Measurements of microbial metabolism suggest that the denitrification rate in the oxygen deficient waters of the eastern tropical South Pacific was approximately 2.5 × 1013g N yr-1 during September 1976-May 1977. This rate may be considerably higher than the rate that existed before ~ 1972....
Codispoti, L. A., and T. T. Packard. 1980. "Denitrification rates in the eastern tropical South Pacific." Journal of Marine Research 38, (3). https://elischolar.library.yale.edu/journal_of_marine_research/1515