Ecology, Environment and Conservation Paper

Vol.16, Issue 1, 2010; Page No.(51-55)

VARIATIONS IN THE BIOMASS OF THE MACROPHYTES OF OKSOIPAT LAKE (BISHNUPUR), MANIPUR, INDIA

S. Umeshwari Devi and B. Manihar Sharma

Abstract

Seasonal variations in the biomass of the macrophytes in Oksoipat lake, Manipur were carried out at monthly intervals during a period of two years. The Oksoipat lake is located at a distance of 21km on the southwestern side of Imphal city. The study was conducted at five different study sites including one site which is semi-terrestrial in habitat. Among the dominant macrophytic species, the maximum biomass value was exhibited by Ceratophyllum demersum, Alternanthera philoxeroides, Echinochloa stagnina, Hydrilla verticillata etc. The total biomass of all species (combined) ranged from 150.87gm-2 to 588.05 gm-2.

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