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Appunti primary production
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- Primary production involves photosynthetic organisms like mangroves, seagrasses, salt marshes, kelp forests, and phytoplankton; key factors include sunlight, CO2, and nutrients.
- Phytoplankton are categorized into femtoplankton, picoplankton, nanoplankton, microplankton, mesoplankton, and macroplankton based on size. They play a crucial role in primary production, with Prochlorococcus and Synechococcus being significant contributors.
- Photosynthesis converts light energy into chemical energy via the Calvin cycle and light reactions; chlorophyll-a is essential for capturing light, while accessory pigments like carotenoids and phycoerythrin help absorb different wavelengths of light. Photosynthetic rates increase with irradiance up to a point where they become saturated due to photoinhibition.
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