Development of the sagitta in young and adults of Odontesthes argentinensis (Valenciennes, 1835) and Odontesthes bonariensis (Valenciennes, 1835) from Buenos Aires province, Argentina (Teleostei: Atneriniformes)

The development of the otolith sagitta was described in young and adults of two silverside species. Odontesthes argentinensis was collected from Punta Rasa (36°22' S) and Miramar (38°16' S) and, Odontesthes bonariensis collected from Laguna de Chascomús (35°36' S). Sagitta morphology...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Tombari, A.D., Volpedo, A.V., Echeverría, D.D.
Formato: JOUR
Materias:
Atherinopsidae
Morphology
Odontesthes
Sagitta
Argentina elongata
Odontesthes argentinensis
Odontesthes bonariensis
Teleostei
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_0716078X_v78_n4_p31_Tombari
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_0716078X_v78_n4_p31_Tombari
record_format dspace
spelling todo:paper_0716078X_v78_n4_p31_Tombari2023-10-03T15:36:13Z Development of the sagitta in young and adults of Odontesthes argentinensis (Valenciennes, 1835) and Odontesthes bonariensis (Valenciennes, 1835) from Buenos Aires province, Argentina (Teleostei: Atneriniformes) Tombari, A.D. Volpedo, A.V. Echeverría, D.D. Atherinopsidae Morphology Odontesthes Sagitta Argentina elongata Atherinopsidae Odontesthes Odontesthes argentinensis Odontesthes bonariensis Sagitta Teleostei The development of the otolith sagitta was described in young and adults of two silverside species. Odontesthes argentinensis was collected from Punta Rasa (36°22' S) and Miramar (38°16' S) and, Odontesthes bonariensis collected from Laguna de Chascomús (35°36' S). Sagitta morphology was studied in both species, analyzing four morphological groups of O. argentinensis (I: 75-120 mm, II: 130-220 mm, III: 230-270 mm and IV: 280-320 mm) and three morphological groups of O. bonariensis (I: 80-120 mm, II: 130-220 mm and III: 230-320 mm). The morphological features of the sagitta shared by both species are: sulcus present, dorsal areal depression on the medial face, lateral face with striations and the presence of the culminant point on the dorsal margin. The dorsal areal depression of O. argentinensis begins in contact with the cauda. This feature easily identifies the sagittae of young in both species. The dorsal areal depression is separated from the cauda in adults of both species, and the statistical analysis showed a discontinuous growth. Morphological differences were found between pairs of sagittae of the same specimen relating to the shape of the ostium, presence of an anterior excisure, rostrum and the culminant point, but no significant morphometric difference was found. Fil:Tombari, A.D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Volpedo, A.V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Echeverría, D.D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_0716078X_v78_n4_p31_Tombari
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Atherinopsidae
Morphology
Odontesthes
Sagitta
Argentina elongata
Atherinopsidae
Odontesthes
Odontesthes argentinensis
Odontesthes bonariensis
Sagitta
Teleostei
spellingShingle Atherinopsidae
Morphology
Odontesthes
Sagitta
Argentina elongata
Atherinopsidae
Odontesthes
Odontesthes argentinensis
Odontesthes bonariensis
Sagitta
Teleostei
Tombari, A.D.
Volpedo, A.V.
Echeverría, D.D.
Development of the sagitta in young and adults of Odontesthes argentinensis (Valenciennes, 1835) and Odontesthes bonariensis (Valenciennes, 1835) from Buenos Aires province, Argentina (Teleostei: Atneriniformes)
topic_facet Atherinopsidae
Morphology
Odontesthes
Sagitta
Argentina elongata
Atherinopsidae
Odontesthes
Odontesthes argentinensis
Odontesthes bonariensis
Sagitta
Teleostei
description The development of the otolith sagitta was described in young and adults of two silverside species. Odontesthes argentinensis was collected from Punta Rasa (36°22' S) and Miramar (38°16' S) and, Odontesthes bonariensis collected from Laguna de Chascomús (35°36' S). Sagitta morphology was studied in both species, analyzing four morphological groups of O. argentinensis (I: 75-120 mm, II: 130-220 mm, III: 230-270 mm and IV: 280-320 mm) and three morphological groups of O. bonariensis (I: 80-120 mm, II: 130-220 mm and III: 230-320 mm). The morphological features of the sagitta shared by both species are: sulcus present, dorsal areal depression on the medial face, lateral face with striations and the presence of the culminant point on the dorsal margin. The dorsal areal depression of O. argentinensis begins in contact with the cauda. This feature easily identifies the sagittae of young in both species. The dorsal areal depression is separated from the cauda in adults of both species, and the statistical analysis showed a discontinuous growth. Morphological differences were found between pairs of sagittae of the same specimen relating to the shape of the ostium, presence of an anterior excisure, rostrum and the culminant point, but no significant morphometric difference was found.
format JOUR
author Tombari, A.D.
Volpedo, A.V.
Echeverría, D.D.
author_facet Tombari, A.D.
Volpedo, A.V.
Echeverría, D.D.
author_sort Tombari, A.D.
title Development of the sagitta in young and adults of Odontesthes argentinensis (Valenciennes, 1835) and Odontesthes bonariensis (Valenciennes, 1835) from Buenos Aires province, Argentina (Teleostei: Atneriniformes)
title_short Development of the sagitta in young and adults of Odontesthes argentinensis (Valenciennes, 1835) and Odontesthes bonariensis (Valenciennes, 1835) from Buenos Aires province, Argentina (Teleostei: Atneriniformes)
title_full Development of the sagitta in young and adults of Odontesthes argentinensis (Valenciennes, 1835) and Odontesthes bonariensis (Valenciennes, 1835) from Buenos Aires province, Argentina (Teleostei: Atneriniformes)
title_fullStr Development of the sagitta in young and adults of Odontesthes argentinensis (Valenciennes, 1835) and Odontesthes bonariensis (Valenciennes, 1835) from Buenos Aires province, Argentina (Teleostei: Atneriniformes)
title_full_unstemmed Development of the sagitta in young and adults of Odontesthes argentinensis (Valenciennes, 1835) and Odontesthes bonariensis (Valenciennes, 1835) from Buenos Aires province, Argentina (Teleostei: Atneriniformes)
title_sort development of the sagitta in young and adults of odontesthes argentinensis (valenciennes, 1835) and odontesthes bonariensis (valenciennes, 1835) from buenos aires province, argentina (teleostei: atneriniformes)
url http://hdl.handle.net/20.500.12110/paper_0716078X_v78_n4_p31_Tombari
work_keys_str_mv AT tombariad developmentofthesagittainyoungandadultsofodontesthesargentinensisvalenciennes1835andodontesthesbonariensisvalenciennes1835frombuenosairesprovinceargentinateleosteiatneriniformes
AT volpedoav developmentofthesagittainyoungandadultsofodontesthesargentinensisvalenciennes1835andodontesthesbonariensisvalenciennes1835frombuenosairesprovinceargentinateleosteiatneriniformes
AT echeverriadd developmentofthesagittainyoungandadultsofodontesthesargentinensisvalenciennes1835andodontesthesbonariensisvalenciennes1835frombuenosairesprovinceargentinateleosteiatneriniformes
_version_ 1807322229223981056

Ejemplares similares