Length Weight Relationship and Condition Factor of Selected Freshwater Fishes of GovardhanSagar Lake, Udaipur, Rajasthan

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Date
2018
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MPUAT, Udaipur
Abstract
Length Weight Relationship and Condition Factor of Selected Freshwater Fishes ofGovardhanSagar Lake, Udaipur, Rajasthan Vedrahi Prasad Bairwa* Dr. B. K. Sharma The present study was carried out to estimate the length-weight relationship and condition factor of selected freshwater fishes of GovardhanSager Lake, Udaipur, Rajasthan during January- June, 2018. The relationship between length and weight of Catlacatlaand Labeorohita from fish catch was calculated by establishing correlation and regression between the two parameters. The exponent values of total lengthand weight varied from 0.849 to 3.96 and 1.932 to 3.467 for different length groups of Catlacatla and Labeorohita. The higher value of ‘n’ could be attributed to high rate of weight increase with per unit increase in length. The correlation co-efficient ‘r’ between total length and weight were found to be significant for all the length groups in Catlacatla and Labeorohitain B and C Length groups are significant of both the species. The values of condition factor (K) of both the species were also computed and found that both the species performed well in Lake Environment. The maximum ‘K’ value was found 1.249 in Catlacatla (group A) and 1.210 in Labeorohita(group B). On the basis of length-weight data, the regression equations of body-weight on total body length were calculated. The higher values of ‘n’ could be attributed to high rate ofweight increase with per unit increase in length. Water quality parameter viz. air and water temperatures, pH , depth of visibility, dissolve oxygen, free carbon dioxide, carbonate and bicarbonate alkalinity, EC and TDS were observed throughout the study period and indicated that the water of the Lake remained congenial and productive from the fisheries point of view. The biodiversity ichthyofaunaof the study in thirty five species representing nine families have been recorded from this reservoir. Indian major carps especially Catlacatla and Labeorohita have dominated the catch of this lake.
Description
Length Weight Relationship, Condition Factor, Selected Freshwater Fishes
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Citation
Bairwa. V.P, AND Sharma . B.K.
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