Length-weight Relationship and Relative Condition Factor of Puntius carnaticus (Jerdon, 1849)
Length-weight Relationship and Relative Condition Factor of Puntius carnaticus (Jerdon, 1849)
Date
2010
Authors
Manojkumar, T. G.
Kurup, B. Madhusoodana
Journal Title
Journal ISSN
Volume Title
Publisher
Society of Fisheries Technologists (India)Cochin
Abstract
The length-weight relationship of Puntius carnaticus (Jerdon, 1849) was calculated for
males, females and indeterminates. The relationship was analyzed using the formula W =
aLb which was further transformed into Log W = a+ b log L. A total of 882 specimens
comprising 262 males, 150 females and 470 indeterminates with size groups ranging from
52 to 472 mm total length(TL) were used. The equation obtained for males was: log W =
- 4.1567 + 2.7148 log L; for females: log W = - 4.5089 + 2.8618 log L; and for indeterminates:
log W = - 0.9611+1.4243 log L. The regression coefficients between males and females did
not show any significant difference while significant difference could be noticed between males
and indeterminates and between females and indeterminates (p<0.01). Studies on relative
condition factor (Kn) of P.carnaticus revealed that the fluctuations in ‘Kn’ values can be
attributed to spawning cycle as well as feeding intensity
Description
Keywords
Length-weight relationship, Condition Factor, Puntius carnaticus
Citation
Fishery Tech 47(1):19-26