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presented along with a chapter on biogeography and rates of N 2 fixation in different
ocean basins (Chap. 8). In Chap. 8, N 2 fixation rates are compared with terrestrial
rates, fixation by Haber Bosch industrial N 2 fixation, and N losses from the oceans
from denitrification and anammox pathways. Of particular interest to our rapidly
changing planet is future projections of rates of N 2 fixation by different organisms
in geographically different habitats. This is covered in Chap. 9, entitled “Marine N 2
Fixation, Global Change, and the Future.” The authors point out the very complex
changes occurring in regard to CO 2 concentrations, pH, temperature, and Aeolian
dust input on a variety of diazotrophic species and call for more research on this
important topic. I think this book belongs on the bookshelf of anyone interested in
ocean biogeochemistry and marine ecosystem biology.
Throughout the entire book, the authors provide richly colored figures to visually
convey complex information on global N processes. The marine community owes a
major “Thank You” to Jon and Doug for this detailed, expertly written, and
timely volume.
Professor, Estuary & Ocean Center
Edward J. Carpenter
San Francisco State University,
Tiburon, CA, USA
References
Capone, D. G., Bronk, D. A., Mulholland, M. R., & Carpenter, E. J. (Eds.). (2008). Nitrogen in the
marine environment (2nd ed.). Elsevier.
Carpenter, E. J., & Capone, D. G. (Eds.). (1983). Nitrogen in the marine environment. Academic
Press.
Dugdale, R.  C., Menzel, D.  W., & Ryther, J.  H. (1961). Nitrogen fixation in the Sargasso Sea.
Deep-Sea Research, 7, 298–300.
Dugdale, R. C., Goering, J. J., & Ryther, J. H. (1964). High nitrogen fixation rates in the Sargasso
Sea and Arabian Sea. Limnology and Oceanography, 9, 507–510.
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