LENGTH-WEIGHT RELATIONSHIP AND CONDITION FACTOR OF TRICHOGASTER LALIA AND T. LABIOSA FROM WESTLANDS OF BRAHMAPUTRA BASIN
54
Authors
-
G. Paswan
Dept. of Ecology & Environmental Science, Assam University, Silchar-788011
-
S. K.S. Abujam
Dept of Life Sciences, Dibrugarh University, Assam-786004
-
M. Dey
Dept. of Ecology & Environmental Science, Assam University, Silchar-788011
-
S. P. Biawas
Dept of Life Sciences, Dibrugarh University, Assam-786004
Abstract
The length-weight relationship of Trichogaster lalia and T. labiosa was studied from the different floodplain beels of Brahmaputra basin during 2010 to 2011. The pattern of growth (allometric) was verified from the value of ‘b’ in the equation, mean b value was 2.764 for male and 2.544 for female Trichogaster lalia whereas mean b value was 1.008 for male and 1.042 for female T. labiosa. The highest monthly condition factor value (25.98) for female and (25.634) for male T. lalia was recorded in monsoon and post-monsoon season respectively. In case of T. labiosa, the highest monthly condition factor value (25.177) for female (23.295) for male was recorded in winter.
Keywords: Trichogaster lalia, T.labiosa, Length-weight, Condition factor, Assam.
