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9 Critical Factors in Plankton Abundance

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Cause of the spr<strong>in</strong>g<br />

phytoplankton <strong>in</strong>crease:<br />

Important concepts:<br />

Key processes:<br />

1. Water column becomes<br />

more stable <strong>in</strong> spr<strong>in</strong>g as sun heats<br />

water from above.<br />

2. Surface nutrients are rich and trapped <strong>in</strong><br />

surface waters.<br />

3. Phytoplankton cells are no longer stirred<br />

to darker deep waters ----> BLOOM!!

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