Effect of salinity on the survival and growth ofChanda (=Ambassis) gymnocephalus (Lac.) fry (Pisces; Centropomidae)

Nair, J. Rajasekharan ; Balasubramanian, N. K. ; Nair, N. Balakrishnan (1982) Effect of salinity on the survival and growth ofChanda (=Ambassis) gymnocephalus (Lac.) fry (Pisces; Centropomidae) Proceedings of the Indian Academy of Sciences - Animal Sciences, 91 (2). pp. 143-152. ISSN 0253-4118

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Official URL: http://www.ias.ac.in/jarch/procb/91a/143-152.pdf

Related URL: http://dx.doi.org/10.1007/BF03186121

Abstract

The survival and growth of Chanda (= Ambassis) gymnocephalus (Lac.) fry (8.8 ± 0.2mm) collected from Murukumpuzha Lake (9.34%) for a ninety day period in different salinity grades were studied. A faster rate of growth is exhibited by the fish in the highest salinity grades (22.41 and 28.51%), even though during the first month, growth and health was apparently better in the lower salinity grades (4.11, 10.21 and 16.31%). Assimilation efficiency also showed a similar gross picture. Thus inC. gymnocephalus, an euryhaline species, the fry show preferred salinity gradients for optimum growth within the fluctuating salinity regime at a stable temperature (26 ± 2°C) and hence may make salinity bound emigrations with growth.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:Salinity; Growth Efficiency; Assimilation Efficiency; Satiation; Chanda gymnocephalus
ID Code:25808
Deposited On:04 Dec 2010 11:37
Last Modified:17 May 2016 09:14

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