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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Publisher
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
Keywords
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Citation
Bairwa. V.P, AND Sharma . B.K.