Oceanography > Issues > Archive > Volume 14 > Issue 4

2001, Oceanography 14(4):68–77, http://dx.doi.org/10.5670/oceanog.2001.08

Element Stoichiometry, New Production and Nitrogen Fixation

Authors | First Paragraph | Full Article | Citation







Authors

Anthony F. Michaels | Universily of Southern California, Los Angeles, California, USA

David M. Karl | University of Hawaii, Honolulu, Hawaii, USA

Douglas G. Capone | University of Southern California, Los Angeles, California, USA

Top



First Paragraph

Over the decade and a half since planning for the Joint Global Ocean Flux Study (JGOFS) began, a number of shifts, both subtle and profound, have occurred in certain paradigms of biological and chemical oceanography. Nowhere have greater changes taken place than in the way we view the stoichiometry of elements in the ocean and the processes that influence these patterns. We started this era with a conception of new production that focused on nitrate, linked to other elements in a simple, generally stable ratio in the ocean. We now know that elemental ratios vary more than we thought. We also know far more about the importance of iron as a limiting nutrient and its effects on elemental stoichiometry. Assumptions about systems in steady state have given way to the recognition that nothing is constant except change. Relationships between nutrient fluxes and climate conditions over a broad spectrum of time scales have become apparent.

Top



Full Article

4.15 MB pdf

Top



Citation

Michaels, A.F., D.M. Karl, and D.G. Capone. 2001. Element stoichiometry, new production and nitrogen fixation. Oceanography 14(4):68–77, http://dx.doi.org/10.5670/oceanog.2001.08.

Top