Length-Weight Relationship and Condition Factor of a Commercial Food Fish Labeo rohita (Hamilton, 1822) from Ghaghara River, Uttar Pradesh, India
Shivaji Kanoujiya
College of Fisheries, Acharya Narendra Deva University of Agriculture and Technology, Kumarganj, Ayodhya, Uttar Pradesh- 224 229, India.
Devarshi Ranjan *
College of Fisheries, Dr. Rajendra Prasad Central Agricultural University, Dholi, Muzaffarpur -843121, Bihar, India.
Ashish Sahu
Faculty of Fisheries, Kerala University of Fisheries and Ocean Studies, Panangad, Cochin, Kerala- 682 506, India.
Durgesh Kumar Verma
ICAR-Central Inland Fisheries Research Institute, Regional Center, Prayagraj, Uttar Pradesh-211 002, India.
Mayank Bhushan Singh
College of Fisheries, Acharya Narendra Deva University of Agriculture and Technology, Kumarganj, Ayodhya, Uttar Pradesh- 224 229, India.
Sanjeev Kumar
Subject Matter Specialist, KVK, Shravasti, Uttar Pradesh- 271831, India.
Priyanka Verma
College of Fisheries, Dr. Rajendra Prasad Central Agricultural University, Dholi, Muzaffarpur -843121, Bihar, India.
*Author to whom correspondence should be addressed.
Abstract
The present study provides first-hand information about the length-weight relation of Labeo rohita (Hamilton) from Ghaghara River, Uttar Pradesh. We collected 107 specimens and took length and weight for better conservation techniques and proper management for rohu. A total of 107 specimens were examined for the study, which has ranging from 25.2-56.13 cm TL (Total length) and 183.3-2409.78 gm (weight) were used for the study of LWRs and condition factors. Our study represented that L. rohita exhibited a negative allometric growth (b < 3) indicating that the fish grows faster in length compared to their weight. The values of the correlation coefficient (r2) and condition factor (K) are 0.8601 and 1.27 respectively. This research will be useful for fishery research, stock assessment, conservation, and estimation of the fish condition of this Himalayan River.
Keywords: Length-weight relationships, Ghaghara River, fisheries management, Labeo rohita, allometric growth