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dc.contributor.author
Volpedo, Alejandra
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dc.contributor.author
Echeverría, Dinorah Diana
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dc.date.available
2021-07-28T15:41:56Z
dc.date.issued
2003-02
dc.identifier.citation
Volpedo, Alejandra; Echeverría, Dinorah Diana; Ecomorphological patterns of the sagitta in fish on the continental shelf off Argentine; Elsevier Science; Fisheries Research; 60; 2-3; 2-2003; 551-560
dc.identifier.issn
0165-7836
dc.identifier.uri
http://hdl.handle.net/11336/137208
dc.description.abstract
Morphology and morphometry of the sagittae otolith were studied in fish associated with different substrates. The shape, margins and rostrum of three groups of otoliths from several species were analyzed: group 1 (fish associated with soft substrates, N = 10 species), group 2 (fish associated with hard substrates, N = 10 species) and group 3 (pelagic fish, not associated with the bottom, N = 6 species). E and R indexes were calculated for each species. The value of E = maximum width of the sagitta (WO)/maximum length of the sagitta (LO)%, expresses the relative tendency in the shape otolith (from circular to elongate). The value of R = length of the rostrum (LR)/LO%, expresses the percentage in the total length of the otolith that corresponds to the rostrum. The sagittae of group 1 were circular or polygonal with rounded borders. The rostrum can be absent or poorly developed. The sagittae shape of group 2 was elongated, with ornamented borders and a rostrum. The sagittae of group 3 possessed a prominent rostrum, a deep V-shaped cisure and ornamented borders. Statistical analysis showed no significant differences in the E index of groups 1 and 2, while R values of the three groups were significantly different. These results were compared with 80 other species, belonging to 12 families, from the publisher literature. E and R values could be used to characterize the sagittae of the marine fish and could be considered a useful tool for fish ecology studies.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ECOMORPHOLOGY
dc.subject
ECOTYPES
dc.subject
MORPHOMETRY
dc.subject
OTOLITH
dc.subject.classification
Otros Tópicos Biológicos
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Ecomorphological patterns of the sagitta in fish on the continental shelf off Argentine
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-07-26T17:15:28Z
dc.journal.volume
60
dc.journal.number
2-3
dc.journal.pagination
551-560
dc.journal.pais
Países Bajos
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dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Volpedo, Alejandra. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental. Laboratorio de Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Echeverría, Dinorah Diana. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental. Laboratorio de Vertebrados; Argentina
dc.journal.title
Fisheries Research
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/S0165-7836(02)00170-4
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0165783602001704
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