Morphology of gill rakers and locomotory muscles of Otolith ruber.

J. Mansour, Akeel

	Morphology of gill rakers and locomotory muscles of Otolith ruber.
Mesopotamian Journal of Marine Science
Article 1, Volume 23, Issue 2, 2008, Pages 399-417 PDF (0 K)
Author
Akeel J. Mansour
Abstract
The present study deals with some biological the gill rakers morphology, number, structure and filtration capacity of gill rakers of one species of marine Teleosts i.e. Otolith ruber (Schneider, 1801) and study of proportion of the red and white muscle fibers and distributed in body regions in O. ruber. Gills of Otolith ruber have low number of gill rakers ranged (7-24.62) in length groups (140-260 mm), and the gills have different filtration capacity, It’s ranged (35.65-146.36 mm2) in length groups (140-260 mm). The length and number of gill rakers were affected on the filtration capacity of gills. The related results of locomotive activity showed the muscular tissue have two main types of muscles (Red and White Muscle fibers). These muscles differ in the location and proportion of muscle fibers, in the location of studied body regions (R1 and R2). The proportions of red muscle fibers were less than the white muscle fibers in (R1 and R2). The red muscle fibers are ranged (5.23-14.87 %) but white muscle fibers are ranged (84.21-94.52 %) in length groups (140-260 mm).the result showed increase of proportion of red muscle fibers in the posterior region (Caudal peduncle) and the values obtained in this study on this type of fishes. It’s can be put these types of fishes which belong to intermediate activity.

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