4. Marine Biology

Phytoplankton Biology — Quiz

Test your understanding of phytoplankton biology with 5 practice questions.

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Practice Questions

Question 1

According to Sverdrup's critical depth hypothesis, phytoplankton blooms can initiate when the mixed layer depth

Question 2

What is the key difference between new production and regenerated production in phytoplankton nutrient utilization?

Question 3

If areal primary production is 200 mg C m⁻² d⁻¹ and export flux of particulate organic carbon at 200 m is 40 mg C m⁻² d⁻¹, what is the e-ratio? Show calculation.

Question 4

A phytoplankton species shows a chlorophyll a:carbon ratio of 0.03 at the surface but 0.06 at the deep chlorophyll maximum. This indicates that the species

Question 5

A community C:N ratio of 8:1 deviates from the Redfield ratio. Which process best explains this and its implication?