Fisheries bycatch as an inadvertent human-induced evolutionary mechanism.
Selective harvesting of animals by humans can affect the sustainability and genetics of their wild populations. Bycatch - the accidental catch of non-target species - spans the spectrum of marine fauna and constitutes a harvesting pressure. Individual differences in attraction to fishing vessels and...
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ftdoajarticles:oai:doaj.org/article:7f556c78ae904d9f8924dc78bb24ad23 2023-05-15T18:43:02+02:00 Fisheries bycatch as an inadvertent human-induced evolutionary mechanism. Christophe Barbraud Geoffrey N Tuck Robin Thomson Karine Delord Henri Weimerskirch 2013-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0060353 https://doaj.org/article/7f556c78ae904d9f8924dc78bb24ad23 EN eng Public Library of Science (PLoS) http://europepmc.org/articles/PMC3622665?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0060353 https://doaj.org/article/7f556c78ae904d9f8924dc78bb24ad23 PLoS ONE, Vol 8, Iss 4, p e60353 (2013) Medicine R Science Q article 2013 ftdoajarticles https://doi.org/10.1371/journal.pone.0060353 2022-12-31T14:19:57Z Selective harvesting of animals by humans can affect the sustainability and genetics of their wild populations. Bycatch - the accidental catch of non-target species - spans the spectrum of marine fauna and constitutes a harvesting pressure. Individual differences in attraction to fishing vessels and consequent susceptibility to bycatch exist, but few studies integrate this individual heterogeneity with demography. Here, we tested for the evidence and consequences of individual heterogeneity on the demography of the wandering albatross, a seabird heavily affected by fisheries bycatch. We found strong evidence for heterogeneity in survival with one group of individuals having a 5.2% lower annual survival probability than another group, and a decrease in the proportion of those individuals with the lowest survival in the population coinciding with a 7.5 fold increase in fishing effort in the foraging areas. Potential causes for the heterogeneity in survival are discussed and we suggest that bycatch removed a large proportion of individuals attracted by fishing vessels and had significant phenotypic and population consequences. Article in Journal/Newspaper Wandering Albatross Directory of Open Access Journals: DOAJ Articles PLoS ONE 8 4 e60353 |
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Directory of Open Access Journals: DOAJ Articles |
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English |
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Medicine R Science Q |
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Medicine R Science Q Christophe Barbraud Geoffrey N Tuck Robin Thomson Karine Delord Henri Weimerskirch Fisheries bycatch as an inadvertent human-induced evolutionary mechanism. |
topic_facet |
Medicine R Science Q |
description |
Selective harvesting of animals by humans can affect the sustainability and genetics of their wild populations. Bycatch - the accidental catch of non-target species - spans the spectrum of marine fauna and constitutes a harvesting pressure. Individual differences in attraction to fishing vessels and consequent susceptibility to bycatch exist, but few studies integrate this individual heterogeneity with demography. Here, we tested for the evidence and consequences of individual heterogeneity on the demography of the wandering albatross, a seabird heavily affected by fisheries bycatch. We found strong evidence for heterogeneity in survival with one group of individuals having a 5.2% lower annual survival probability than another group, and a decrease in the proportion of those individuals with the lowest survival in the population coinciding with a 7.5 fold increase in fishing effort in the foraging areas. Potential causes for the heterogeneity in survival are discussed and we suggest that bycatch removed a large proportion of individuals attracted by fishing vessels and had significant phenotypic and population consequences. |
format |
Article in Journal/Newspaper |
author |
Christophe Barbraud Geoffrey N Tuck Robin Thomson Karine Delord Henri Weimerskirch |
author_facet |
Christophe Barbraud Geoffrey N Tuck Robin Thomson Karine Delord Henri Weimerskirch |
author_sort |
Christophe Barbraud |
title |
Fisheries bycatch as an inadvertent human-induced evolutionary mechanism. |
title_short |
Fisheries bycatch as an inadvertent human-induced evolutionary mechanism. |
title_full |
Fisheries bycatch as an inadvertent human-induced evolutionary mechanism. |
title_fullStr |
Fisheries bycatch as an inadvertent human-induced evolutionary mechanism. |
title_full_unstemmed |
Fisheries bycatch as an inadvertent human-induced evolutionary mechanism. |
title_sort |
fisheries bycatch as an inadvertent human-induced evolutionary mechanism. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2013 |
url |
https://doi.org/10.1371/journal.pone.0060353 https://doaj.org/article/7f556c78ae904d9f8924dc78bb24ad23 |
genre |
Wandering Albatross |
genre_facet |
Wandering Albatross |
op_source |
PLoS ONE, Vol 8, Iss 4, p e60353 (2013) |
op_relation |
http://europepmc.org/articles/PMC3622665?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0060353 https://doaj.org/article/7f556c78ae904d9f8924dc78bb24ad23 |
op_doi |
https://doi.org/10.1371/journal.pone.0060353 |
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PLoS ONE |
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8 |
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4 |
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e60353 |
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1766232829027418112 |