Size related changes in sagitta otoliths of Australoheros facetus (Pisces; Cichlidae) from South America

Autores
Gonzalez Naya, Maria Jimena Aida; Tombari, Andrea Diana; Volpedo, Alejandra; Gomez, Sergio Enrique
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Australoheros facetus, locally known as 'chanchita', is the southernmost (38 o44′S) distributed cichlid species in South America where it is eurytopic and abundant in the pampasic 'laguna', and an important dietary component of numerous piscivorous fishes and birds. The objective of the present study was to extend and correct the description of sagitta otoliths of Australoheros facetus and evaluate the occurrence of morphological and morphometric changes at different development stages. The sagittae were described morphologically and the morphometric analyses performed using the regression equation of allometric growth and discriminant analysis. The results of this analysis indicate that the sagitta of A. facetus acquires its definitive shape at 60mm maturity, laboratory standard length (LS), which is near the lower limit of the size range achieved in laboratory conditions. The main difference compared to individuals below 60mm LS can be seen in the general shape, type of dorsal and ventral rims, type of cauda ending, and presence of a groove at the posterior end. The presented results on ontogenetic changes in otolith morphology can be used in studies of trophic ecology to avoid overestimating the number of prey species found in the diet of freshwater piscivorous fishes and birds. © 2012 Blackwell Verlag, Berlin.
Fil: Gonzalez Naya, Maria Jimena Aida. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Veterinarias. Centro de Estudios Transdisciplinarios del Agua; Argentina
Fil: Tombari, Andrea Diana. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina
Fil: Volpedo, Alejandra. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Veterinarias. Centro de Estudios Transdisciplinarios del Agua; Argentina
Fil: Gomez, Sergio Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina
Materia
Morphology Change
Morphometric Change
Ontogenetic
Freshwater Fishes
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/67896
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Size related changes in sagitta otoliths of Australoheros facetus (Pisces; Cichlidae) from South AmericaGonzalez Naya, Maria Jimena AidaTombari, Andrea DianaVolpedo, AlejandraGomez, Sergio EnriqueMorphology ChangeMorphometric ChangeOntogeneticFreshwater Fisheshttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The Australoheros facetus, locally known as 'chanchita', is the southernmost (38 o44′S) distributed cichlid species in South America where it is eurytopic and abundant in the pampasic 'laguna', and an important dietary component of numerous piscivorous fishes and birds. The objective of the present study was to extend and correct the description of sagitta otoliths of Australoheros facetus and evaluate the occurrence of morphological and morphometric changes at different development stages. The sagittae were described morphologically and the morphometric analyses performed using the regression equation of allometric growth and discriminant analysis. The results of this analysis indicate that the sagitta of A. facetus acquires its definitive shape at 60mm maturity, laboratory standard length (LS), which is near the lower limit of the size range achieved in laboratory conditions. The main difference compared to individuals below 60mm LS can be seen in the general shape, type of dorsal and ventral rims, type of cauda ending, and presence of a groove at the posterior end. The presented results on ontogenetic changes in otolith morphology can be used in studies of trophic ecology to avoid overestimating the number of prey species found in the diet of freshwater piscivorous fishes and birds. © 2012 Blackwell Verlag, Berlin.Fil: Gonzalez Naya, Maria Jimena Aida. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Veterinarias. Centro de Estudios Transdisciplinarios del Agua; ArgentinaFil: Tombari, Andrea Diana. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; ArgentinaFil: Volpedo, Alejandra. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Veterinarias. Centro de Estudios Transdisciplinarios del Agua; ArgentinaFil: Gomez, Sergio Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; ArgentinaWiley Blackwell Publishing, Inc2012-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/67896Gonzalez Naya, Maria Jimena Aida; Tombari, Andrea Diana; Volpedo, Alejandra; Gomez, Sergio Enrique; Size related changes in sagitta otoliths of Australoheros facetus (Pisces; Cichlidae) from South America; Wiley Blackwell Publishing, Inc; Journal of Applied Ichthyology - Zeitschrift für Angewandte Ichthyologie; 28; 5; 10-2012; 752-7550175-8659CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1111/j.1439-0426.2012.02006.xinfo:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1439-0426.2012.02006.xinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:23:36Zoai:ri.conicet.gov.ar:11336/67896instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 14:23:36.469CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Size related changes in sagitta otoliths of Australoheros facetus (Pisces; Cichlidae) from South America
title Size related changes in sagitta otoliths of Australoheros facetus (Pisces; Cichlidae) from South America
spellingShingle Size related changes in sagitta otoliths of Australoheros facetus (Pisces; Cichlidae) from South America
Gonzalez Naya, Maria Jimena Aida
Morphology Change
Morphometric Change
Ontogenetic
Freshwater Fishes
title_short Size related changes in sagitta otoliths of Australoheros facetus (Pisces; Cichlidae) from South America
title_full Size related changes in sagitta otoliths of Australoheros facetus (Pisces; Cichlidae) from South America
title_fullStr Size related changes in sagitta otoliths of Australoheros facetus (Pisces; Cichlidae) from South America
title_full_unstemmed Size related changes in sagitta otoliths of Australoheros facetus (Pisces; Cichlidae) from South America
title_sort Size related changes in sagitta otoliths of Australoheros facetus (Pisces; Cichlidae) from South America
dc.creator.none.fl_str_mv Gonzalez Naya, Maria Jimena Aida
Tombari, Andrea Diana
Volpedo, Alejandra
Gomez, Sergio Enrique
author Gonzalez Naya, Maria Jimena Aida
author_facet Gonzalez Naya, Maria Jimena Aida
Tombari, Andrea Diana
Volpedo, Alejandra
Gomez, Sergio Enrique
author_role author
author2 Tombari, Andrea Diana
Volpedo, Alejandra
Gomez, Sergio Enrique
author2_role author
author
author
dc.subject.none.fl_str_mv Morphology Change
Morphometric Change
Ontogenetic
Freshwater Fishes
topic Morphology Change
Morphometric Change
Ontogenetic
Freshwater Fishes
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The Australoheros facetus, locally known as 'chanchita', is the southernmost (38 o44′S) distributed cichlid species in South America where it is eurytopic and abundant in the pampasic 'laguna', and an important dietary component of numerous piscivorous fishes and birds. The objective of the present study was to extend and correct the description of sagitta otoliths of Australoheros facetus and evaluate the occurrence of morphological and morphometric changes at different development stages. The sagittae were described morphologically and the morphometric analyses performed using the regression equation of allometric growth and discriminant analysis. The results of this analysis indicate that the sagitta of A. facetus acquires its definitive shape at 60mm maturity, laboratory standard length (LS), which is near the lower limit of the size range achieved in laboratory conditions. The main difference compared to individuals below 60mm LS can be seen in the general shape, type of dorsal and ventral rims, type of cauda ending, and presence of a groove at the posterior end. The presented results on ontogenetic changes in otolith morphology can be used in studies of trophic ecology to avoid overestimating the number of prey species found in the diet of freshwater piscivorous fishes and birds. © 2012 Blackwell Verlag, Berlin.
Fil: Gonzalez Naya, Maria Jimena Aida. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Veterinarias. Centro de Estudios Transdisciplinarios del Agua; Argentina
Fil: Tombari, Andrea Diana. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina
Fil: Volpedo, Alejandra. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Veterinarias. Centro de Estudios Transdisciplinarios del Agua; Argentina
Fil: Gomez, Sergio Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina
description The Australoheros facetus, locally known as 'chanchita', is the southernmost (38 o44′S) distributed cichlid species in South America where it is eurytopic and abundant in the pampasic 'laguna', and an important dietary component of numerous piscivorous fishes and birds. The objective of the present study was to extend and correct the description of sagitta otoliths of Australoheros facetus and evaluate the occurrence of morphological and morphometric changes at different development stages. The sagittae were described morphologically and the morphometric analyses performed using the regression equation of allometric growth and discriminant analysis. The results of this analysis indicate that the sagitta of A. facetus acquires its definitive shape at 60mm maturity, laboratory standard length (LS), which is near the lower limit of the size range achieved in laboratory conditions. The main difference compared to individuals below 60mm LS can be seen in the general shape, type of dorsal and ventral rims, type of cauda ending, and presence of a groove at the posterior end. The presented results on ontogenetic changes in otolith morphology can be used in studies of trophic ecology to avoid overestimating the number of prey species found in the diet of freshwater piscivorous fishes and birds. © 2012 Blackwell Verlag, Berlin.
publishDate 2012
dc.date.none.fl_str_mv 2012-10
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/67896
Gonzalez Naya, Maria Jimena Aida; Tombari, Andrea Diana; Volpedo, Alejandra; Gomez, Sergio Enrique; Size related changes in sagitta otoliths of Australoheros facetus (Pisces; Cichlidae) from South America; Wiley Blackwell Publishing, Inc; Journal of Applied Ichthyology - Zeitschrift für Angewandte Ichthyologie; 28; 5; 10-2012; 752-755
0175-8659
CONICET Digital
CONICET
url http://hdl.handle.net/11336/67896
identifier_str_mv Gonzalez Naya, Maria Jimena Aida; Tombari, Andrea Diana; Volpedo, Alejandra; Gomez, Sergio Enrique; Size related changes in sagitta otoliths of Australoheros facetus (Pisces; Cichlidae) from South America; Wiley Blackwell Publishing, Inc; Journal of Applied Ichthyology - Zeitschrift für Angewandte Ichthyologie; 28; 5; 10-2012; 752-755
0175-8659
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1439-0426.2012.02006.x
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1439-0426.2012.02006.x
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.22299

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