Publicação
Metapopulation distribution shapes year‐round overlap with fisheries for a circumpolar seabird
| Resumo: | Although fisheries bycatch is the greatest threat to many migratory marine megafauna, it remains unclear how population exposure to bycatch varies across the global range of threatened species. Such assessments across multiple populations are crucial for understanding variation in impacts and for identifying the management bodies responsible for reducing bycatch. Here, we combine extensive biologging data from white‐chinned petrel (<jats:italic>Procellaria aequinoctialis</jats:italic>) populations (representing >98% of their global breeding population) with pelagic and demersal longline and trawl fishing effort to map the global distribution and fisheries‐overlap hotspots for the most bycaught seabird in the Southern Hemisphere. We tracked the year‐round movements of 132 adults in 2006–2018 and examined spatial overlap among seven populations comprising three genetically distinct groupings (metapopulations). Foraging areas during the nonbreeding season were more concentrated than during breeding, with birds from all populations migrating to continental shelf or upwelling zones, but with low spatial overlap among metapopulations. Fisheries overlap differed more among than within metapopulations, underlining that these should be considered separate management units. Overlap with pelagic longline fisheries was greatest for Indian Ocean populations, and from the fleets of South Africa, Japan, Taiwan, and Spain, off southern Africa and in the High Seas. Overlap with demersal longline and trawl fisheries was greatest for Indian and Atlantic Ocean populations, within the Exclusive Economic Zones of South Africa, Namibia, and Argentina, and with the South Korean demersal longline fleet in the High Seas. The high overlap with South Korean longliners in the southwest Atlantic Ocean is of particular concern as demersal fishing in this region is not covered by any Regional Fisheries Management Organization (RFMO). We also identified fisheries‐overlap hotspots within RFMOs where there are no seabird‐bycatch mitigation requirements (1.5%–53.1% of total overlap within the area of competence of each RFMO), or where current mitigation regulations need to be strengthened. Our recommendations are that management bodies target the high‐priority fisheries we have identified for improved bycatch monitoring, mandatory best‐practice bycatch mitigation, and close monitoring of compliance, given the conservation concerns for white‐chinned petrels and other threatened seabirds. Biologging, Bycatch mitigatio, Geolocator, Longline fisheries, Migratory connectivity, Regional Fisheries Management Organization, Trawl fisheries, White-chinned petrel |
|---|---|
| Autores principais: | Rexer‐Huber, Kalinka |
| Outros Autores: | Clay, Thomas A.; Catry, Paulo; Debski, Igor; Parker, Graham; Ramos, Raül; Robertson, Bruce C.; Ryan, Peter G.; Sagar, Paul M.; Stanworth, Andrew; Thompson, David R.; Tuck, Geoffrey N.; Weimerskirch, Henri; Phillips, Richard A. |
| Assunto: | Biologging Bycatch mitigatio Geolocator Longline fisheries Migratory connectivity Regional Fisheries Management Organization Trawl fisheries White-chinned petrel |
| Ano: | 2025 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Ispa-Instituto Universitário |
| Idioma: | inglês |
| Origem: | Repositório do Ispa - Instituto Universitário |
| _version_ | 1866252633047564288 |
|---|---|
| author | Rexer‐Huber, Kalinka |
| author2 | Clay, Thomas A. Catry, Paulo Debski, Igor Parker, Graham Ramos, Raül Robertson, Bruce C. Ryan, Peter G. Sagar, Paul M. Stanworth, Andrew Thompson, David R. Tuck, Geoffrey N. Weimerskirch, Henri Phillips, Richard A. |
| author2_role | author author author author author author author author author author author author author |
| author_facet | Rexer‐Huber, Kalinka Clay, Thomas A. Catry, Paulo Debski, Igor Parker, Graham Ramos, Raül Robertson, Bruce C. Ryan, Peter G. Sagar, Paul M. Stanworth, Andrew Thompson, David R. Tuck, Geoffrey N. Weimerskirch, Henri Phillips, Richard A. |
| author_role | author |
| contributor_name_str_mv | Repositório do ISPA |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Rexer‐Huber, Kalinka\"},{\"Person.name\":\"Clay, Thomas A.\"},{\"Person.name\":\"Catry, Paulo\"},{\"Person.name\":\"Debski, Igor\"},{\"Person.name\":\"Parker, Graham\"},{\"Person.name\":\"Ramos, Raül\"},{\"Person.name\":\"Robertson, Bruce C.\"},{\"Person.name\":\"Ryan, Peter G.\"},{\"Person.name\":\"Sagar, Paul M.\"},{\"Person.name\":\"Stanworth, Andrew\"},{\"Person.name\":\"Thompson, David R.\"},{\"Person.name\":\"Tuck, Geoffrey N.\"},{\"Person.name\":\"Weimerskirch, Henri\"},{\"Person.name\":\"Phillips, Richard A.\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | Repositório do ISPA |
| datacite.creators.creator.creatorName.fl_str_mv | Rexer‐Huber, Kalinka Clay, Thomas A. Catry, Paulo Debski, Igor Parker, Graham Ramos, Raül Robertson, Bruce C. Ryan, Peter G. Sagar, Paul M. Stanworth, Andrew Thompson, David R. Tuck, Geoffrey N. Weimerskirch, Henri Phillips, Richard A. |
| datacite.date.Accepted.fl_str_mv | 2025-04-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2025-05-12T15:18:45Z |
| datacite.date.embargoed.fl_str_mv | 2025-05-12T15:18:45Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | Biologging Bycatch mitigatio Geolocator Longline fisheries Migratory connectivity Regional Fisheries Management Organization Trawl fisheries White-chinned petrel |
| datacite.titles.title.fl_str_mv | Metapopulation distribution shapes year‐round overlap with fisheries for a circumpolar seabird |
| dc.contributor.none.fl_str_mv | Repositório do ISPA |
| dc.creator.none.fl_str_mv | Rexer‐Huber, Kalinka Clay, Thomas A. Catry, Paulo Debski, Igor Parker, Graham Ramos, Raül Robertson, Bruce C. Ryan, Peter G. Sagar, Paul M. Stanworth, Andrew Thompson, David R. Tuck, Geoffrey N. Weimerskirch, Henri Phillips, Richard A. |
| dc.date.Accepted.fl_str_mv | 2025-04-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2025-05-12T15:18:45Z |
| dc.date.embargoed.fl_str_mv | 2025-05-12T15:18:45Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/10400.12/13520 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | Wiley |
| dc.rights.cclincense.fl_str_mv | http://creativecommons.org/licenses/by/4.0/ |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.subject.none.fl_str_mv | Biologging Bycatch mitigatio Geolocator Longline fisheries Migratory connectivity Regional Fisheries Management Organization Trawl fisheries White-chinned petrel |
| dc.title.fl_str_mv | Metapopulation distribution shapes year‐round overlap with fisheries for a circumpolar seabird |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | Although fisheries bycatch is the greatest threat to many migratory marine megafauna, it remains unclear how population exposure to bycatch varies across the global range of threatened species. Such assessments across multiple populations are crucial for understanding variation in impacts and for identifying the management bodies responsible for reducing bycatch. Here, we combine extensive biologging data from white‐chinned petrel (<jats:italic>Procellaria aequinoctialis</jats:italic>) populations (representing >98% of their global breeding population) with pelagic and demersal longline and trawl fishing effort to map the global distribution and fisheries‐overlap hotspots for the most bycaught seabird in the Southern Hemisphere. We tracked the year‐round movements of 132 adults in 2006–2018 and examined spatial overlap among seven populations comprising three genetically distinct groupings (metapopulations). Foraging areas during the nonbreeding season were more concentrated than during breeding, with birds from all populations migrating to continental shelf or upwelling zones, but with low spatial overlap among metapopulations. Fisheries overlap differed more among than within metapopulations, underlining that these should be considered separate management units. Overlap with pelagic longline fisheries was greatest for Indian Ocean populations, and from the fleets of South Africa, Japan, Taiwan, and Spain, off southern Africa and in the High Seas. Overlap with demersal longline and trawl fisheries was greatest for Indian and Atlantic Ocean populations, within the Exclusive Economic Zones of South Africa, Namibia, and Argentina, and with the South Korean demersal longline fleet in the High Seas. The high overlap with South Korean longliners in the southwest Atlantic Ocean is of particular concern as demersal fishing in this region is not covered by any Regional Fisheries Management Organization (RFMO). We also identified fisheries‐overlap hotspots within RFMOs where there are no seabird‐bycatch mitigation requirements (1.5%–53.1% of total overlap within the area of competence of each RFMO), or where current mitigation regulations need to be strengthened. Our recommendations are that management bodies target the high‐priority fisheries we have identified for improved bycatch monitoring, mandatory best‐practice bycatch mitigation, and close monitoring of compliance, given the conservation concerns for white‐chinned petrels and other threatened seabirds. Biologging, Bycatch mitigatio, Geolocator, Longline fisheries, Migratory connectivity, Regional Fisheries Management Organization, Trawl fisheries, White-chinned petrel |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | article |
| fulltext.url.fl_str_mv | https://repositorio.ispa.pt/bitstreams/31165457-2144-4e58-9768-ef21fefef8af/download |
| id | ispa_f119f824914ce05d19bc56c9507c8f5d |
| identifier.url.fl_str_mv | http://hdl.handle.net/10400.12/13520 |
| instacron_str | ispa |
| institution | Ispa-Instituto Universitário |
| instname_str | Ispa-Instituto Universitário |
| language | eng |
| network_acronym_str | ispa |
| network_name_str | Repositório do Ispa - Instituto Universitário |
| oai_identifier_str | oai:repositorio.ispa.pt:10400.12/13520 |
| organization_str_mv | urn:organizationAcronym:ispa |
| person_str_mv | Rexer‐Huber, Kalinka Clay, Thomas A. Catry, Paulo Debski, Igor Parker, Graham Ramos, Raül Robertson, Bruce C. Ryan, Peter G. Sagar, Paul M. Stanworth, Andrew Thompson, David R. Tuck, Geoffrey N. Weimerskirch, Henri Phillips, Richard A. |
| publishDate | 2025 |
| publisher.none.fl_str_mv | Wiley |
| reponame_str | Repositório do Ispa - Instituto Universitário |
| repository_id_str | urn:repositoryAcronym:ispa |
| service_str_mv | urn:repositoryAcronym:ispa |
| spelling | engWileyengAlthough fisheries bycatch is the greatest threat to many migratory marine megafauna, it remains unclear how population exposure to bycatch varies across the global range of threatened species. Such assessments across multiple populations are crucial for understanding variation in impacts and for identifying the management bodies responsible for reducing bycatch. Here, we combine extensive biologging data from white‐chinned petrel (<jats:italic>Procellaria aequinoctialis</jats:italic>) populations (representing >98% of their global breeding population) with pelagic and demersal longline and trawl fishing effort to map the global distribution and fisheries‐overlap hotspots for the most bycaught seabird in the Southern Hemisphere. We tracked the year‐round movements of 132 adults in 2006–2018 and examined spatial overlap among seven populations comprising three genetically distinct groupings (metapopulations). Foraging areas during the nonbreeding season were more concentrated than during breeding, with birds from all populations migrating to continental shelf or upwelling zones, but with low spatial overlap among metapopulations. Fisheries overlap differed more among than within metapopulations, underlining that these should be considered separate management units. Overlap with pelagic longline fisheries was greatest for Indian Ocean populations, and from the fleets of South Africa, Japan, Taiwan, and Spain, off southern Africa and in the High Seas. Overlap with demersal longline and trawl fisheries was greatest for Indian and Atlantic Ocean populations, within the Exclusive Economic Zones of South Africa, Namibia, and Argentina, and with the South Korean demersal longline fleet in the High Seas. The high overlap with South Korean longliners in the southwest Atlantic Ocean is of particular concern as demersal fishing in this region is not covered by any Regional Fisheries Management Organization (RFMO). We also identified fisheries‐overlap hotspots within RFMOs where there are no seabird‐bycatch mitigation requirements (1.5%–53.1% of total overlap within the area of competence of each RFMO), or where current mitigation regulations need to be strengthened. Our recommendations are that management bodies target the high‐priority fisheries we have identified for improved bycatch monitoring, mandatory best‐practice bycatch mitigation, and close monitoring of compliance, given the conservation concerns for white‐chinned petrels and other threatened seabirds. Biologging, Bycatch mitigatio, Geolocator, Longline fisheries, Migratory connectivity, Regional Fisheries Management Organization, Trawl fisheries, White-chinned petrelapplication/pdfengMetapopulation distribution shapes year‐round overlap with fisheries for a circumpolar seabirdRexer‐Huber, KalinkaClay, Thomas A.Catry, PauloDebski, IgorParker, GrahamRamos, RaülRobertson, Bruce C.Ryan, Peter G.Sagar, Paul M.Stanworth, AndrewThompson, David R.Tuck, Geoffrey N.Weimerskirch, HenriPhillips, Richard A.HostingInstitutionOrganizationalRepositório do ISPAe-mailmailto:repositorio@ispa.ptrepositorio@ispa.ptISSNIsPartOf1051-0761ISSNIsPartOf1939-5582DOIIsPartOf10.1002/eap.700192025-05-12T15:18:45Z2025-042025-04-01T00:00:00ZHandlehttp://hdl.handle.net/10400.12/13520http://purl.org/coar/access_right/c_abf2open accessBiologgingBycatch mitigatioGeolocatorLongline fisheriesMigratory connectivityRegional Fisheries Management OrganizationTrawl fisheriesWhite-chinned petrel6376121 bytesliteraturehttp://purl.org/coar/resource_type/c_6501journal article2025-04http://creativecommons.org/licenses/by/4.0/http://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://repositorio.ispa.pt/bitstreams/31165457-2144-4e58-9768-ef21fefef8af/downloadEcological applications : A publication of the Ecological Society of America353119 |
| spellingShingle | Metapopulation distribution shapes year‐round overlap with fisheries for a circumpolar seabird Rexer‐Huber, Kalinka Biologging Bycatch mitigatio Geolocator Longline fisheries Migratory connectivity Regional Fisheries Management Organization Trawl fisheries White-chinned petrel |
| status | SINGLETON |
| subject.fl_str_mv | Biologging Bycatch mitigatio Geolocator Longline fisheries Migratory connectivity Regional Fisheries Management Organization Trawl fisheries White-chinned petrel |
| title | Metapopulation distribution shapes year‐round overlap with fisheries for a circumpolar seabird |
| title_full | Metapopulation distribution shapes year‐round overlap with fisheries for a circumpolar seabird |
| title_fullStr | Metapopulation distribution shapes year‐round overlap with fisheries for a circumpolar seabird |
| title_full_unstemmed | Metapopulation distribution shapes year‐round overlap with fisheries for a circumpolar seabird |
| title_short | Metapopulation distribution shapes year‐round overlap with fisheries for a circumpolar seabird |
| title_sort | Metapopulation distribution shapes year‐round overlap with fisheries for a circumpolar seabird |
| topic | Biologging Bycatch mitigatio Geolocator Longline fisheries Migratory connectivity Regional Fisheries Management Organization Trawl fisheries White-chinned petrel |
| topic_facet | Biologging Bycatch mitigatio Geolocator Longline fisheries Migratory connectivity Regional Fisheries Management Organization Trawl fisheries White-chinned petrel |
| url | http://hdl.handle.net/10400.12/13520 |
| visible | 1 |