Genetic sex determination improves Canadian Atlantic salmon ( Salmo salar) population assessments
Abstract Estimating egg deposition for Atlantic salmon population assessments is made difficult by their lack of sexual dimorphism prior to the autumn spawning season. We quantified the effect of sex misclassification from subjective examination of external morphology on egg deposition estimates in...
Published in: | Fisheries Management and Ecology |
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Online Access: | http://dx.doi.org/10.1111/fme.12655 https://onlinelibrary.wiley.com/doi/pdf/10.1111/fme.12655 |
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crwiley:10.1111/fme.12655 2024-06-02T08:03:20+00:00 Genetic sex determination improves Canadian Atlantic salmon ( Salmo salar) population assessments Robertson, Martha J. Lehnert, Sarah J. Kelly, Nicholas I. Hamilton, Lorraine C. Jones, Ross A. Levy, Alex L. Poole, Rebecca Burke, Chantelle M. Duffy, Steven J. Messmer, Amber Bradbury, Ian R. Fisheries and Oceans Canada 2023 http://dx.doi.org/10.1111/fme.12655 https://onlinelibrary.wiley.com/doi/pdf/10.1111/fme.12655 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Fisheries Management and Ecology volume 31, issue 1 ISSN 0969-997X 1365-2400 journal-article 2023 crwiley https://doi.org/10.1111/fme.12655 2024-05-03T10:50:24Z Abstract Estimating egg deposition for Atlantic salmon population assessments is made difficult by their lack of sexual dimorphism prior to the autumn spawning season. We quantified the effect of sex misclassification from subjective examination of external morphology on egg deposition estimates in four Atlantic salmon populations across multiple years. Sex classification of Canadian salmon using the genetic sex marker ( sd Y) was accurate (>97%), whereas sex classification based on subjective examination of external morphology was inaccurate, with misclassification rates dependent on sea age, life history, and sampling season. Sex misclassification led to annual egg deposition estimates that ranged from −36% to +56%. We found that sex could not be discriminated based on measures of external morphology. Article in Journal/Newspaper Atlantic salmon Salmo salar Wiley Online Library Fisheries Management and Ecology 31 1 |
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English |
description |
Abstract Estimating egg deposition for Atlantic salmon population assessments is made difficult by their lack of sexual dimorphism prior to the autumn spawning season. We quantified the effect of sex misclassification from subjective examination of external morphology on egg deposition estimates in four Atlantic salmon populations across multiple years. Sex classification of Canadian salmon using the genetic sex marker ( sd Y) was accurate (>97%), whereas sex classification based on subjective examination of external morphology was inaccurate, with misclassification rates dependent on sea age, life history, and sampling season. Sex misclassification led to annual egg deposition estimates that ranged from −36% to +56%. We found that sex could not be discriminated based on measures of external morphology. |
author2 |
Fisheries and Oceans Canada |
format |
Article in Journal/Newspaper |
author |
Robertson, Martha J. Lehnert, Sarah J. Kelly, Nicholas I. Hamilton, Lorraine C. Jones, Ross A. Levy, Alex L. Poole, Rebecca Burke, Chantelle M. Duffy, Steven J. Messmer, Amber Bradbury, Ian R. |
spellingShingle |
Robertson, Martha J. Lehnert, Sarah J. Kelly, Nicholas I. Hamilton, Lorraine C. Jones, Ross A. Levy, Alex L. Poole, Rebecca Burke, Chantelle M. Duffy, Steven J. Messmer, Amber Bradbury, Ian R. Genetic sex determination improves Canadian Atlantic salmon ( Salmo salar) population assessments |
author_facet |
Robertson, Martha J. Lehnert, Sarah J. Kelly, Nicholas I. Hamilton, Lorraine C. Jones, Ross A. Levy, Alex L. Poole, Rebecca Burke, Chantelle M. Duffy, Steven J. Messmer, Amber Bradbury, Ian R. |
author_sort |
Robertson, Martha J. |
title |
Genetic sex determination improves Canadian Atlantic salmon ( Salmo salar) population assessments |
title_short |
Genetic sex determination improves Canadian Atlantic salmon ( Salmo salar) population assessments |
title_full |
Genetic sex determination improves Canadian Atlantic salmon ( Salmo salar) population assessments |
title_fullStr |
Genetic sex determination improves Canadian Atlantic salmon ( Salmo salar) population assessments |
title_full_unstemmed |
Genetic sex determination improves Canadian Atlantic salmon ( Salmo salar) population assessments |
title_sort |
genetic sex determination improves canadian atlantic salmon ( salmo salar) population assessments |
publisher |
Wiley |
publishDate |
2023 |
url |
http://dx.doi.org/10.1111/fme.12655 https://onlinelibrary.wiley.com/doi/pdf/10.1111/fme.12655 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Fisheries Management and Ecology volume 31, issue 1 ISSN 0969-997X 1365-2400 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/fme.12655 |
container_title |
Fisheries Management and Ecology |
container_volume |
31 |
container_issue |
1 |
_version_ |
1800747836750430208 |