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CONTENTS
VIII. Economic Importance . . .. .. .. ..
A. Fouling
. . .. .. .. .. ..
B. Food of Man, and of Commercial Fish
C. Uptake of Harmful Substances . . .. ..
. . ..
IX. References . . .. .. .. .. .. ..
Plankton as a Factor in the Nitrogen and Phosphorus
Cycles in the Sea
E. D. S. CORNER AND ANTHONY G. DAVIES
I. Introduction
.. .. .. .. .. ..
11. The Chemical Forms of Nitrogen and Phosphorus
Dissolved in Sea Water . . .. .. .. * .
A. Inorganic Nitrogen..
* . .. .. ..
B. Physico-chemical Reactions
. . .. ..
C. Organic Nitrogen . . .. .. .. ..
D. Inorganic Phosphorus
. . .. .. ..
E. Organic Phosphorus
.. .. .. *.
111. The Stoichiometry of Biologically Induced Changes in
Nutrient Levels . . .. .. # . .. *.
A. The " Assimilation Ratio ", d N : d P . . ..
B. Apparent Oxygen Utilization
. . .. ..
IV. Uptake of Nitrogen Compounds by Phytoplankton . .
A. Inorganic Forms of Nitrogen
. . .. ..
B. The Effect of Light. . .. .. .. ..
C. The Hyperbolic Relationship
. . .. ..
V. Uptake of Phosphorus Compounds by Phytoplankton. .
A. Inorganic Forms of Phosphorus . . .. ..
B. Organic Forms of Phosphorus
. . .. ..
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