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dc.contributor.author
Barbini, Santiago Aldo
dc.contributor.author
Lucifora, Luis Omar
dc.contributor.author
Hozbor, Natalia M.
dc.date.available
2018-04-23T21:30:43Z
dc.date.issued
2011-04
dc.identifier.citation
Barbini, Santiago Aldo; Lucifora, Luis Omar; Hozbor, Natalia M.; Feeding habits and habitat selectivity of the shortnose guitarfish, Zapteryx brevirostris (Chondrichthyes, Rhinobatidae), off north Argentina and Uruguay; Taylor & Francis As; Marine Biology Research; 7; 4; 4-2011; 365-377
dc.identifier.issn
1745-1019
dc.identifier.uri
http://hdl.handle.net/11336/43172
dc.description.abstract
Dietary shifts with predator’s size, maturity stage and season and bottom type selection of Zapteryx brevirostris were evaluated, using generalized linear models. In terms of index of relative importance, the most important prey were amphipods (39.17%), polychaetes (22.33%) and lancelets (20.33%), followed by decapods (8.93%), cumaceans (5.41%) and isopods (3.41%). Z. brevirostris consumed mainly polychaetes and amphipods in spring and summer, ate more cumaceans in winter, consumed more lancelets in spring, and preyed more heavily on decapods and isopods in summer. As Z. brevirostris increased in size, the consumption of decapods, polychaetes and isopods was higher, but the consumption of amphipods decreased. Mature individuals of Z. brevirostris consumed more lancelets than juveniles. Z. brevirostris selected sand over other bottom types. The diet of Z. brevirostris can be influenced by the selectivity of this species for sandy bottoms. As sandy bottoms are exposed to a high intensity of bottom trawling, the positive selection of sandy bottoms increases the vulnerability of Z. brevirostris by exposing it to fishing mortality.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Taylor & Francis As
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Habitat Selectivity
dc.subject
Ontogenetic Diet Shift
dc.subject
Rhinobatidae
dc.subject
Southwest Atlantic
dc.subject.classification
Otras Ciencias Biológicas
dc.subject.classification
Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Feeding habits and habitat selectivity of the shortnose guitarfish, Zapteryx brevirostris (Chondrichthyes, Rhinobatidae), off north Argentina and Uruguay
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-04-18T15:17:58Z
dc.identifier.eissn
1745-1000
dc.journal.volume
7
dc.journal.number
4
dc.journal.pagination
365-377
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
Fil: Barbini, Santiago Aldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencia Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina
dc.description.fil
Fil: Lucifora, Luis Omar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Posadas | Universidad Nacional de Misiones. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Posadas; Argentina. Administracion de Parques Nacionales. Parque Nacional "iguazu". Centro de Investigaciones Ecologicas Subtropicales; Argentina
dc.description.fil
Fil: Hozbor, Natalia M.. Instituto Nacional de Investigación y Desarrollo pesquero; Argentina
dc.journal.title
Marine Biology Research
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1080/17451000.2010.515229
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1080/17451000.2010.515229


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