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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/67896
Ver los metadatos del registro completo
id |
CONICETDig_ee533aa36a9d875b1ff9d4fca5d1c482 |
---|---|
oai_identifier_str |
oai:ri.conicet.gov.ar:11336/67896 |
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 Técnicas2025-09-29T09:35:10Zoai: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:34982025-09-29 09:35:10.318CONICET 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 |
_version_ |
1844613093520310272 |
score |
13.070432 |