Data from: Population genetics of the American eel (Anguilla rostrata): FST = 0 and NAO effects on demographic fluctuations of a panmictic species
We performed population genetic analyses on the American eel (Anguilla rostrata) with three main objectives. First, we conducted the most comprehensive analysis of neutral genetic population structure to date in order to revisit the null hypothesis of panmixia in this species. Second, we used this d...
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ftzenodo:oai:zenodo.org:4993121 2023-06-06T11:56:44+02:00 Data from: Population genetics of the American eel (Anguilla rostrata): FST = 0 and NAO effects on demographic fluctuations of a panmictic species Côté, Caroline L. Castonguay, Martin Gagnaire, Pierre-Alexandre Bourret, Vincent Verreault, Guy Bernatchez, Louis 2012-10-25 https://zenodo.org/record/4993121 https://doi.org/10.5061/dryad.39jb0 unknown doi:10.1111/mec.12142 https://zenodo.org/communities/dryad https://zenodo.org/record/4993121 https://doi.org/10.5061/dryad.39jb0 oai:zenodo.org:4993121 info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode Anguilla rostrata Conservation Biology Wildlife Management info:eu-repo/semantics/other dataset 2012 ftzenodo https://doi.org/10.5061/dryad.39jb010.1111/mec.12142 2023-04-13T21:27:26Z We performed population genetic analyses on the American eel (Anguilla rostrata) with three main objectives. First, we conducted the most comprehensive analysis of neutral genetic population structure to date in order to revisit the null hypothesis of panmixia in this species. Second, we used this data to provide the first estimates of contemporary effective population size (Ne) and to document temporal variation in effective number of breeders (Nb) in American eel. Third, we tested for statistical associations between temporal variation in the North Atlantic Oscillation (NAO) index, the effective number of breeders and two indices of recruit abundance. A total of 2142 eels from 32 sampling locations were genotyped with 18 microsatellite loci. All measures of differentiation were essentially zero, and no evidence for significant spatial or temporal genetic differentiation was found. The panmixia hypothesis should thus be accepted for this species. Nb estimates varied by a factor of 23 among 12 cohorts, from 473 to 10 999. The effective population size Ne was estimated to be around 22 382. This study also showed that genetically based demographic indices, namely Nb and allelic richness (Ar), can be used as surrogates for the abundance of breeders and recruits, which were both shown to be positively influenced by variation during high (positive) NAO phases. Thus, long-term genetic monitoring of American glass eels at several sites along the North American Atlantic coast would represent a powerful and efficient complement to census monitoring to track demographic fluctuations and better understand their causes. genotype_age_location_Dryad2012American glass eels recruitment begins in Florida around December and progresses northward to Newfoundland–Labrador until June/July (Helfman et al. 1987). The first waves of glass eels at each location were sampled in 2008 following this latitudinal trend at 17 sites evenly distributed along eastern North America up to the St. Lawrence estuary. For each location, 50 ... Dataset Newfoundland North Atlantic North Atlantic oscillation Zenodo Newfoundland |
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Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Anguilla rostrata Conservation Biology Wildlife Management |
spellingShingle |
Anguilla rostrata Conservation Biology Wildlife Management Côté, Caroline L. Castonguay, Martin Gagnaire, Pierre-Alexandre Bourret, Vincent Verreault, Guy Bernatchez, Louis Data from: Population genetics of the American eel (Anguilla rostrata): FST = 0 and NAO effects on demographic fluctuations of a panmictic species |
topic_facet |
Anguilla rostrata Conservation Biology Wildlife Management |
description |
We performed population genetic analyses on the American eel (Anguilla rostrata) with three main objectives. First, we conducted the most comprehensive analysis of neutral genetic population structure to date in order to revisit the null hypothesis of panmixia in this species. Second, we used this data to provide the first estimates of contemporary effective population size (Ne) and to document temporal variation in effective number of breeders (Nb) in American eel. Third, we tested for statistical associations between temporal variation in the North Atlantic Oscillation (NAO) index, the effective number of breeders and two indices of recruit abundance. A total of 2142 eels from 32 sampling locations were genotyped with 18 microsatellite loci. All measures of differentiation were essentially zero, and no evidence for significant spatial or temporal genetic differentiation was found. The panmixia hypothesis should thus be accepted for this species. Nb estimates varied by a factor of 23 among 12 cohorts, from 473 to 10 999. The effective population size Ne was estimated to be around 22 382. This study also showed that genetically based demographic indices, namely Nb and allelic richness (Ar), can be used as surrogates for the abundance of breeders and recruits, which were both shown to be positively influenced by variation during high (positive) NAO phases. Thus, long-term genetic monitoring of American glass eels at several sites along the North American Atlantic coast would represent a powerful and efficient complement to census monitoring to track demographic fluctuations and better understand their causes. genotype_age_location_Dryad2012American glass eels recruitment begins in Florida around December and progresses northward to Newfoundland–Labrador until June/July (Helfman et al. 1987). The first waves of glass eels at each location were sampled in 2008 following this latitudinal trend at 17 sites evenly distributed along eastern North America up to the St. Lawrence estuary. For each location, 50 ... |
format |
Dataset |
author |
Côté, Caroline L. Castonguay, Martin Gagnaire, Pierre-Alexandre Bourret, Vincent Verreault, Guy Bernatchez, Louis |
author_facet |
Côté, Caroline L. Castonguay, Martin Gagnaire, Pierre-Alexandre Bourret, Vincent Verreault, Guy Bernatchez, Louis |
author_sort |
Côté, Caroline L. |
title |
Data from: Population genetics of the American eel (Anguilla rostrata): FST = 0 and NAO effects on demographic fluctuations of a panmictic species |
title_short |
Data from: Population genetics of the American eel (Anguilla rostrata): FST = 0 and NAO effects on demographic fluctuations of a panmictic species |
title_full |
Data from: Population genetics of the American eel (Anguilla rostrata): FST = 0 and NAO effects on demographic fluctuations of a panmictic species |
title_fullStr |
Data from: Population genetics of the American eel (Anguilla rostrata): FST = 0 and NAO effects on demographic fluctuations of a panmictic species |
title_full_unstemmed |
Data from: Population genetics of the American eel (Anguilla rostrata): FST = 0 and NAO effects on demographic fluctuations of a panmictic species |
title_sort |
data from: population genetics of the american eel (anguilla rostrata): fst = 0 and nao effects on demographic fluctuations of a panmictic species |
publishDate |
2012 |
url |
https://zenodo.org/record/4993121 https://doi.org/10.5061/dryad.39jb0 |
geographic |
Newfoundland |
geographic_facet |
Newfoundland |
genre |
Newfoundland North Atlantic North Atlantic oscillation |
genre_facet |
Newfoundland North Atlantic North Atlantic oscillation |
op_relation |
doi:10.1111/mec.12142 https://zenodo.org/communities/dryad https://zenodo.org/record/4993121 https://doi.org/10.5061/dryad.39jb0 oai:zenodo.org:4993121 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5061/dryad.39jb010.1111/mec.12142 |
_version_ |
1767964484730617856 |