Studies on comparative morphology and anatomy of certain body tissues of three freshwater teleosts

Author(s): Sanatan Singh*, P. K. Dixit, A. K. Patra

Abstract

The present study was carried out to determine the morphological and anatomical characters of three freshwater air-breathing fishes Clarias Batrachus, Channa Punctatus, Anabas testudineus and to characterize the length, weight of alimentary tract and reproductive aspects like condition factor (k), Gastrosomatic Index(GSI), Gonadosomatic Index (GnSI), Hepatosomatic Index (HSI), Relative length of Intestine and Somatogastric Index. The result obtained indicated adverse effects on the gonads as well as on liver weight. The remarkable factor of Gastrosomatic Index (GSI) of three different fishes were significantly decreased as compared to their increase in body weight. The average Gastrosomatic Index (GSI), Gonadosomatic Index (GnSI), Hepatosomatic Index (HSI) and condition factor (k) of C. Batrachus, C. Punctatus and A. testudinas were (4.42, 4.60, 4.62), (3.74, 3.59, 1.48), (4.10, 3.41, 3.46), (0.91, 1.63, 2,88) were reported respectively. The weight length relationship, Gastrosomatic Index, Gonadosomatic Index, Hepatosomatic Index and Condition factor were found to be differed in three freshwater fishes analyzed. The relative length of Intestine and somatogastric Index value were found to be inconsistent in all the fishes studied.

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