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International Journal of Environment Science and Technology
Center for Environment and Energy Research and Studies (CEERS)
ISSN: 1735-1472
EISSN: 1735-1472
Vol. 3, No. 2, 2006, pp. 141-146
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Bioline Code: st06017
Full paper language: English
Document type: Research Article
Document available free of charge
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International Journal of Environment Science and Technology, Vol. 3, No. 2, 2006, pp. 141-146
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Utilization and flow of energy in tropical ecosystem: A test case for two Ox-bow lakes
S. K. Das and D. Chakrabarty
Abstract
To estimate the rate of organic production, two solar powered tropical natural aquatic systems (Oxbow lakes) have been studied for 24 months. The study of utilization of energy in those two tropical lakes has revealed that herbivores were more efficient in energy utilization than autotrophs. Silver carp and grass carp were found to be most efficient in conversion of energy in the grazing and detritus food chain of these lakes. The efficiency of the system to fish production was found to be 0.05 % of the total available solar radiation. Various forms of life are all accompanied by energy changes, even though no energy is created or destroyed in the studied system.
Keywords
Energy budget, tropical ecosystem, polyculture, Ox-bow lake, pyramid of number, pyramid of biomass
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