Evaluating the suitability of close-kin mark-recapture as a demographic modelling tool for a critically endangered elasmobranch population

Estimating the demographic parameters of contemporary populations is essential to the success of elasmobranch conservation programmes, and to understanding their recent evolutionary history. For benthic elasmobranchs such as skates, traditional fisheries-independent approaches are often unsuitable a...

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Published in:Evolutionary Applications
Main Authors: Delaval, Aurélien, Bendall, Victoria, Hetherington, Stuart J., Skaug, Hans J., Frost, Michelle, Jones, Catherine S., Noble, Leslie R.
Format: Article in Journal/Newspaper
Language:unknown
Published: Wiley 2022
Subjects:
Online Access:https://doi.org/10.1111/eva.13474
https://napier-repository.worktribe.com/file/2912016/1/Evaluating%20the%20suitability%20of%20close-kin%20mark-recapture%20as%20a%20demographic%20modelling%20tool%20for%20a%20critically%20endangered%20elasmobranch%20population
http://researchrepository.napier.ac.uk/Output/2912016
id ftnapieruniv:oai:repository@napier.ac.uk:2912016
record_format openpolar
spelling ftnapieruniv:oai:repository@napier.ac.uk:2912016 2023-05-15T16:00:59+02:00 Evaluating the suitability of close-kin mark-recapture as a demographic modelling tool for a critically endangered elasmobranch population Delaval, Aurélien Bendall, Victoria Hetherington, Stuart J. Skaug, Hans J. Frost, Michelle Jones, Catherine S. Noble, Leslie R. 2022-08-26 https://doi.org/10.1111/eva.13474 https://napier-repository.worktribe.com/file/2912016/1/Evaluating%20the%20suitability%20of%20close-kin%20mark-recapture%20as%20a%20demographic%20modelling%20tool%20for%20a%20critically%20endangered%20elasmobranch%20population http://researchrepository.napier.ac.uk/Output/2912016 unknown Wiley http://researchrepository.napier.ac.uk/Output/2912016 doi:https://doi.org/10.1111/eva.13474 https://napier-repository.worktribe.com/file/2912016/1/Evaluating%20the%20suitability%20of%20close-kin%20mark-recapture%20as%20a%20demographic%20modelling%20tool%20for%20a%20critically%20endangered%20elasmobranch%20population 1752-4563 10.1111/eva.13474 openAccess http://creativecommons.org/licenses/by/4.0/ CC-BY abundance estimation blue skate close-kin mark-recapture conservation elasmobranch fisheries Journal Article publishedVersion 2022 ftnapieruniv https://doi.org/10.1111/eva.13474 2023-02-16T23:41:34Z Estimating the demographic parameters of contemporary populations is essential to the success of elasmobranch conservation programmes, and to understanding their recent evolutionary history. For benthic elasmobranchs such as skates, traditional fisheries-independent approaches are often unsuitable as the data may be subject to various sources of bias, whilst low recapture rates can render mark-recapture programmes ineffectual. Close-kin mark-recapture (CKMR), a novel demographic modelling approach based on the genetic identification of close relatives within a sample, represents a promising alternative approach as it does not require physical recaptures. We evaluated the suitability of CKMR as a demographic modelling tool for the critically endangered blue skate (Dipturus batis) in the Celtic Sea using samples collected during fisheries-dependent trammel-net surveys that ran from 2011 to 2017. We identified three full-sibling and 16 half-sibling pairs among 662 skates, which were genotyped across 6291 genome-wide single nucleotide polymorphisms, 15 of which were cross-cohort half-sibling pairs that were included in a CKMR model. Despite limitations owing to a lack of validated life-history trait parameters for the species, we produced the first estimates of adult breeding abundance, population growth rate, and annual adult survival rate for D. batis in the Celtic Sea. The results were compared to estimates of genetic diversity, effective population size (Ne), and to catch per unit effort estimates from the trammel-net survey. Although each method was characterized by wide uncertainty bounds, together they suggested a stable population size across the time-series. Recommendations for the implementation of CKMR as a conservation tool for data-limited elasmobranchs are discussed. In addition, the spatio-temporal distribution of the 19 sibling pairs revealed a pattern of site fidelity in D. batis, and supported field observations suggesting an area of critical habitat that could qualify for protection might occur ... Article in Journal/Newspaper Dipturus batis Edinburgh Napier Repository (Napier University Edinburgh) Evolutionary Applications
institution Open Polar
collection Edinburgh Napier Repository (Napier University Edinburgh)
op_collection_id ftnapieruniv
language unknown
topic abundance estimation
blue skate
close-kin mark-recapture
conservation
elasmobranch
fisheries
spellingShingle abundance estimation
blue skate
close-kin mark-recapture
conservation
elasmobranch
fisheries
Delaval, Aurélien
Bendall, Victoria
Hetherington, Stuart J.
Skaug, Hans J.
Frost, Michelle
Jones, Catherine S.
Noble, Leslie R.
Evaluating the suitability of close-kin mark-recapture as a demographic modelling tool for a critically endangered elasmobranch population
topic_facet abundance estimation
blue skate
close-kin mark-recapture
conservation
elasmobranch
fisheries
description Estimating the demographic parameters of contemporary populations is essential to the success of elasmobranch conservation programmes, and to understanding their recent evolutionary history. For benthic elasmobranchs such as skates, traditional fisheries-independent approaches are often unsuitable as the data may be subject to various sources of bias, whilst low recapture rates can render mark-recapture programmes ineffectual. Close-kin mark-recapture (CKMR), a novel demographic modelling approach based on the genetic identification of close relatives within a sample, represents a promising alternative approach as it does not require physical recaptures. We evaluated the suitability of CKMR as a demographic modelling tool for the critically endangered blue skate (Dipturus batis) in the Celtic Sea using samples collected during fisheries-dependent trammel-net surveys that ran from 2011 to 2017. We identified three full-sibling and 16 half-sibling pairs among 662 skates, which were genotyped across 6291 genome-wide single nucleotide polymorphisms, 15 of which were cross-cohort half-sibling pairs that were included in a CKMR model. Despite limitations owing to a lack of validated life-history trait parameters for the species, we produced the first estimates of adult breeding abundance, population growth rate, and annual adult survival rate for D. batis in the Celtic Sea. The results were compared to estimates of genetic diversity, effective population size (Ne), and to catch per unit effort estimates from the trammel-net survey. Although each method was characterized by wide uncertainty bounds, together they suggested a stable population size across the time-series. Recommendations for the implementation of CKMR as a conservation tool for data-limited elasmobranchs are discussed. In addition, the spatio-temporal distribution of the 19 sibling pairs revealed a pattern of site fidelity in D. batis, and supported field observations suggesting an area of critical habitat that could qualify for protection might occur ...
format Article in Journal/Newspaper
author Delaval, Aurélien
Bendall, Victoria
Hetherington, Stuart J.
Skaug, Hans J.
Frost, Michelle
Jones, Catherine S.
Noble, Leslie R.
author_facet Delaval, Aurélien
Bendall, Victoria
Hetherington, Stuart J.
Skaug, Hans J.
Frost, Michelle
Jones, Catherine S.
Noble, Leslie R.
author_sort Delaval, Aurélien
title Evaluating the suitability of close-kin mark-recapture as a demographic modelling tool for a critically endangered elasmobranch population
title_short Evaluating the suitability of close-kin mark-recapture as a demographic modelling tool for a critically endangered elasmobranch population
title_full Evaluating the suitability of close-kin mark-recapture as a demographic modelling tool for a critically endangered elasmobranch population
title_fullStr Evaluating the suitability of close-kin mark-recapture as a demographic modelling tool for a critically endangered elasmobranch population
title_full_unstemmed Evaluating the suitability of close-kin mark-recapture as a demographic modelling tool for a critically endangered elasmobranch population
title_sort evaluating the suitability of close-kin mark-recapture as a demographic modelling tool for a critically endangered elasmobranch population
publisher Wiley
publishDate 2022
url https://doi.org/10.1111/eva.13474
https://napier-repository.worktribe.com/file/2912016/1/Evaluating%20the%20suitability%20of%20close-kin%20mark-recapture%20as%20a%20demographic%20modelling%20tool%20for%20a%20critically%20endangered%20elasmobranch%20population
http://researchrepository.napier.ac.uk/Output/2912016
genre Dipturus batis
genre_facet Dipturus batis
op_relation http://researchrepository.napier.ac.uk/Output/2912016
doi:https://doi.org/10.1111/eva.13474
https://napier-repository.worktribe.com/file/2912016/1/Evaluating%20the%20suitability%20of%20close-kin%20mark-recapture%20as%20a%20demographic%20modelling%20tool%20for%20a%20critically%20endangered%20elasmobranch%20population
1752-4563
10.1111/eva.13474
op_rights openAccess
http://creativecommons.org/licenses/by/4.0/
op_rightsnorm CC-BY
op_doi https://doi.org/10.1111/eva.13474
container_title Evolutionary Applications
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