Primary productivity of some fringing reefs of south-east India

T. Balasubramanian, M.V.M. Wafar


Primary productivity of two fringing reefs in south-east India was studied from the diurnal curve method. The rate of production in the waters around the reef was determined by 14C uptake and chlorophyll a estimation. The rates of production and consumption in individual sea-grasses were determined by the light and dark bottle oxygen method. Gross production of the Palk Bay reef ranged from 4.86 gC/m2/day in March to 9.5 gC/m2/day in May. In the Kurusadai island reef the rate of gross production was 2,39 gC/m2/day in November. Phytoplankton production in the Palk Bay reef area ranged from 0.51 gC/m2/day to 1.62 gC/m2/day and chlorophyll a values from 0.177 mu g/l to 0.695 mu g/l. In the Kurusadai reef the phytoplankton production was 0.17 gC/m2/day and the chlorophyll a was 0.163 mu g/1. Oxygen production and consumption in individual corals and sea grasses indicate that the individual species is autotrophic with P/R ratios exceeding 1


Full Text: PDF


  • There are currently no refbacks.

Creative Commons License Mahasagar by National Institite of Oceanography, Goa, India is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. Powered by Open Journal Systems. Site is best viewed in 1024X768 resolution. A project by Mithun Raj M. at NIO.