Effects of domestic sewage on survival, food intake, growth and food conversion efficiency of the freshwater prawn, Macrobrachium lanchesteri

Ponnuchamy, R. and Shakuntala, K. and Reddy, S.R. and Ayyappan, S. (1980) Effects of domestic sewage on survival, food intake, growth and food conversion efficiency of the freshwater prawn, Macrobrachium lanchesteri. COMP. PHYSIOL. ECOL., 5 (3). pp. 169-174. ISSN 0379-0436

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Abstract

The effects of domestic sewage on the survival, behavior and oxygen consumption and food conversion efficiency of the freshwater prawn, Macrobrachium lanchesteri (de Man) have been described. Chemical analyses of raw sewage and its dilutions indicated that carbon dioxide (20 ppm), alkalinity (344 ppm CaCO3), nitrite-nitrogen (1.82 μ at N/l), phosphate-phosphorus (15.44 ppm) and dissolved organic matter (34.60 ppm) increased as the concentration of sewage increased. In contrast to this, the dissolved oxygen content of the medium was inversely proportional to the sewage concentration. The oxygen consumption of the prawn decreased from 1.48 ppm/g body wt/h (freshwater) to 0.23 ppm/g body wt/h (10 sewage) as the concentration of sewage increased. The prawns were found to elaborate considerable growth (0.36 to 0.75 mg/prawn/day) on continued exposure to sublethal concentrations (0 to 10) of sewage.

Item Type: Article
Additional Information: cited By 1
Uncontrolled Keywords: animal experiment; arthropod; growth; sewage; shrimp
Subjects: Faculty of Science > Environmental and Biological Sciences > Zoology
Divisions: Jnana Bharathi / Central College Campus > Department of Zoology
Depositing User: Mr. Kirana Kumar D
Date Deposited: 09 Mar 2016 07:40
Last Modified: 09 Mar 2016 07:40
URI: http://eprints-bangaloreuniversity.in/id/eprint/102

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