Infection with swim bladder nematode Anguillicola crassus in relation to European eel growth, age, and habitat along the German Baltic coast
One possible reason for the European eel (Anguilla anguilla) population decline is the neozoan eel swim bladder nematode Anguillicola crassus. To investigate whether the prevalence of A. crassus and the associated swim bladder pathology is related to eel habitat, growth rate, and age, 728 yellow eel...
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ftopenagrar:oai:www.openagrar.de:openagrar_mods_00089613 2023-10-09T21:44:36+02:00 Infection with swim bladder nematode Anguillicola crassus in relation to European eel growth, age, and habitat along the German Baltic coast Simon, Janek Ubl, Claus Lewin, Wolf-Christian Dorow, Malte 2023 https://doi.org/10.3354/dao03739 https://www.openagrar.de/receive/openagrar_mods_00089613 https://www.openagrar.de/servlets/MCRFileNodeServlet/openagrar_derivate_00054738/dn066770.pdf eng eng Diseases of aquatic organisms -- Dis Aquat Organ; Dis Aquat Org; DAO -- 1616-1580 -- 2036223-7 -- 0177-5103 -- 286079-x -- http://www.int-res.com/journals/dao/dao-home/ -- http://www.bibliothek.uni-regensburg.de/ezeit/?2036223 https://doi.org/10.3354/dao03739 https://www.openagrar.de/receive/openagrar_mods_00089613 https://www.openagrar.de/servlets/MCRFileNodeServlet/openagrar_derivate_00054738/dn066770.pdf all rights reserved only signed in user info:eu-repo/semantics/restrictedAccess article Text ddc:590 Anguilla anguilla Baltic Sea Nematode Neozoan Parasitism Salinity article Text doc-type:article 2023 ftopenagrar https://doi.org/10.3354/dao03739 2023-09-10T23:07:55Z One possible reason for the European eel (Anguilla anguilla) population decline is the neozoan eel swim bladder nematode Anguillicola crassus. To investigate whether the prevalence of A. crassus and the associated swim bladder pathology is related to eel habitat, growth rate, and age, 728 yellow eels from 6 habitats differing in salinity and located along the German Baltic coast were examined between 2005 and 2009. The prevalence of A. crassus varied between habitats, ranging from 9 to 57%. Infection prevalence and the percentage of eels with a damaged swim bladder were significantly higher in inner coastal waters compared to more saline open coastal water. In infected eels, 1 to 32 adult and preadult individuals of A. crassus were observed. The mean infection intensity varied between habitats from 2 to 7 nematodes per eel but did not significantly differ between inner and open coastal waters. Infection prevalence and intensity decreased significantly with age when all open coastal waters and all habitats were combined. Both the lower prevalence of A. crassus and the swim bladder damage of older eels and of eels originating from open coastal water habitats suggest that these eels have a higher fitness for spawning migrations than eels from inner coastal waters. The present study underlines the importance of eel screening on a sufficiently small geographical scale for the accurate estimation of eel recruitment and the identification of priority areas that are likely to produce healthy silver eels. Article in Journal/Newspaper Anguilla anguilla OpenAgrar (OA) Diseases of Aquatic Organisms 155 21 33 |
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ftopenagrar |
language |
English |
topic |
article Text ddc:590 Anguilla anguilla Baltic Sea Nematode Neozoan Parasitism Salinity |
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article Text ddc:590 Anguilla anguilla Baltic Sea Nematode Neozoan Parasitism Salinity Simon, Janek Ubl, Claus Lewin, Wolf-Christian Dorow, Malte Infection with swim bladder nematode Anguillicola crassus in relation to European eel growth, age, and habitat along the German Baltic coast |
topic_facet |
article Text ddc:590 Anguilla anguilla Baltic Sea Nematode Neozoan Parasitism Salinity |
description |
One possible reason for the European eel (Anguilla anguilla) population decline is the neozoan eel swim bladder nematode Anguillicola crassus. To investigate whether the prevalence of A. crassus and the associated swim bladder pathology is related to eel habitat, growth rate, and age, 728 yellow eels from 6 habitats differing in salinity and located along the German Baltic coast were examined between 2005 and 2009. The prevalence of A. crassus varied between habitats, ranging from 9 to 57%. Infection prevalence and the percentage of eels with a damaged swim bladder were significantly higher in inner coastal waters compared to more saline open coastal water. In infected eels, 1 to 32 adult and preadult individuals of A. crassus were observed. The mean infection intensity varied between habitats from 2 to 7 nematodes per eel but did not significantly differ between inner and open coastal waters. Infection prevalence and intensity decreased significantly with age when all open coastal waters and all habitats were combined. Both the lower prevalence of A. crassus and the swim bladder damage of older eels and of eels originating from open coastal water habitats suggest that these eels have a higher fitness for spawning migrations than eels from inner coastal waters. The present study underlines the importance of eel screening on a sufficiently small geographical scale for the accurate estimation of eel recruitment and the identification of priority areas that are likely to produce healthy silver eels. |
format |
Article in Journal/Newspaper |
author |
Simon, Janek Ubl, Claus Lewin, Wolf-Christian Dorow, Malte |
author_facet |
Simon, Janek Ubl, Claus Lewin, Wolf-Christian Dorow, Malte |
author_sort |
Simon, Janek |
title |
Infection with swim bladder nematode Anguillicola crassus in relation to European eel growth, age, and habitat along the German Baltic coast |
title_short |
Infection with swim bladder nematode Anguillicola crassus in relation to European eel growth, age, and habitat along the German Baltic coast |
title_full |
Infection with swim bladder nematode Anguillicola crassus in relation to European eel growth, age, and habitat along the German Baltic coast |
title_fullStr |
Infection with swim bladder nematode Anguillicola crassus in relation to European eel growth, age, and habitat along the German Baltic coast |
title_full_unstemmed |
Infection with swim bladder nematode Anguillicola crassus in relation to European eel growth, age, and habitat along the German Baltic coast |
title_sort |
infection with swim bladder nematode anguillicola crassus in relation to european eel growth, age, and habitat along the german baltic coast |
publishDate |
2023 |
url |
https://doi.org/10.3354/dao03739 https://www.openagrar.de/receive/openagrar_mods_00089613 https://www.openagrar.de/servlets/MCRFileNodeServlet/openagrar_derivate_00054738/dn066770.pdf |
genre |
Anguilla anguilla |
genre_facet |
Anguilla anguilla |
op_relation |
Diseases of aquatic organisms -- Dis Aquat Organ; Dis Aquat Org; DAO -- 1616-1580 -- 2036223-7 -- 0177-5103 -- 286079-x -- http://www.int-res.com/journals/dao/dao-home/ -- http://www.bibliothek.uni-regensburg.de/ezeit/?2036223 https://doi.org/10.3354/dao03739 https://www.openagrar.de/receive/openagrar_mods_00089613 https://www.openagrar.de/servlets/MCRFileNodeServlet/openagrar_derivate_00054738/dn066770.pdf |
op_rights |
all rights reserved only signed in user info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.3354/dao03739 |
container_title |
Diseases of Aquatic Organisms |
container_volume |
155 |
container_start_page |
21 |
op_container_end_page |
33 |
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1779312141879214080 |