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Deep stocks avoid competition migrating horizontal and vertically: The example of two scabbardfishes (Aphanopus spp.) targeted by long-liners in grounds next to an oceanic archipelago

2019Journal article Open access
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dc.contributor.authorVasconcelos, Joana
dc.contributor.authorHenriques, Paulo
dc.contributor.authorSousa, Ricardo
dc.contributor.authorAmorim, Antonieta
dc.contributor.authorDelgado, João
dc.contributor.authorRiera, Rodrigo
dc.date.accessioned2022-07-06T14:04:21Z
dc.date.available2022-07-06T14:04:21Z
dc.date.issued2019
dc.description.abstractFishing is occurring all over the globe, with an increase trend of exploiting deep stocks. Several species are currently targeted from the deep ocean, and some artisanal fisheries developed fishing gears, e.g. long lines, with limited impact to the environment but scarce information is available on biological aspects of these exploited stocks. In the Macaronesian region and specifically in Madeira archipelago, two Aphanopus sympatric species have been extensively exploited for decades but no detailed information is available on the spatial and vertical distribution of both species (Aphanopus carbo and Aphanopus intermedius). Currently, they represent an important percentage of landings from artisanal fishermen of Madeira (27% of the total catches in 2017). We herein observed that they showed a pattern of depth segregation, where adults of both species are more abundant (ca. 80%) at deeper seafloor (> 2500 m). A. intermedius was more numerous in fishing areas with greater seafloor depth (> 4500 m) compared to A. carbo. This pattern may be explained by a food source overlap between both species, and also the vertical segregation within the same species may be considered as a pattern to avoid cannibalism. Also, migration patterns were found in both species being more pronounced for A. intermedius where > 86% of individuals were collected offshore (> 12 n.m.). The present results constitute a step forward to start developing integrative management actions to preserve stocks of both species in the medium and long term in the study region.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationVasconcelos, J., Henriques, P., Sousa, R., Amorim, A., Delgado, J., & Riera, R. (2019). Deep stocks avoid competition migrating horizontal and vertically: The example of two scabbardfishes (Aphanopus spp.) targeted by long-liners in grounds next to an oceanic archipelago. Regional Studies in Marine Science, 28, 100605.pt_PT
dc.identifier.doi10.1016/j.rsma.2019.100605pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.13/4372
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationIntegrative Approach to develop bioindicators of overfishing symptoms in fully-exploited species in areas with differente protection and management regimes
dc.relationMARE - Marine and Environmental Sciences Centre
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectDeep sea stockpt_PT
dc.subjectHorizontal and vertical migrationpt_PT
dc.subjectAphanopuspt_PT
dc.subjectDeep-water fisheriespt_PT
dc.subjectNortheastern atlanticpt_PT
dc.subjectMadeira (Portugal)pt_PT
dc.subject.pt_PT
dc.subjectFaculdade de Ciências da Vidapt_PT
dc.titleDeep stocks avoid competition migrating horizontal and vertically: The example of two scabbardfishes (Aphanopus spp.) targeted by long-liners in grounds next to an oceanic archipelagopt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleIntegrative Approach to develop bioindicators of overfishing symptoms in fully-exploited species in areas with differente protection and management regimes
oaire.awardTitleMARE - Marine and Environmental Sciences Centre
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBSAB%2F143056%2F2018/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FMAR%2F04292%2F2019/PT
oaire.citation.startPage100605pt_PT
oaire.citation.titleRegional Studies in Marine Sciencept_PT
oaire.citation.volume28pt_PT
oaire.fundingStream6817 - DCRRNI ID
person.familyNameVasconcelos
person.familyNameHenriques
person.familyNameSousa
person.familyNameDelgado
person.familyNameRIERA
person.givenNameJoana
person.givenNamePaulo
person.givenNameRicardo
person.givenNameJoão
person.givenNameRODRIGO
person.identifier934239
person.identifier131658
person.identifier.ciencia-idEE13-2152-BBFC
person.identifier.ciencia-id7B18-5677-6571
person.identifier.ciencia-idCC16-7DB1-47E7
person.identifier.orcid0000-0003-3880-2554
person.identifier.orcid0000-0001-5061-2732
person.identifier.orcid0000-0002-5416-6570
person.identifier.orcid0000-0003-4268-7202
person.identifier.orcid0000-0003-1264-1625
person.identifier.ridI-4260-2013
person.identifier.scopus-author-id55619972800
person.identifier.scopus-author-id7003416980
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
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