Food and Feeding Habit of Garra nasuta of Basistha River, Guwahati, Assam
DOI:
https://doi.org/10.69980/jaz.v47i1.5423Keywords:
Garra nasuta (McClelland, 1838), Relative gut length, Hepato somatic index, food and feeding habitAbstract
Garra nasuta (McClelland, 1838), an ornamental hill stream fish of Assam is an herbivorous fish feeding primarily on algae. The Relative Length of Gut (RLG) of the test species is 7.71- 9.6. RLG values show a slight increase with fish size, this is indicative that larger fish may have a greater digestive capacity. The Hepato somatic index (HSI) indicates the feeding intensity. The average HSI of the test species is 10.89 for all sizes. The positive trend of HSI in Garra nasuta (McClelland, 1838) indicating a high availability of food resources in the habitat. The GR configurations of the test fish species are modified into flat and round plate- like structure provided with short conical teeth for rasping. The contraction and expansion of the opercular chamber helps in the grinding of the food staff into a paste
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