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dc.contributor.author
Tamini, L. L.  
dc.contributor.author
Dellacasa, R. F.  
dc.contributor.author
Chavez, L. N.  
dc.contributor.author
Marinao, Cristian Javier  
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Góngora, María Eva  
dc.contributor.author
Crawford, R.  
dc.contributor.author
Frere, Esteban  
dc.date.available
2024-12-20T14:44:34Z  
dc.date.issued
2023-11  
dc.identifier.citation
Tamini, L. L.; Dellacasa, R. F.; Chavez, L. N.; Marinao, Cristian Javier; Góngora, María Eva; et al.; Bird scaring lines reduce seabird mortality in mid-water and bottom trawlers in Argentina; Oxford University Press; ICES Journal of Marine Science; 80; 9; 11-2023; 2393-2404  
dc.identifier.issn
1054-3139  
dc.identifier.uri
http://hdl.handle.net/11336/250938  
dc.description.abstract
Seabird bycatch in fisheries, and the development of effective mitigation to minimize this, have been subject to increasing research attention over the past three to four decades. Trawl fisheries represent a particular challenge, as bird mortalities (especially highly threatened albatrosses and large petrels, Procellariforms) occur primarily through difficult-to-detect collisions with warp and net monitoring cables. Effectiveness of bird-scaring lines (BSLs) as a mitigation measure can be fleet-specific, and studies relating specifically to reducing collisions with the net monitoring cable are rare. To support improved assessment and mitigation of seabird bycatch in trawl fisheries, we studied the mortality associated with mid-water and bottom factory trawl vessels along the southern tip of the Argentine Patagonian shelf, across 2144 trawls from 2012 to 2019, with three specific objectives: (i) inform improved bycatch management in this (and other) trawl fisheries by analysing differences in seabird collision rates and outcomes between net monitoring and warp cables, as well as the effect of mitigation measures in reducing collisions; (ii) explore the effects of key fishing operation variables on seabird impact outcomes; and (iii) estimate the annual seabird mortality in the study fleet. We tested the efficacy of BSLs as a mitigation measure to reduce seabird mortality, on warps and net monitoring cables. Our results show that seabird mortality increases in the presence of a net monitoring cable. Our estimation of fishery-wide mortality without the use of BSLs includes 108 [31–186] Southern royal albatross (Diomedea epomophora) and 279 [108–465] Black-browed albatross (Thalassarche melanophris) killed annually by the collisions with the net monitoring cable. We demonstrate the efficacy of BSLs in reducing the number of collisions and in combination with no discarding of fishes, seabird interactions fell to c. zero. Our study builds the case for better bycatch data collection in trawl fisheries, the strong influence of discarding, and the feasibility of simple mitigation measures to reduce seabird bycatch, including on the net monitoring cable.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Oxford University Press  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
bycatch  
dc.subject
colisions  
dc.subject
Patagonian shelf  
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seabird conservation  
dc.subject.classification
Conservación de la Biodiversidad  
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Ciencias Biológicas  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
Bird scaring lines reduce seabird mortality in mid-water and bottom trawlers in Argentina  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2024-12-04T09:35:09Z  
dc.identifier.eissn
1095-9289  
dc.journal.volume
80  
dc.journal.number
9  
dc.journal.pagination
2393-2404  
dc.journal.pais
Reino Unido  
dc.description.fil
Fil: Tamini, L. L.. No especifíca;  
dc.description.fil
Fil: Dellacasa, R. F.. No especifíca;  
dc.description.fil
Fil: Chavez, L. N.. No especifíca;  
dc.description.fil
Fil: Marinao, Cristian Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Centro para el Estudio de Sistemas Marinos; Argentina  
dc.description.fil
Fil: Góngora, María Eva. Universidad Nacional de la Patagonia "San Juan Bosco". Facultad de Ciencias Naturales - Sede Trelew. Departamento de Biología. Laboratorio de Hidrobiología; Argentina  
dc.description.fil
Fil: Crawford, R.. Royal Society; Reino Unido  
dc.description.fil
Fil: Frere, Esteban. Universidad Nacional de la Patagonia Austral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina  
dc.journal.title
ICES Journal of Marine Science  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/icesjms/advance-article/doi/10.1093/icesjms/fsad109/7223059  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1093/icesjms/fsad109