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...

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Autores principales: Volpedo, A.V., Tombari, A.D., Echeverría, D.D.
Formato: JOUR
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: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 todo:paper_07224060_v31_n5_p635_Volpedo
record_format dspace
spelling todo:paper_07224060_v31_n5_p635_Volpedo2023-10-03T15:37:04Z Eco-morphological patterns of the sagitta of Antarctic fish Volpedo, A.V. Tombari, A.D. Echeverría, D.D. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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, A.V.
Tombari, A.D.
Echeverría, D.D.
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.
format JOUR
author Volpedo, A.V.
Tombari, A.D.
Echeverría, D.D.
author_facet Volpedo, A.V.
Tombari, A.D.
Echeverría, D.D.
author_sort Volpedo, A.V.
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
url http://hdl.handle.net/20.500.12110/paper_07224060_v31_n5_p635_Volpedo
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AT tombariad ecomorphologicalpatternsofthesagittaofantarcticfish
AT echeverriadd ecomorphologicalpatternsofthesagittaofantarcticfish
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