Some aspects of the nitrogen cycling in the Arabian Sea
Date
1992Author
Naqvi, S.W.A.
Noronha, R.J.
Shailaja, M.S.
Somasundar, K.
SenGupta, R.
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Extensive observations made in the Arabian Sea establish it as one of the largest oceanic reducing sites accounting for approximately 1/3 of the global water column denitrification. Evidence for large short-term (seasonal) variations in the intensity of the oxygen-deficient conditions is providEd. by data on the nitrogen system as well as the activity of the electron transport system (ETS). The results imply a quick renewal of the oxygen-depleted waters. Denitrification in the Arabian Sea is unique in that it does not occur beneath centres of most intense seasonal upwelling; instead, it is most intense in offshore areas of relatively low primary productivity. Estimates of some important terms in the nitrogen cycling are evaluated
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