Genetic signatures in an invasive parasite of Anguilla anguilla correlate with differential stock management
In this article, it is shown that available genetic tools for the omnipresent parasite Anguillicoloides crassus in European eels Anguilla anguilla are sensitive to different immigration rates into local A. anguilla stocks for two separated river systems. Relying on four highly polymorphic microsatel...
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ftubkonstanz:oai:kops.uni-konstanz.de:123456789/13582 2024-02-11T09:55:30+01:00 Genetic signatures in an invasive parasite of Anguilla anguilla correlate with differential stock management Hollandt, F. Wielgoss, Sébastien Wirth, Thierry Meyer, Axel 2010 application/pdf http://nbn-resolving.de/urn:nbn:de:bsz:352-135824 https://doi.org/10.1111/j.1095-8649.2010.02670.x eng eng http://nbn-resolving.de/urn:nbn:de:bsz:352-135824 http://dx.doi.org/10.1111/j.1095-8649.2010.02670.x 20646147 345782569 https://rightsstatements.org/page/InC/1.0/ Journal of Fish Biology. 2010, 77(1), pp. 191-210. eISSN 1095-8649. Available under: doi:10.1111/j.1095-8649.2010.02670.x A. crassus biological tag European eel fish stocking parasite Wahlund effect ddc:570 doc-type:article doc-type:Text 2010 ftubkonstanz https://doi.org/10.1111/j.1095-8649.2010.02670.x 2024-01-21T23:57:52Z In this article, it is shown that available genetic tools for the omnipresent parasite Anguillicoloides crassus in European eels Anguilla anguilla are sensitive to different immigration rates into local A. anguilla stocks for two separated river systems. Relying on four highly polymorphic microsatellite markers, it was inferred that under natural recruitment, nematode samples meet Hardy–Weinberg expectations for a single panmictic population, while genetic signals show signs for a strong Wahlund effect most likely due to very recent population mixing under frequent restocking of young A. anguilla. This was indicated by a low but significant FST value among within-host populations (infrapopulations) along with high inbreeding indices FIS consistent over all loci. The latter signal is shown to stem from high levels of admixture and the presence of first-generation migrants, and alternative explanations such as marker- and sex-specific biases in the nematode populations could be dismissed. Moreover, the slightly increased degree of relatedness within infrapopulations in the stocked river system cannot explain the excessive inbreeding values found and are most likely a direct consequence of recent influx of already infected fish harbouring parasites with different genetic signatures. Applying a simulation approach using known variables from the nematode's invasion history, only the artificial introduction of a Wahlund effect leads to a close match between simulated and real data, which is a strong argument for using the parasite as a biological tag for detecting and characterizing fish translocation. published published Article in Journal/Newspaper Anguilla anguilla KOPS - The Institutional Repository of the University of Konstanz Journal of Fish Biology 77 1 191 210 |
institution |
Open Polar |
collection |
KOPS - The Institutional Repository of the University of Konstanz |
op_collection_id |
ftubkonstanz |
language |
English |
topic |
A. crassus biological tag European eel fish stocking parasite Wahlund effect ddc:570 |
spellingShingle |
A. crassus biological tag European eel fish stocking parasite Wahlund effect ddc:570 Hollandt, F. Wielgoss, Sébastien Wirth, Thierry Meyer, Axel Genetic signatures in an invasive parasite of Anguilla anguilla correlate with differential stock management |
topic_facet |
A. crassus biological tag European eel fish stocking parasite Wahlund effect ddc:570 |
description |
In this article, it is shown that available genetic tools for the omnipresent parasite Anguillicoloides crassus in European eels Anguilla anguilla are sensitive to different immigration rates into local A. anguilla stocks for two separated river systems. Relying on four highly polymorphic microsatellite markers, it was inferred that under natural recruitment, nematode samples meet Hardy–Weinberg expectations for a single panmictic population, while genetic signals show signs for a strong Wahlund effect most likely due to very recent population mixing under frequent restocking of young A. anguilla. This was indicated by a low but significant FST value among within-host populations (infrapopulations) along with high inbreeding indices FIS consistent over all loci. The latter signal is shown to stem from high levels of admixture and the presence of first-generation migrants, and alternative explanations such as marker- and sex-specific biases in the nematode populations could be dismissed. Moreover, the slightly increased degree of relatedness within infrapopulations in the stocked river system cannot explain the excessive inbreeding values found and are most likely a direct consequence of recent influx of already infected fish harbouring parasites with different genetic signatures. Applying a simulation approach using known variables from the nematode's invasion history, only the artificial introduction of a Wahlund effect leads to a close match between simulated and real data, which is a strong argument for using the parasite as a biological tag for detecting and characterizing fish translocation. published published |
format |
Article in Journal/Newspaper |
author |
Hollandt, F. Wielgoss, Sébastien Wirth, Thierry Meyer, Axel |
author_facet |
Hollandt, F. Wielgoss, Sébastien Wirth, Thierry Meyer, Axel |
author_sort |
Hollandt, F. |
title |
Genetic signatures in an invasive parasite of Anguilla anguilla correlate with differential stock management |
title_short |
Genetic signatures in an invasive parasite of Anguilla anguilla correlate with differential stock management |
title_full |
Genetic signatures in an invasive parasite of Anguilla anguilla correlate with differential stock management |
title_fullStr |
Genetic signatures in an invasive parasite of Anguilla anguilla correlate with differential stock management |
title_full_unstemmed |
Genetic signatures in an invasive parasite of Anguilla anguilla correlate with differential stock management |
title_sort |
genetic signatures in an invasive parasite of anguilla anguilla correlate with differential stock management |
publishDate |
2010 |
url |
http://nbn-resolving.de/urn:nbn:de:bsz:352-135824 https://doi.org/10.1111/j.1095-8649.2010.02670.x |
genre |
Anguilla anguilla |
genre_facet |
Anguilla anguilla |
op_source |
Journal of Fish Biology. 2010, 77(1), pp. 191-210. eISSN 1095-8649. Available under: doi:10.1111/j.1095-8649.2010.02670.x |
op_relation |
http://nbn-resolving.de/urn:nbn:de:bsz:352-135824 http://dx.doi.org/10.1111/j.1095-8649.2010.02670.x 20646147 345782569 |
op_rights |
https://rightsstatements.org/page/InC/1.0/ |
op_doi |
https://doi.org/10.1111/j.1095-8649.2010.02670.x |
container_title |
Journal of Fish Biology |
container_volume |
77 |
container_issue |
1 |
container_start_page |
191 |
op_container_end_page |
210 |
_version_ |
1790596739440312320 |