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A study on length-weight relationship and relative condition factor of Atropus atropos (Bloch & Schneider, 1801) from Mangalore coast, India
6th Global Summit on Aquaculture and Fisheries 2017
Rajesh D P, Anjanayappa H N, Nayana P and S Benakappa
College of Fisheries, Mangalore, India
Posters & Accepted Abstracts: J Fisheries Livest Prod
Abstract
The present study deals with length-weight relationship of Atropus atropos for which no information is available on this aspect from Mangalore coast. Therefore the present investigation was undertaken. Fish samples were collected from fish landing center (Mangalore) and fish market. The regression coefficient of male was found to be lower than female. From this observation, it may be opined that female gained more weight with increase in length compared to male. Data on seasonal variation in condition factor (Kn) showed that Kn values were more or less similar in both the sexes, indicating almost identical metabolic activity. Gonadal development and high feeding intensity are the factors which influenced the condition factor. The seasonal fluctuations in the relative condition factor of both the sexes could be attributed to the sexual cycle, food intake and environmental factors. From the present study, it can be inferred that the variation in the condition of Atropus atropos was due to feeding activity and gonadal maturity.Biography
Rajesh D P is a PhD Scholar at the Department of Fisheries Resources and Management, College of Fisheries, Mangalore, India.
Email: d.prajesh@yahoo.com
