OONTYINTS
ix
VI. The Effect of Nutrient Levels on Phytoplankton
Growth Kinetics
.. .. .. .. .. 122
VII. Nitrogen and Phosphorus Levels in Phytoplankton . . 126
Phosphorus by Phytoplankton . . .. .. 127
A. Release of Organic Forms of Nitrogen and
VIII. The Assimilation of Nitrogen and Phosphorus by
Zooplankton
. . . * .. .. .. .. 128
A. Living Diets. . .. .. .. .. .. 129
B. Detritus
. . .. .. .. .. .. 130
C. Dissolved Organic Material
.. .. .. 130
D. Laboratory Studies on Assimilation
. . .. 132
E. Superfluous Feeding
.. .. .. .. 136
IX. Levels of Nitrogen and Phosphorus in Zooplankton . . 140
X. Nitrogen and Phosphorus Excretion by Zooplankton. . 145
A. Nitrogen Excretion. . .. .. .. .. 145
B. Phosphorus Excretion
. . .. .. .. 152
C. Seasonal Surveys of Nitrogen and Phosphorus
Excretion . . .. .. .. .. .. 156
D. Nutrient Regeneration
. . .. .. .. 160
XI. Growth of Zooplankton in Terms of Nitrogen and
Phosphorus
.. .. .. .. .. ,. 162
A. Rate of Growth
. . .. .. .. .. 162
B. Egg Production
. . .. .. .. .. 166
C. Net and Gross Growth Effioiencies
.. .. 165
XII. Plankton Production and Nutrient Levels in Certain
Sea Areas
.. .. .. .. .. .. 172
A. Temperate Regions. . .. .. .. .. 172
B. Tropical and Sub-tropical Regions
. . .. 178
D. Partially Enclosed Sea Areas
. . .. ,. 185
C. Polar Regions
. . .. .. .. .. 182