Eco-morphological patterns of the sagitta of Antarctic fish

Morphology and morphometry of the sagittae otolith were studied in pelagic and mesopelagic fish. The shape, margins and rostrum of four groups of otoliths from several species were analyzed: group 1 (pelagic fish associated with the under ice cover N = 42), group 2 (pelagic fish associated with wate...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Volpedo, Alejandra, Tombari, Andrea Diana, Echeverría, Dinorah Diana
Publicado:	2008
Materias:	Antarctic fish Ecomorphology Morphometry Otolith body shape body size comparative study ecomorphology ice cover mesopelagic zone morphometry otolith pelagic fish statistical analysis vertical migration Sagitta
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07224060_v31_n5_p635_Volpedo http://hdl.handle.net/20.500.12110/paper_07224060_v31_n5_p635_Volpedo
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_07224060_v31_n5_p635_Volpedo
record_format	dspace
spelling	paper:paper_07224060_v31_n5_p635_Volpedo2023-06-08T15:43:34Z Eco-morphological patterns of the sagitta of Antarctic fish Volpedo, Alejandra Tombari, Andrea Diana Echeverría, Dinorah Diana Antarctic fish Ecomorphology Morphometry Otolith body shape body size comparative study ecomorphology ice cover mesopelagic zone morphometry otolith pelagic fish statistical analysis vertical migration Sagitta Morphology and morphometry of the sagittae otolith were studied in pelagic and mesopelagic fish. The shape, margins and rostrum of four groups of otoliths from several species were analyzed: group 1 (pelagic fish associated with the under ice cover N = 42), group 2 (pelagic fish associated with water offshore N = 9), group 3 (mesopelagic fish associated with extensive vertical migration N = 57) and group 4 (mesopelagic fish associated with short vertical migration N = 54). E (maximum width of the sagitta /maximum length of the sagitta %), R (rostrum length (RL)/maximum length of the sagitta %) and S (sulcus area (SS)/otolith area (OS) %) indexes were calculated for each species. Sagittae of pelagic groups (1 and 2) showed the smallest sagitta dimensions in relation to the total length of the fish, in this group the sagitta shape is variable. Sagittae of mesopelagic fish (groups 3 and 4) showed variable shape and edges. The shape in group 4 was polygonal and these species have more width than length. Statistical analysis showed significant differences in the E, R and S indexes. These results were compared with other 19 species, belonging to six families, taken from a publisher-edited literature. E, R and S-values could be used to characterize the sagittae of the Antarctic fish and could be considered as a useful tool for fish ecology studies. © 2008 Springer-Verlag. Fil:Volpedo, A.V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Tombari, A.D. 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. 2008 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07224060_v31_n5_p635_Volpedo http://hdl.handle.net/20.500.12110/paper_07224060_v31_n5_p635_Volpedo
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Antarctic fish Ecomorphology Morphometry Otolith body shape body size comparative study ecomorphology ice cover mesopelagic zone morphometry otolith pelagic fish statistical analysis vertical migration Sagitta
spellingShingle	Antarctic fish Ecomorphology Morphometry Otolith body shape body size comparative study ecomorphology ice cover mesopelagic zone morphometry otolith pelagic fish statistical analysis vertical migration Sagitta Volpedo, Alejandra Tombari, Andrea Diana Echeverría, Dinorah Diana Eco-morphological patterns of the sagitta of Antarctic fish
topic_facet	Antarctic fish Ecomorphology Morphometry Otolith body shape body size comparative study ecomorphology ice cover mesopelagic zone morphometry otolith pelagic fish statistical analysis vertical migration Sagitta
description	Morphology and morphometry of the sagittae otolith were studied in pelagic and mesopelagic fish. The shape, margins and rostrum of four groups of otoliths from several species were analyzed: group 1 (pelagic fish associated with the under ice cover N = 42), group 2 (pelagic fish associated with water offshore N = 9), group 3 (mesopelagic fish associated with extensive vertical migration N = 57) and group 4 (mesopelagic fish associated with short vertical migration N = 54). E (maximum width of the sagitta /maximum length of the sagitta %), R (rostrum length (RL)/maximum length of the sagitta %) and S (sulcus area (SS)/otolith area (OS) %) indexes were calculated for each species. Sagittae of pelagic groups (1 and 2) showed the smallest sagitta dimensions in relation to the total length of the fish, in this group the sagitta shape is variable. Sagittae of mesopelagic fish (groups 3 and 4) showed variable shape and edges. The shape in group 4 was polygonal and these species have more width than length. Statistical analysis showed significant differences in the E, R and S indexes. These results were compared with other 19 species, belonging to six families, taken from a publisher-edited literature. E, R and S-values could be used to characterize the sagittae of the Antarctic fish and could be considered as a useful tool for fish ecology studies. © 2008 Springer-Verlag.
author	Volpedo, Alejandra Tombari, Andrea Diana Echeverría, Dinorah Diana
author_facet	Volpedo, Alejandra Tombari, Andrea Diana Echeverría, Dinorah Diana
author_sort	Volpedo, Alejandra
title	Eco-morphological patterns of the sagitta of Antarctic fish
title_short	Eco-morphological patterns of the sagitta of Antarctic fish
title_full	Eco-morphological patterns of the sagitta of Antarctic fish
title_fullStr	Eco-morphological patterns of the sagitta of Antarctic fish
title_full_unstemmed	Eco-morphological patterns of the sagitta of Antarctic fish
title_sort	eco-morphological patterns of the sagitta of antarctic fish
publishDate	2008
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07224060_v31_n5_p635_Volpedo http://hdl.handle.net/20.500.12110/paper_07224060_v31_n5_p635_Volpedo
work_keys_str_mv	AT volpedoalejandra ecomorphologicalpatternsofthesagittaofantarcticfish AT tombariandreadiana ecomorphologicalpatternsofthesagittaofantarcticfish AT echeverriadinorahdiana ecomorphologicalpatternsofthesagittaofantarcticfish
_version_	1768546545056088064

Eco-morphological patterns of the sagitta of Antarctic fish

Ejemplares similares