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6 Cards in this Set
- Front
- Back
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The vertical distribution |
Because of low light penetrationin the ocean, phytoplankton are confined to <100 m andeven less when the water is full of particles that preventlight penetration |
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The horizontal distribution |
There are areas of richproduction and low production, primarily established by theavailability of nutrients |
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mixing layers (Winter) |
low sun angle, strong winter winds, vertically well mixed High nutrient cold water |
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mixing layers (spring) |
increased sun angles, low winds, high nutrient warming water on top of high nutrient cold water |
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mixing layers (summer) |
high sun angle, low winds, low nutrient warm water on top of high nutrient cold water |
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Sverdrup’s (1953) Critical Depth Hypothesis |
production of organic matter by photosynthesis exceeds the destruction by respiration |
