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Length Weight Relationship (LWR) and Condition Factor (K) of Brown Trout, Salmo trutta fario


Affiliations
1 Department of Zoology, University of Kashmir, Hazratbal, Srinagar – 190006, Jammu and Kashmir, India
 

Length-weight relationships and condition factor of Salmo trutta fario (Brown trout) at Kokernag trout fish farm, Anantnag, Jammu and Kashmir was estimated for a period of one year. During the present study the fish samples was within the range of 30cm to 45.8cm in length and 250g to 750g in weight were originally used to provide information on the condition of fish and to determine whether somatic growth was isometric or allometric. The relationship was analysed using the formula W = a Lb which was further transformed into Log W = a + b log L. The equation obtained for females was log W= 1.61 + 3.33 logL and for males was log W = 1.81 + 3.22 logL. Females show 'b' value slight more than males. Studies on condition factor revealed that the fluctuations in K values can be attributed to the spawning cycle. The condition factor 'K' was above 1 indicating robustness or well being of the experimental fish.

Keywords

Condition Factor, Length-Weight Relationship, Salmo trutta fario.
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  • Length Weight Relationship (LWR) and Condition Factor (K) of Brown Trout, Salmo trutta fario

Abstract Views: 269  |  PDF Views: 120

Authors

Muddasir Jan
Department of Zoology, University of Kashmir, Hazratbal, Srinagar – 190006, Jammu and Kashmir, India
Neelofar Jan
Department of Zoology, University of Kashmir, Hazratbal, Srinagar – 190006, Jammu and Kashmir, India
Imtiaz Ahmed
Department of Zoology, University of Kashmir, Hazratbal, Srinagar – 190006, Jammu and Kashmir, India

Abstract


Length-weight relationships and condition factor of Salmo trutta fario (Brown trout) at Kokernag trout fish farm, Anantnag, Jammu and Kashmir was estimated for a period of one year. During the present study the fish samples was within the range of 30cm to 45.8cm in length and 250g to 750g in weight were originally used to provide information on the condition of fish and to determine whether somatic growth was isometric or allometric. The relationship was analysed using the formula W = a Lb which was further transformed into Log W = a + b log L. The equation obtained for females was log W= 1.61 + 3.33 logL and for males was log W = 1.81 + 3.22 logL. Females show 'b' value slight more than males. Studies on condition factor revealed that the fluctuations in K values can be attributed to the spawning cycle. The condition factor 'K' was above 1 indicating robustness or well being of the experimental fish.

Keywords


Condition Factor, Length-Weight Relationship, Salmo trutta fario.

References





DOI: https://doi.org/10.18311/jeoh%2F2018%2F19992