Net phytoplankton production (NPP) is low in warm seas due to __________________

Net phytoplankton production (NPP) is low in warm seas due to __________________ Correct Answer strong pycnocline

NPP is low in warm seas, around 55 g C/m2 due to a stronger pycnocline that prevents vertical mixing of nutrients from below. Dinoflagellates are more abundant than the diatoms in such conditions.
Bissoy MCQ

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Which of the following are reasons for the chief fishing grounds being located in continental shelf areas where cold and warm currents meet?
I. Warm currents are rich in phosphates and nitrates
II. Plankton - the chief fish feed - thrives in these regions
III. The meeting of cold and warm currents allows the water to be well aerated
IV. The epicontinental seas allow sunlight to reach almost to the bottom
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