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dc.contributor.author
Rios, Maria Florencia
dc.contributor.author
Venerus, Leonardo Ariel
dc.contributor.author
Karachle, Paraskevi K.
dc.contributor.author
Reid, William D. K.
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Erzini, Karim
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Stergiou, Konstantinos I.
dc.contributor.author
Galvan, David Edgardo
dc.date.available
2020-04-01T21:04:10Z
dc.date.issued
2019-03
dc.identifier.citation
Rios, Maria Florencia; Venerus, Leonardo Ariel; Karachle, Paraskevi K.; Reid, William D. K.; Erzini, Karim; et al.; Linking size-based trophodynamics and morphological traits in marine fishes; Wiley Blackwell Publishing, Inc; Fish And Fisheries; 20; 2; 3-2019; 355-367
dc.identifier.issn
1467-2960
dc.identifier.uri
http://hdl.handle.net/11336/101584
dc.description.abstract
The rule of thumb in marine trophodynamics indicates that the bigger an organism, the higher its trophic level (TROPH). This generalization leads to the assumption that fishes increase their TROPH with growth. However, a recent review showed that for many species, TROPH does not increase with body size, suggesting that size-independent feeding is not rare in marine fishes. Here, we assessed some morphological traits of marine fishes that could potentially be used as indicators for the ability to vary TROPH with body size. Stable isotope values of nitrogen were used as a proxy TROPH. The specific objectives were as follows: (a) to evaluate the relationship between the oral gape and the trophodynamic trend and (b) to quantify the relevance of 11 external morphological traits in determining the size-based trophodynamics. We used random forest models to identify the morphological traits that would help predict which species would have the potential to increase TROPH with growth and which would have not. The selected traits included the pelvic fin relative position, the dorsal fin shape, total length, and relative mouth size. Our results also showed a marked relationship between the rate of increase in the oral gape and TROPH. The analyses presented here provide the first comprehensive and quantitative review aiming at linking the trophodynamics of marine fishes with external morphological traits.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
MARINE BONY FISHES
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MARINE FOOD WEBS
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MORPHOLOGICAL TRAITS
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ORAL GAPE
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RANDOM FOREST
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STABLE ISOTOPES
dc.subject.classification
Biología Marina, Limnología
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Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Linking size-based trophodynamics and morphological traits in marine fishes
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-03-30T14:38:27Z
dc.journal.volume
20
dc.journal.number
2
dc.journal.pagination
355-367
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Hoboken
dc.description.fil
Fil: Rios, Maria Florencia. Universidad Nacional de la Patagonia. Facultad de Ciencias Naturales. Sede Puerto Madryn; Argentina. 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: Venerus, Leonardo Ariel. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina. 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: Karachle, Paraskevi K.. Hellenic Centre for Marine Research. Institute of Marine Biological Resources and Inland Waters; Grecia
dc.description.fil
Fil: Reid, William D. K.. University of Newcastle; Reino Unido
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Fil: Erzini, Karim. Universidad de Algarve; Portugal
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Fil: Stergiou, Konstantinos I.. Aristotle University of Thessaloniki. Department of Zoology. School of Biology; Grecia
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
Fish And Fisheries
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1111/faf.12347
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/faf.12347
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