Repository logo
 
Publication

Prey-switching to fishery discards does not compensate for poor natural foraging conditions in breeding albatross

2022Journal article Open access
Simple item page
dc.contributor.authorKuepfer, Amanda
dc.contributor.authorVotier, Stephen C
dc.contributor.authorSherley, Richard
dc.contributor.authorVentura, Francesco
dc.contributor.authorMatias, Rafael
dc.contributor.authorAnderson, Orea
dc.contributor.authorBrickle, Paul
dc.contributor.authorArkhipkin, Alexander
dc.contributor.authorCatry, Paulo
dc.date.accessioned2023-01-19T17:10:18Z
dc.date.available2023-01-19T17:10:18Z
dc.date.issued2022
dc.description.abstractFishery discards supplement food for many seabirds, but the impacts of declining discards are poorly understood. Discards may be beneficial for some populations but have negative impacts by increasing bycatch risk or because they are junk-food. The Falkland Islands support > 70% of global black-browed albatross Thalassarche melanophris populations, which feed on discards. However, the effect of discards on population demographics, and implications of fishery management changes, are unknown. We analysed stomach contents of black-browed albatross chicks across eight breeding seasons (2004-2020) from New Island, Falkland Islands, to assess variation in discard consumption and how this relates to foraging conditions and breeding success. Across years, 68%-98% of samples contained natural prey, whilst 23%-88% of samples contained fishery discards. Discard consumption was positively related to fishery catches of hoki Macruronus magellanicus and sea surface temperature anomalies SSTA (degrees C), and negatively related to breeding success. These results suggest a diet-switching behaviour for Falkland Islands albatrosses, whereby birds switch from preferred natural prey to suboptimal discards when environmental conditions, and hence natural feeding opportunities, are unfavourable. Crucially, this study highlights that fishery discards do not compensate for poor natural foraging conditions for breeding albatrosses in the long term.pt_PT
dc.description.sponsorshipFundação para a Ciência e Tecnologia - FCTpt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1093/icesjms/fsac069pt_PT
dc.identifier.issn10543139
dc.identifier.urihttp://hdl.handle.net/10400.12/8925
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherOxford University Presspt_PT
dc.relationMarine and Environmental Sciences Centre
dc.relationMarine and Environmental Sciences Centre
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectAlbatrosspt_PT
dc.subjectDiet-switchingpt_PT
dc.subjectEcosystem-based managementpt_PT
dc.subjectFishery discardspt_PT
dc.subjectStomach content analysispt_PT
dc.titlePrey-switching to fishery discards does not compensate for poor natural foraging conditions in breeding albatrosspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleMarine and Environmental Sciences Centre
oaire.awardTitleMarine and Environmental Sciences Centre
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04292%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04292%2F2020/PT
oaire.citation.conferencePlaceUnited Kingdompt_PT
oaire.citation.endPage13pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleICES Journal of Marine Sciencept_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
person.familyNameKuepfer
person.familyNameSherley
person.familyNameMatias
person.familyNameAnderson
person.familyNameBrickle
person.familyNameArkhipkin
person.familyNameCatry
person.givenNameAmanda
person.givenNameRichard
person.givenNameRafael
person.givenNameOrea
person.givenNamePaul
person.givenNameAlexander
person.givenNamePaulo
person.identifier290073
person.identifier462402
person.identifier.ciencia-idEF1A-6A4A-013A
person.identifier.orcid0000-0002-3559-8802
person.identifier.orcid0000-0001-7367-9315
person.identifier.orcid0000-0002-5072-0538
person.identifier.orcid0000-0002-9672-7313
person.identifier.orcid0000-0002-9870-3518
person.identifier.orcid0000-0001-6725-6869
person.identifier.orcid0000-0003-3000-0522
person.identifier.ridD-7507-2012
person.identifier.ridI-5408-2013
person.identifier.scopus-author-id33467793500
person.identifier.scopus-author-id7003725276
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication97c0e0ac-3d2e-4f1c-809a-d6eecd42bb61
relation.isAuthorOfPublication58e49e94-4c8a-43e3-a0bf-bace5a2514ac
relation.isAuthorOfPublicationddf7f640-298a-4b8e-abc2-70497ab2ba35
relation.isAuthorOfPublication2e1b99cc-6cc4-46a6-b47f-ce254f0457b0
relation.isAuthorOfPublicationfb89c130-c53c-410b-8d97-b116a9ba80bc
relation.isAuthorOfPublication1213339e-6f02-44b7-9d62-f2ad51929250
relation.isAuthorOfPublication2cfe93c3-17bb-4d1a-800f-7a34fbd47927
relation.isAuthorOfPublication.latestForDiscovery2cfe93c3-17bb-4d1a-800f-7a34fbd47927
relation.isProjectOfPublication44ac91a1-9377-452e-94d8-d2e5c7cc0cb3
relation.isProjectOfPublication6e9ecd88-acf2-4476-8c10-8b5de6ded14f
relation.isProjectOfPublication.latestForDiscovery6e9ecd88-acf2-4476-8c10-8b5de6ded14f

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
ICES Journal of Marine Science.pdf
Size:
1.95 MB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.61 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

MARE - Artigos em revistas internacionais