Larval development of Argentine hake Merluccius hubbsi

The ontogeny of the developmental stages of the hake Merluccius hubbsi is described. Fish larvae and post-transitional juveniles were collected in the Nor-Patagonian area from 1989 to 2004. The opening of the mouth and the pigmentation of the eyes are coincident with yolk resorption, finishing the y...

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Detalles Bibliográficos
Autores principales:	Betti, P., Machinandiarena, L., Ehrlich, M.D.
Formato:	JOUR
Materias:	Meristics Merluccius Morphometrics animal Argentina article fin (organ) Gadiformes growth, development and aging histology larva pigmentation prenatal development Animal Fins Animals Larva Pigmentation Merluccius hubbsi Rexea solandri
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_00221112_v74_n1_p235_Betti
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_00221112_v74_n1_p235_Betti
record_format	dspace
spelling	todo:paper_00221112_v74_n1_p235_Betti2023-10-03T14:26:27Z Larval development of Argentine hake Merluccius hubbsi Betti, P. Machinandiarena, L. Ehrlich, M.D. Meristics Merluccius Morphometrics animal Argentina article fin (organ) Gadiformes growth, development and aging histology larva pigmentation prenatal development Animal Fins Animals Argentina Gadiformes Larva Pigmentation Gadiformes Merluccius Merluccius hubbsi Rexea solandri The ontogeny of the developmental stages of the hake Merluccius hubbsi is described. Fish larvae and post-transitional juveniles were collected in the Nor-Patagonian area from 1989 to 2004. The opening of the mouth and the pigmentation of the eyes are coincident with yolk resorption, finishing the yolk-sac stage. This species presents pigmentation on the head, trunk and tail typical of gadiform larvae. Pectoral fin development is completed during the transformation stage. The post-transitional juvenile stage begins when the fin-ray complements are complete and squamation begins. The fins become fully formed in the following sequence: pelvic fins, first dorsal fin, second dorsal and anal fins together, caudal fin and pectoral fins. The caudal complex is totally developed in larvae of 22.0-23.0 mm standard lengths (LS) and all vertebral elements are first observed in larvae of 8.5 mm LS. The rate of development of M. hubbsi observed in this study could be faster than the rates reported for other species of Merluccius by different authors. © 2009 The Authors. Fil:Betti, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Ehrlich, M.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_00221112_v74_n1_p235_Betti
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Meristics Merluccius Morphometrics animal Argentina article fin (organ) Gadiformes growth, development and aging histology larva pigmentation prenatal development Animal Fins Animals Argentina Gadiformes Larva Pigmentation Gadiformes Merluccius Merluccius hubbsi Rexea solandri
spellingShingle	Meristics Merluccius Morphometrics animal Argentina article fin (organ) Gadiformes growth, development and aging histology larva pigmentation prenatal development Animal Fins Animals Argentina Gadiformes Larva Pigmentation Gadiformes Merluccius Merluccius hubbsi Rexea solandri Betti, P. Machinandiarena, L. Ehrlich, M.D. Larval development of Argentine hake Merluccius hubbsi
topic_facet	Meristics Merluccius Morphometrics animal Argentina article fin (organ) Gadiformes growth, development and aging histology larva pigmentation prenatal development Animal Fins Animals Argentina Gadiformes Larva Pigmentation Gadiformes Merluccius Merluccius hubbsi Rexea solandri
description	The ontogeny of the developmental stages of the hake Merluccius hubbsi is described. Fish larvae and post-transitional juveniles were collected in the Nor-Patagonian area from 1989 to 2004. The opening of the mouth and the pigmentation of the eyes are coincident with yolk resorption, finishing the yolk-sac stage. This species presents pigmentation on the head, trunk and tail typical of gadiform larvae. Pectoral fin development is completed during the transformation stage. The post-transitional juvenile stage begins when the fin-ray complements are complete and squamation begins. The fins become fully formed in the following sequence: pelvic fins, first dorsal fin, second dorsal and anal fins together, caudal fin and pectoral fins. The caudal complex is totally developed in larvae of 22.0-23.0 mm standard lengths (LS) and all vertebral elements are first observed in larvae of 8.5 mm LS. The rate of development of M. hubbsi observed in this study could be faster than the rates reported for other species of Merluccius by different authors. © 2009 The Authors.
format	JOUR
author	Betti, P. Machinandiarena, L. Ehrlich, M.D.
author_facet	Betti, P. Machinandiarena, L. Ehrlich, M.D.
author_sort	Betti, P.
title	Larval development of Argentine hake Merluccius hubbsi
title_short	Larval development of Argentine hake Merluccius hubbsi
title_full	Larval development of Argentine hake Merluccius hubbsi
title_fullStr	Larval development of Argentine hake Merluccius hubbsi
title_full_unstemmed	Larval development of Argentine hake Merluccius hubbsi
title_sort	larval development of argentine hake merluccius hubbsi
url	http://hdl.handle.net/20.500.12110/paper_00221112_v74_n1_p235_Betti
work_keys_str_mv	AT bettip larvaldevelopmentofargentinehakemerlucciushubbsi AT machinandiarenal larvaldevelopmentofargentinehakemerlucciushubbsi AT ehrlichmd larvaldevelopmentofargentinehakemerlucciushubbsi
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Larval development of Argentine hake Merluccius hubbsi

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