Sweden) were the least parasitized (40% vs. 90–95% for other sites) with no parasites on the gills. Burrishoole (Ireland) differed by the absence of A. crassus and high prevalence of A. clavula (84%) but without consequences on BC. Gudenaa (Denmark), Corrib (Ireland), and Frémur (France) were close due to high prevalence of A. crassus (89–93%). Gudenaa and Corrib were the most similar because Pseudodactylogyrus sp. was also highly prevalent (respectively 71% and 60%) whereas absent in Frémur. Our results suggest that the fitness loss induced by the introduced parasites could affect the spawning success of migrant silver eels from Gudenaa and Corrib, and to a lesser extent from Frémur, but probably not those from Stockholm Archipelago and Burrishoole. Text Anguilla anguilla PubMed Central (PMC) Parasite 20 38 |
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Research Article Gérard, Claudia Trancart, Thomas Amilhat, Elsa Faliex, Elisabeth Virag, Laure Feunteun, Eric Acou, Anthony Influence of introduced vs. native parasites on the body condition of migrant silver eels |
topic_facet |
Research Article |
description |
Because parasitism is among the reasons invoked to explain the collapse of Anguilla anguilla, we evaluated the parasitic constraint on body condition (BC) of migrant silver eels as a proxy of fitness with inter-site comparisons. Metazoan parasites were studied in 149 silver eels from five sites (northern Europe). In total, 89% were infected by 13 species including Myxozoa, Monogenea, Cestoda, Nematoda, and Acanthocephala. Anguillicoloides crassus was most common (56%), then Acanthocephalus clavula (30%), and Pseudodactylogyrus sp. (17%). BC, calculated for 58 females, was negatively correlated by abundance of the introduced Pseudodactylogyrus sp. but not by other parasite taxa. Nevertheless, the introduced A. crassus was considered as a severe pathogen based on previous data, whereas the native A. clavula was supposed to have limited impact. Parasite component communities and BC were different between sites. Silver eels from Stockholm Archipelago (Sweden) were the least parasitized (40% vs. 90–95% for other sites) with no parasites on the gills. Burrishoole (Ireland) differed by the absence of A. crassus and high prevalence of A. clavula (84%) but without consequences on BC. Gudenaa (Denmark), Corrib (Ireland), and Frémur (France) were close due to high prevalence of A. crassus (89–93%). Gudenaa and Corrib were the most similar because Pseudodactylogyrus sp. was also highly prevalent (respectively 71% and 60%) whereas absent in Frémur. Our results suggest that the fitness loss induced by the introduced parasites could affect the spawning success of migrant silver eels from Gudenaa and Corrib, and to a lesser extent from Frémur, but probably not those from Stockholm Archipelago and Burrishoole. |
format |
Text |
author |
Gérard, Claudia Trancart, Thomas Amilhat, Elsa Faliex, Elisabeth Virag, Laure Feunteun, Eric Acou, Anthony |
author_facet |
Gérard, Claudia Trancart, Thomas Amilhat, Elsa Faliex, Elisabeth Virag, Laure Feunteun, Eric Acou, Anthony |
author_sort |
Gérard, Claudia |
title |
Influence of introduced vs. native parasites on the body condition of migrant silver eels |
title_short |
Influence of introduced vs. native parasites on the body condition of migrant silver eels |
title_full |
Influence of introduced vs. native parasites on the body condition of migrant silver eels |
title_fullStr |
Influence of introduced vs. native parasites on the body condition of migrant silver eels |
title_full_unstemmed |
Influence of introduced vs. native parasites on the body condition of migrant silver eels |
title_sort |
influence of introduced vs. native parasites on the body condition of migrant silver eels |
publisher |
EDP Sciences |
publishDate |
2013 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3798887 http://www.ncbi.nlm.nih.gov/pubmed/24135272 https://doi.org/10.1051/parasite/2013040 |
genre |
Anguilla anguilla |
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Anguilla anguilla |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3798887 http://www.ncbi.nlm.nih.gov/pubmed/24135272 http://dx.doi.org/10.1051/parasite/2013040 |
op_rights |
© C. Gérard et al., published by EDP Sciences, 2013 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1051/parasite/2013040 |
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Parasite |
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20 |
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38 |
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