International Journal of Environmental Sciences

Volume 4 Issue 5 2014- March 2014    Pages: 626-632  <<Previous    Next>>

Growth status of Orange Chromide, Etroplus maculatus (Bloch) in Kayamkulam Lake, South Kerala (India)

Author Information:

Sajan Sajeevan - Department of Fisheries Resource Management, Kerala University of Fisheries and Ocean Studies (KUFOS), Panangad, P.O, Ernakulum, Kerala- 682 506, India

ABSTRACT

This study is an attempt to describe the growth status of Orange chromide, Etroplus maculatus in Kayamkulam Lake, Alappuzha (Kerala). The length-weight relationship was analysed using the formula W= a Lb, which was further transformed into Log W = a+ b log L. The value of coefficient ‘b’ (2.80) of the LWRs was in the expected range of cubes law, but the value is significantly different (p<0.05) from isometric value three and followed allometric growth pattern. Studies on relative condition factor (Kn) of E. maculatus revealed that the variations in ‘Kn’ values can be related to spawning cycle as well as feeding intensity of fish. The study concluded that the lake condition is favourable for the growth of E. maculatus.

Keywords: Etroplus maculatus, length weight relationship, Kayamkulam Lake

.DOI:10.6088/ijes.2014040404502

© 2014 Copyright by the authors, licensee Integrated Publishing Association.This is an open access article distributed under the Creative Commons Attribution License (3.0) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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