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dc.contributor.author
Scarabotti, Pablo Augusto  
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Parma, Maria Julieta E.  
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Lopez, Javier Alejandro  
dc.contributor.author
Ghirardi, Romina  
dc.date.available
2020-04-22T22:32:15Z  
dc.date.issued
2009-12  
dc.identifier.citation
Scarabotti, Pablo Augusto; Parma, Maria Julieta E.; Lopez, Javier Alejandro; Ghirardi, Romina; Dermal lip protuberances associated with aquatic surface respiration in juveniles of the piscivorous characid Salminus brasiliensis (Actinopterygii: Characidae); Sociedade Brasileira de Ictiología; Neotropical Ichthyology; 7; 3; 12-2009; 459-464  
dc.identifier.issn
1679-6225  
dc.identifier.uri
http://hdl.handle.net/11336/103394  
dc.description.abstract
Some South American freshwater fishes can improve their capability of aquatic surface respiration (ASR) by developing dermal lip protuberances in the lower jaw. This adaptation was thought to be limited to omnivorous or herbivorous fishes. The present work provides the first evidence that juveniles of a piscivorous characid, Salminus brasiliensis, develop dermal lip protuberances during periods of hypoxia in floodplain ponds of the Salado River, in Argentina. The protuberance of S. brasiliensis involves dermal portions of both jaws exhibiting lateral lobes on the sides of the mouth arranged in the vertical plane. Water dissolved oxygen concentrations less than or equal to 1.05 mgl-1 were associated with a remarkable increase in lip protuberance. The lateral lobes of the protuberance in this species may limit the access of water to the anterior portion of the mouth which is positioned nearer to the oxygenated surface water during ASR. Finally, ASR, complemented with the development of dermal lip protuberances, can be considered a valuable strategy to survive in hypoxic environments, even for carnivorous fishes with elevated oxygen requirements  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Sociedade Brasileira de Ictiología  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Hypoxia  
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Morphological adaptation  
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Lip extension  
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Floodplain pond  
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Argentina  
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Ecología  
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Ciencias Biológicas  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
Dermal lip protuberances associated with aquatic surface respiration in juveniles of the piscivorous characid Salminus brasiliensis (Actinopterygii: Characidae)  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2020-04-21T15:21:24Z  
dc.journal.volume
7  
dc.journal.number
3  
dc.journal.pagination
459-464  
dc.journal.pais
Brasil  
dc.journal.ciudad
Porto Alegre  
dc.description.fil
Fil: Scarabotti, Pablo Augusto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; Argentina  
dc.description.fil
Fil: Parma, Maria Julieta E.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; Argentina  
dc.description.fil
Fil: Lopez, Javier Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; Argentina  
dc.description.fil
Fil: Ghirardi, Romina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; Argentina  
dc.journal.title
Neotropical Ichthyology