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Primary Productivity

Primary Productivity - • Measuring Photosynthetic...

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Primary Productivity The rate at which carbon is produced by microbes, algae, and plants. Plants need solar energy Making your own food – autotroph. Autotrophs or primary producers use either photosynthesis or chemosynthesis to produce their own food. Chemosynthesis Energy derived from chemical reactions Chemical reaction may involve hydrogen sulfide or methane. Chemosynthetic communities are found associated with hydrothermal vents, hydrocarbon seeps, and cold water seeps.
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Unformatted text preview: • Measuring Photosynthetic Productivity in the Oceans • Ocean Color Influenced By: ○ The amount of turbidity from runoff ○ The amount of photosynthetic pigment or chlorophyll. • Ocean color reveals productivity ○ Yellow – green/red = High Productivity ○ Indigo-blue = Low Productivity • Eutrophic – HIGH productivity • Oligotrophic – LOW productivity • Productivity – isothermic...
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