Multiple Choice
The classic Sverdrup model of the initiation of a phytoplankton bloom has been criticized because
A) Phytoplankton have been found to mainly bloom in the summer
B) When the phytoplankton bloom begins, the water column is surprisingly cold and vertically mixed
C) Measures of the mixing depth show that is actually gets deeper as the spring progress.
D) Nutrients have been found to be more limiting in winter surface waters than previously supposed.
Correct Answer:
Verified
Correct Answer:
Verified
Q19: Benthic-planktonic coupling<br>A) Occurs only in the deep
Q20: Nitrogen<br>A) Tends to exchange less rapidly than
Q21: Nuisance blooms<br>A) Have become more frequent in
Q22: The Spring diatom increase<br>A) Reaches its peak
Q23: Transparent exopolymers<br>A) Are secreted by zooplankton to
Q24: Grazing by zooplankton<br>A) Is always the reason
Q25: Auxotrophic phytoplankton<br>A) Require only inorganic nutrients to
Q26: Phytoplankton living in offshore low nutrient conditions<br>A)
Q27: Nitrogen is usually taken up the fastest
Q28: Iron is often limiting<br>A) At the heads