Morphological and histochemical characterization of the pectoral fin muscle of the stripped weakfish,Cynoscion guatucupa
| Autor: | Mariano González Castro, María Victoria Longo, C. V. Devincenti, Alcira Ofelia Díaz |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Cynoscion guatucupa
GUATUCUPA PECTORAL MUSCLE Otras Ciencias Biológicas Pectoral muscle Fish fin Cell Biology Anatomy Biology biology.organism_classification Ciencias Biológicas CYNOSCION MORPHOMETRY MORPHOLOGY HISTOCHEMISTRY Animal Science and Zoology CIENCIAS NATURALES Y EXACTAS Ecology Evolution Behavior and Systematics Cynoscion |
| Zdroj: | Acta Zoologica. 96:199-208 |
| ISSN: | 0001-7272 |
| DOI: | 10.1111/azo.12067 |
| Popis: | 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. Fil: Devincenti, Clelia Viviana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencia Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina Fil: Longo, María Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencia Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina Fil: González Castro, Mariano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencia Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina Fil: Díaz, Alcira Ofelia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencia Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text