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Mind Jog (4/22-4/23)

Mind Jog (4/22-4/23). What can humans do to prevent stormwater erosion? Plant oyster reefs, rain gardens, or trees! 2. What are the roles of oysters in the Chesapeake Bay? To provide habitats for animals and filter the water

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Mind Jog (4/22-4/23)

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  1. Mind Jog (4/22-4/23) • What can humans do to prevent stormwater erosion? • Plant oyster reefs, rain gardens, or trees! 2. What are the roles of oysters in the Chesapeake Bay? • To provide habitats for animals and filter the water 3. What does a good job handling stormwater runoff? What does a bad job? • Wetlands=good urban concrete=bad

  2. Determining Water Quality Mr. Swan Spring 2013

  3. Water Quality For all types of aquatic life, water needs • To have the right pH • Be the right temperature • Have the right amount of salt • Have lots of dissolved oxygen • Be clear • Have macroinvertebrates

  4. Importance of Water Quality • The Chesapeake Bay is threatened by industrial and agricultural pollutants • If the water becomes unbalanced, hundreds of species of fish, mammals, birds and invertabrates could die

  5. pH and Temperature • pH: if the water is too acidic or alkaline, animals could die • If the water gets to be too warm, It could disrupt egg formation and Bleach corals

  6. Salinity and Oxygen • There needs to be the right amount of salt in water: too much affects oxygen in the water, too little kills fishes • If there’s not enough oxygen in the water, fish and other organisms can suffocate

  7. Salinity of the Chesapeake Bay

  8. Turbidity and Macroinvertebrates • Turbidity is a measure of the clarity of water. If water is too turbid, it can cut organisms off from sunlight and keep hunters from seeing prey • Macroinvertebrates are small crustaceans, planktons, insects and worms that feed larger animals and decompose decaying ones

  9. Macroinvertebrates

  10. Fixing Water • Keeping pH under control means controlling carbon dioxide from burning fossil fuels. • Water temperature increases with shallow water and global warming.

  11. Fixing Water • Lots of wetlands/oysters filter water, limiting turbidity • Preventing excess algae keeps dissolved oxygen levels up • Macroinvertebrates just need balanced water!

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