Data from: Estimating the effective number of breeders from single parr samples for conservation monitoring of wild populations of Atlantic salmon Salmo salar
This study assesses whether the effective number of breeders (Nb) can be estimated using a time and cost-effective protocol using genetic sibship reconstruction from a single sample of young-of-the-year (YOY) for the purposes of Atlantic salmon Salmo salar population monitoring. Nb was estimated for...
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Online Access: | http://hdl.handle.net/10255/dryad.164127 https://doi.org/10.5061/dryad.f5229 |
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ftdryad:oai:v1.datadryad.org:10255/dryad.164127 2023-05-15T15:32:12+02:00 Data from: Estimating the effective number of breeders from single parr samples for conservation monitoring of wild populations of Atlantic salmon Salmo salar Bacles, Cecile F. E. Bouchard, Colin Lange, Frédéric Manicki, Aurélie Tentelier, Cédric Lepais, Olivier Nivelle river (France) Environmental Research Observatory on Diadromous Fish in Coastal rivers (ERO DiaPFC) 2018-04-23T15:29:15Z http://hdl.handle.net/10255/dryad.164127 https://doi.org/10.5061/dryad.f5229 unknown doi:10.5061/dryad.f5229/1 doi:10.1111/jfb.13537 doi:10.5061/dryad.f5229 Bacles CFE, Bouchard C, Lange F, Manicki A, Tentelier C, Lepais O (2018) Estimating the effective number of breeders from single parr samples for conservation monitoring of wild populations of Atlantic salmon Salmo salar. Journal of Fish Biology 92(3): 699-726. http://hdl.handle.net/10255/dryad.164127 small population genetics genetic monitoring Colony young-of-the-year sibship reconstruction effective number of breeders Nb Article 2018 ftdryad https://doi.org/10.5061/dryad.f5229 https://doi.org/10.5061/dryad.f5229/1 https://doi.org/10.1111/jfb.13537 2020-01-01T16:00:48Z This study assesses whether the effective number of breeders (Nb) can be estimated using a time and cost-effective protocol using genetic sibship reconstruction from a single sample of young-of-the-year (YOY) for the purposes of Atlantic salmon Salmo salar population monitoring. Nb was estimated for 10 consecutive reproductive seasons for S. salar in the River Nivelle, a small population located at the rear-edge of the species distribution area in France, chronically under its conservation limit and subjected to anthropogenic and environmental changes. Subsampling of real and simulated data showed that accurate estimates of Nb can be obtained from YOY genotypes, collected at moderate random sampling intensity, achievable using routine juvenile electrofishing protocols. Spatial bias and time elapsed since spawning were found to affect estimates, which must be accounted for in sampling designs. Nb estimated in autumn for S. salar in the River Nivelle was low and variable across years from 23 (95% C.I. 14–41) to 75 (53–101) and was not statistically correlated with the estimated number of returning adults, but it was positively correlated with the estimated number of YOY at age 9 months. Nb was found to be lower for intermediate levels of redd aggregation, suggesting that the strength of the competition between males to access females affects reproductive success variance depending on redd spatial configuration. Thus, environmental factors such as habitat availability and quality for spawning and YOY development predominate over demographic ones (number of returning adults) in driving long-term population viability for S. salar in the River Nivelle. This study showcases Nb as an integrated parameter, encompassing demographic and ecological information about a reproductive event, relevant to the assessment of both short-term effects of management practices and long-term population conservation status. Article in Journal/Newspaper Atlantic salmon Salmo salar Dryad Digital Repository (Duke University) |
institution |
Open Polar |
collection |
Dryad Digital Repository (Duke University) |
op_collection_id |
ftdryad |
language |
unknown |
topic |
small population genetics genetic monitoring Colony young-of-the-year sibship reconstruction effective number of breeders Nb |
spellingShingle |
small population genetics genetic monitoring Colony young-of-the-year sibship reconstruction effective number of breeders Nb Bacles, Cecile F. E. Bouchard, Colin Lange, Frédéric Manicki, Aurélie Tentelier, Cédric Lepais, Olivier Data from: Estimating the effective number of breeders from single parr samples for conservation monitoring of wild populations of Atlantic salmon Salmo salar |
topic_facet |
small population genetics genetic monitoring Colony young-of-the-year sibship reconstruction effective number of breeders Nb |
description |
This study assesses whether the effective number of breeders (Nb) can be estimated using a time and cost-effective protocol using genetic sibship reconstruction from a single sample of young-of-the-year (YOY) for the purposes of Atlantic salmon Salmo salar population monitoring. Nb was estimated for 10 consecutive reproductive seasons for S. salar in the River Nivelle, a small population located at the rear-edge of the species distribution area in France, chronically under its conservation limit and subjected to anthropogenic and environmental changes. Subsampling of real and simulated data showed that accurate estimates of Nb can be obtained from YOY genotypes, collected at moderate random sampling intensity, achievable using routine juvenile electrofishing protocols. Spatial bias and time elapsed since spawning were found to affect estimates, which must be accounted for in sampling designs. Nb estimated in autumn for S. salar in the River Nivelle was low and variable across years from 23 (95% C.I. 14–41) to 75 (53–101) and was not statistically correlated with the estimated number of returning adults, but it was positively correlated with the estimated number of YOY at age 9 months. Nb was found to be lower for intermediate levels of redd aggregation, suggesting that the strength of the competition between males to access females affects reproductive success variance depending on redd spatial configuration. Thus, environmental factors such as habitat availability and quality for spawning and YOY development predominate over demographic ones (number of returning adults) in driving long-term population viability for S. salar in the River Nivelle. This study showcases Nb as an integrated parameter, encompassing demographic and ecological information about a reproductive event, relevant to the assessment of both short-term effects of management practices and long-term population conservation status. |
format |
Article in Journal/Newspaper |
author |
Bacles, Cecile F. E. Bouchard, Colin Lange, Frédéric Manicki, Aurélie Tentelier, Cédric Lepais, Olivier |
author_facet |
Bacles, Cecile F. E. Bouchard, Colin Lange, Frédéric Manicki, Aurélie Tentelier, Cédric Lepais, Olivier |
author_sort |
Bacles, Cecile F. E. |
title |
Data from: Estimating the effective number of breeders from single parr samples for conservation monitoring of wild populations of Atlantic salmon Salmo salar |
title_short |
Data from: Estimating the effective number of breeders from single parr samples for conservation monitoring of wild populations of Atlantic salmon Salmo salar |
title_full |
Data from: Estimating the effective number of breeders from single parr samples for conservation monitoring of wild populations of Atlantic salmon Salmo salar |
title_fullStr |
Data from: Estimating the effective number of breeders from single parr samples for conservation monitoring of wild populations of Atlantic salmon Salmo salar |
title_full_unstemmed |
Data from: Estimating the effective number of breeders from single parr samples for conservation monitoring of wild populations of Atlantic salmon Salmo salar |
title_sort |
data from: estimating the effective number of breeders from single parr samples for conservation monitoring of wild populations of atlantic salmon salmo salar |
publishDate |
2018 |
url |
http://hdl.handle.net/10255/dryad.164127 https://doi.org/10.5061/dryad.f5229 |
op_coverage |
Nivelle river (France) Environmental Research Observatory on Diadromous Fish in Coastal rivers (ERO DiaPFC) |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
doi:10.5061/dryad.f5229/1 doi:10.1111/jfb.13537 doi:10.5061/dryad.f5229 Bacles CFE, Bouchard C, Lange F, Manicki A, Tentelier C, Lepais O (2018) Estimating the effective number of breeders from single parr samples for conservation monitoring of wild populations of Atlantic salmon Salmo salar. Journal of Fish Biology 92(3): 699-726. http://hdl.handle.net/10255/dryad.164127 |
op_doi |
https://doi.org/10.5061/dryad.f5229 https://doi.org/10.5061/dryad.f5229/1 https://doi.org/10.1111/jfb.13537 |
_version_ |
1766362698824548352 |