Morphological and histochemical characterization of the pectoral fin muscle of the stripped weakfish, Cynoscion guatucupa

The fibres of superficial and deep abductor muscles of the pectoral fins of the stripped weakfish, Cynoscion guatucupa have been studied using histochemical techniques: succinic dehydrogenase (SDH) for mitochondria, periodic acid-Schiff (PAS) for glycogen, myosin-adenosintriphosphatase (mATPase) to...

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Autores principales: Devincenti, C.V., Longo, M.V., González Castro, M., Díaz, A.O.
Formato: JOUR
Materias:
Cynoscion
guatucupa
Histochemistry
Morphology
Morphometry
Pectoral muscle
bone
histology
morphology
morphometry
muscle
perciform
Cynoscion guatucupa
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00017272_v96_n2_p199_Devincenti
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_00017272_v96_n2_p199_Devincenti2023-10-03T13:51:53Z Morphological and histochemical characterization of the pectoral fin muscle of the stripped weakfish, Cynoscion guatucupa Devincenti, C.V. Longo, M.V. González Castro, M. Díaz, A.O. Cynoscion guatucupa Histochemistry Morphology Morphometry Pectoral muscle bone histology morphology morphometry muscle perciform Cynoscion Cynoscion guatucupa The fibres of superficial and deep abductor muscles of the pectoral fins of the stripped weakfish, Cynoscion guatucupa have been studied using histochemical techniques: succinic dehydrogenase (SDH) for mitochondria, periodic acid-Schiff (PAS) for glycogen, myosin-adenosintriphosphatase (mATPase) to identify different fibre types based on the contraction speed and modified ATPase to identify capillaries. The fibre diameters were measured, and the capillaries of the main fibre types - red, pink and white- were counted. The two muscles showed both macroscopically and microscopically two well-differentiated zones with predominant white fibres. The area of insertion of muscles into the fin rays had red, pink and white fibres. The origin zone of the muscle into the bone was composed by white fibres only. Both zones of white muscle evidenced a mosaic of small, medium and large polygonal white fibres. Red, pink and white muscles showed a wide histochemical diversity of fibre subtypes. The area per peripheral capillary increased from the red to the white muscles. Due to the predominance of white fibres, the pectoral fins of C. guatucupa were mainly involved in rapid movements to stop/discontinue and stabilize the body during swimming. © 2014 The Royal Swedish Academy of Sciences. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00017272_v96_n2_p199_Devincenti
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Cynoscion
guatucupa
Histochemistry
Morphology
Morphometry
Pectoral muscle
bone
histology
morphology
morphometry
muscle
perciform
Cynoscion
Cynoscion guatucupa
spellingShingle Cynoscion
guatucupa
Histochemistry
Morphology
Morphometry
Pectoral muscle
bone
histology
morphology
morphometry
muscle
perciform
Cynoscion
Cynoscion guatucupa
Devincenti, C.V.
Longo, M.V.
González Castro, M.
Díaz, A.O.
Morphological and histochemical characterization of the pectoral fin muscle of the stripped weakfish, Cynoscion guatucupa
topic_facet Cynoscion
guatucupa
Histochemistry
Morphology
Morphometry
Pectoral muscle
bone
histology
morphology
morphometry
muscle
perciform
Cynoscion
Cynoscion guatucupa
description The fibres of superficial and deep abductor muscles of the pectoral fins of the stripped weakfish, Cynoscion guatucupa have been studied using histochemical techniques: succinic dehydrogenase (SDH) for mitochondria, periodic acid-Schiff (PAS) for glycogen, myosin-adenosintriphosphatase (mATPase) to identify different fibre types based on the contraction speed and modified ATPase to identify capillaries. The fibre diameters were measured, and the capillaries of the main fibre types - red, pink and white- were counted. The two muscles showed both macroscopically and microscopically two well-differentiated zones with predominant white fibres. The area of insertion of muscles into the fin rays had red, pink and white fibres. The origin zone of the muscle into the bone was composed by white fibres only. Both zones of white muscle evidenced a mosaic of small, medium and large polygonal white fibres. Red, pink and white muscles showed a wide histochemical diversity of fibre subtypes. The area per peripheral capillary increased from the red to the white muscles. Due to the predominance of white fibres, the pectoral fins of C. guatucupa were mainly involved in rapid movements to stop/discontinue and stabilize the body during swimming. © 2014 The Royal Swedish Academy of Sciences.
format JOUR
author Devincenti, C.V.
Longo, M.V.
González Castro, M.
Díaz, A.O.
author_facet Devincenti, C.V.
Longo, M.V.
González Castro, M.
Díaz, A.O.
author_sort Devincenti, C.V.
title Morphological and histochemical characterization of the pectoral fin muscle of the stripped weakfish, Cynoscion guatucupa
title_short Morphological and histochemical characterization of the pectoral fin muscle of the stripped weakfish, Cynoscion guatucupa
title_full Morphological and histochemical characterization of the pectoral fin muscle of the stripped weakfish, Cynoscion guatucupa
title_fullStr Morphological and histochemical characterization of the pectoral fin muscle of the stripped weakfish, Cynoscion guatucupa
title_full_unstemmed Morphological and histochemical characterization of the pectoral fin muscle of the stripped weakfish, Cynoscion guatucupa
title_sort morphological and histochemical characterization of the pectoral fin muscle of the stripped weakfish, cynoscion guatucupa
url http://hdl.handle.net/20.500.12110/paper_00017272_v96_n2_p199_Devincenti
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AT longomv morphologicalandhistochemicalcharacterizationofthepectoralfinmuscleofthestrippedweakfishcynoscionguatucupa
AT gonzalezcastrom morphologicalandhistochemicalcharacterizationofthepectoralfinmuscleofthestrippedweakfishcynoscionguatucupa
AT diazao morphologicalandhistochemicalcharacterizationofthepectoralfinmuscleofthestrippedweakfishcynoscionguatucupa
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