ConcepTest: Ocean Element Profiles - 1
Question:
Which element could have a depth profile in the ocean that looks like this?
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A. Oxygen, an element produced during photosynthesis
B. Barium, an element required in trace amounts for micro-organisms
C. Nitrogen, a nutrient required by all phytoplankton
Student Responses:
If you would like to help acquire more Before and After statistics for this example, please contact the author.
No data yet. The correct response is C. This is a typical nutrient-type profile showing surface depletion and deep regeneration from remineralisation.
References and Notes:
Sarmiento, J.L. & N. Gruber (2006) Ocean Biogeochemical Dynamics. Princeton University Press, Princeton, NJ, 528 pp.