Aquatic Ecosystems • Freshwater ecosystems – lakes, rivers, wetlands (marshes & swamps) • Marine ecosystems – coastal marshes, estuaries, coral reefs, ocean • Abiotic factors that affect life : temperature, light, dissolved oxygen, nutrients
Freshwater Ecosystems • Categorized as either flowing or standing • Wetlands– areas of land covered with fresh water for at least part of the year • Important b/c: • Remove pollutants & improve water quality • Control flooding • Home for native & migratory wildlife
Marine Ecosystems • Estuaries–where fresh water from a river mixes with salt water from the ocean • Home for many organisms, very productive • Animals : fish, dolphins, manatees, otters, crabs, birds • Threats: pollution, human development
Marine Ecosystems • Coral reefs – areas where coral animals build skeletons & support thousands of organisms (= high biodiversity) • Found in shallow, clear tropical waters • Threats: Coral bleaching – high water temperatures causes coral to die
Marine Ecosystems • Ocean • Open ocean – phytoplankton perform photosynthesis eaten by zooplankton eaten by fish • Deep ocean is dark, cold • Supports decomposers, filter feeders • Threats: pollution (runoff, city waste), overfishing, global warming • The United Nations Environment Program estimated in 2006 that every square mile of ocean contains 46,000 pieces of floating plastic.
Create an Aquatic Creature • You (alone) will create a new, never discovered, completely original aquatic creature. • Your creature must live in one of the aquatic biomes discussed in class. • Your creature must have an adaptation particular for that environment. • Have fun and be creative! You MUST include: • Name of your creature (20 pts) • Name of the aquatic in which your creature lives (20 pts) • Illustration of creature (20 pts) • Illustration of creature’s habitat (20 pts) • 5 – 7 sentences explaining your creature, its biome and its adaptation (20 pts)