A study of the peripheral innervation and muscle fibre types of Ictalurus nebulosus (Lesueur) and Ictalurus punctatus (Rafinesque)

Autor:	D. S. Raso
Rok vydání:	1991
Předmět:	medicine.medical_specialty Succinic dehydrogenase Anatomy Aquatic Science Biology biology.organism_classification Staining Endocrinology Ictalurus Internal medicine medicine Fish Muscle fibre Ecology Evolution Behavior and Systematics Catfish
Zdroj:	Journal of Fish Biology. 39:409-419
ISSN:	1095-8649 0022-1112
DOI:	10.1111/j.1095-8649.1991.tb04372.x
Popis:	The innervation pattern and fibre types of the axial musculature of two closely related catfish species with differing lifestyles, Ictalurus nebulosus (Lesueur) and I. punctatus (Rafinesque) were investigated. Both fish displayed the multiple innervation pattern in the red muscle. However, the white muscle of I. nebulosus demonstrated terminal innervation while I. puncrurus displayed multiply innervated white muscle fibres. Fibre typing utilizing histochemical techniques for glyco-gen, lipid, succinic dehydrogenase and glucose-6-phosphate dehydrogenase revealed the typical teleostean distribution of red, intermediate and white muscle fibres in both fish. Staining was greatest in the red muscle fibres and least in the white muscle fibres. The white muscle fibres of I. punctatus stained slightly more for lipid than the white fibres of I. nebulosus which may be correlated with a greater aerobic capacity related to lifestyle and possibly innervation.
Databáze:	OpenAIRE
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