High new production in the Bay of Bengal: Possible causes and implications
Article first published online: 25 SEP 2004
Copyright 2004 by the American Geophysical Union.
Geophysical Research Letters
Volume 31, Issue 18, September 2004
How to Cite
2004), High new production in the Bay of Bengal: Possible causes and implications, Geophys. Res. Lett., 31, L18304, doi:10.1029/2004GL021005., , , and (
- Issue published online: 25 SEP 2004
- Article first published online: 25 SEP 2004
- Manuscript Accepted: 3 SEP 2004
- Manuscript Received: 14 JUL 2004
 We report the first measurements of new production (15N tracer technique), the component of primary production that sustains on extraneous nutrient inputs to the euphotic zone, in the Bay of Bengal. Experiments done in two different seasons consistently show high new production (averaging around 4 mmol N m−2 d−1 during post monsoon and 5.4 mmol N m−2 d−1 during pre monsoon), validating the earlier conjecture of high new production, based on pCO2 measurements, in the Bay. Averaged over annual time scales, higher new production could cause higher rate of removal of organic carbon. This could also be one of the reasons for comparable organic carbon fluxes observed in the sediment traps of the Bay of Bengal and the eastern Arabian Sea. Thus, oceanic regions like Bay of Bengal may play a more significant role in removing the excess CO2 from the atmosphere than hitherto believed.