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OCEAN

OCEAN. O ceans cover 71% of Earth and they hold 97% of the planet’s water. ROCK CYCLE. Carbon Cycle. niche. Niche of producers To produce food for consumers To decompose and provide nutrients for new plants Niche of consumers To consume producers and provide food for upper level consumers

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OCEAN

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  1. OCEAN

  2. Oceans cover 71% of Earth and they hold 97% of the planet’s water

  3. ROCK CYCLE

  4. Carbon Cycle

  5. niche • Niche of producers • To produce food for consumers • To decompose and provide nutrients for new plants • Niche of consumers • To consume producers and provide food for upper level consumers • To decompose and provide nutrients for new plants • Niche of decomposers • To recycle dead plants, animals, and debris in the ocean and to maintain the balance of life and death in it

  6. Community Properties • Intertidal • Relatively small organisms that can adapt easily • Plants absorb sunlight (photosynthetic) • Pelagic • Organisms can endure lack of oxygen, cold temperatures, high pressure, dim light, and scarcity of food • Hadal • Life is sustained by chemical reactions from thermal vents • Most organisms are colorless and bioluminescent

  7. Environmental Pressures • Oil spills • Litter • Changing temperatures • pH decrease • Oxygen levels decrease (hypoxia) • Overfishing • Unstable food pyramid

  8. Population Dynamics • Amsterdam Albatross • Close to extinction • Due : • Long-line fisheries • Mortality of adult fish • Contacts between fishing units and foraging albatrosses

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