Age and growth rate determination from pectoral and dorsal fin region scales of a hillstream teleost Barilius bendelisis (Ham.) with a note on difference in their structure


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Authors

  • V S Rawat Department of Zoology, HNB Garhwal University, Sringar (Garhwal), India
  • Prakash Nautiyal Department of Zoology, HNB Garhwal University, Sringar (Garhwal), India

Abstract

The scales from dorsal (DFR) and pectoral fin regions (PFR) of Barilius bendelisis were studied for sculptural details and their suitability for use in age and growth determination. The scales of DFR and PFR did not indicate significant difference in the structural details, but slightly differed in terms of width, number of circuli, radii and circuli in terminal zone. The growth rates obtained from DFR-s (11.26 ±5.2mm) and PFR-s (9.98±2.3mm) when 1st and 2nd growth rings were laid, do not seem to differ much apparently. The average growth characteristics (Cth-10.43 ±2.25), growth constant (Clt-0.21414 ±0.0568), spec fie rate of linear growth (Cl-12.94 ±3.6 mm) and specific rate of weight increase (Cw-33.35 ±8.57 g) were also computed.

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Author Biographies

  • V S Rawat, Department of Zoology, HNB Garhwal University, Sringar (Garhwal), India
    Department of Zoology, HNB Garhwal University, Sringar (Garhwal), India
  • Prakash Nautiyal, Department of Zoology, HNB Garhwal University, Sringar (Garhwal), India
    Department of Zoology, HNB Garhwal University, Sringar (Garhwal), India

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Issue

Vol. 43 No. 2 (1996)

Section

Articles

License

The copyright of the articles published in Indian Journal of Fisheries vests with the Indian Council of Agricultural Research, who has the right to enter into any agreement with any organization in India or abroad engaged in reprography, photocopying, storage and dissemination of information contained in these journals. The Council has no objection in using the material, provided the information is being utilized for academic purpose but not for commercial use. Due credit line should be given to the ICAR where information will be utilized.

How to Cite

Rawat, V. S., & Nautiyal, P. (2011). Age and growth rate determination from pectoral and dorsal fin region scales of a hillstream teleost Barilius bendelisis (Ham.) with a note on difference in their structure. Indian Journal of Fisheries, 43(2), 171-178. https://epubs.icar.org.in/index.php/IJF/article/view/8947