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dc.contributor.author
Funes, Manuela

dc.contributor.author
Marinao, Cristian Javier

dc.contributor.author
Galvan, David Edgardo

dc.date.available
2020-07-24T19:26:38Z
dc.date.issued
2019-06
dc.identifier.citation
Funes, Manuela; Marinao, Cristian Javier; Galvan, David Edgardo; Does trawl fisheries affect the diet of fishes? A stable isotope analysis approach; Taylor & Francis Ltd; Isotopes In Environmental And Health Studies; 55; 4; 6-2019; 327-343
dc.identifier.issn
1025-6016
dc.identifier.uri
http://hdl.handle.net/11336/110231
dc.description.abstract
Trawling is the main fishing practice worldwide and its ecosystem effects have been raising concern over the past decades. Long-term impacts can be monitored through changes in the trophic structure, and several studies evaluated trophic level (TL) shifts in fish populations between trawled and untrawled environments. However, published results are contrasting. We performed a metanalysis integrating all available studies that evaluated TL shifts in fishes between trawled and untrawled environments and conducted a local study comparing several features of the trophic ecology in two species of fishes. According to the metanalysis, TL does not change significantly with trawling. In contrast, the local study showed higher TLs and broader isotopic niches in the trawled environment. Diet reconstruction indicated a potential consumption of hake, the main discard component, at the trawled environment. All the studies used in the metanalysis were conducted in the Northern Hemisphere, whereas the local study represents the first data available from the Southern Hemisphere. As industrial commercial fisheries in Argentina are relatively recent, it is possible that our data are capturing the initial stage of ecological changes induced by trawling, compared with the historical fisheries located at the Northern Hemisphere.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Taylor & Francis Ltd

dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
BYCATCH CONSUMPTION
dc.subject
CARBON-13
dc.subject
FISHERIES IMPACT
dc.subject
ISOTOPE ECOLOGY
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METANALYSIS
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NITROGEN-15
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REEF FISH
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PATAGONIA
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TROPHIC POSITION
dc.subject.classification
Biología Marina, Limnología

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Ciencias Biológicas

dc.subject.classification
CIENCIAS NATURALES Y EXACTAS

dc.title
Does trawl fisheries affect the diet of fishes? A stable isotope analysis approach
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-06-22T14:20:28Z
dc.identifier.eissn
1477-2639
dc.journal.volume
55
dc.journal.number
4
dc.journal.pagination
327-343
dc.journal.pais
Reino Unido

dc.journal.ciudad
Londres
dc.description.fil
Fil: Funes, Manuela. 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: 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: Galvan, David Edgardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Centro para el Estudio de Sistemas Marinos; Argentina
dc.journal.title
Isotopes In Environmental And Health Studies

dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1080/10256016.2019.1626381
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/full/10.1080/10256016.2019.1626381
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