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ESTUARIES

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					ESTUARIES
       1. What is an estuary?

• Partially enclosed body of water
  where saltwater mixes with
  freshwater
• Where rivers meet oceans.
EVER HEARD OF NEW YORK CITY?
       Well it’s an estuary
 2. Name some different bodies of
 water that are types of estuaries?

• sloughs, bays, harbors, sounds, inlets
  and bayous
  3. Why are estuaries important?

• Estuaries are among the most
  biologically productive ecosystems on
  the planet.
• That means estuaries are home to
  more living things than most other
  places on Earth.
• LOTS OF BIODIVERSITY!
   3. Why are estuaries important?
 • More than two thirds of the fish and
   shellfish we eat spend some part of their
   lives in estuaries.
 • Many animals spend their “childhood” in
   estuaries.
 • ESTUARIES = OCEAN’S NURSERY




Baby shark – in estuary    Adult shark – in ocean
  3. Why are estuaries important?

• They act as filters for terrestrial
  pollutants and provide protection from
  flooding.
• This means estuaries SPONGE UP
  POLLUTION coming from the land
  from getting into the oceans.
LOTS of POLLUTION
                    LESS POLLUTION




  ESTUARIES ACT LIKE A SPONGE
3. Why are estuaries important?
• Estuaries stop flooding
• HOW? Wet land can hold more water
  than dry land because water sticks to
  water (cohesion)
 3. Why are estuaries important?
• Estuaries also have economic
  importance. These dynamic bodies of
  water provide us with an important
  source of FOOD




               McFish
  3. Why are estuaries important?

• Estuaries are also a popular tourist
  destination.
• This means people like to go on
  vacation in estuaries to boat, swim,
  bird watch and fish.
• TOURISM = MONEY
 4. How do humans hurt estuaries
• Dredging, Draining, Bulldozing, Paving,
  Polluted Runoff From Rural, Suburban,
  and Urban Areas, Dams, Sewage
  Discharges.

Rural = farmland
Suburban = neighborhoods
Urban = cities
People dredge to grab the sand from the bottom
of the estuary to put on other beaches that are
running out of sand.
   5. What are some ways that we
       can protect estuaries?
• Conserve water, use less fertilizer, stop
  littering, respect habitats, follow signs that
  say DON’T WALK and NO WAKE, keep
  our beaches clean.
6. TRUE or FALSE. The tides affect
   estuaries TRUE
7. TRUE or FALSE. An estuary has more
   life per square inch than the best
   farmland TRUE
8. TRUE or FALSE. There are over 100
   estuaries in the U.S. TRUE
9. TRUE or FALSE. Between 1973 and
   1983 North Carolina lost more estuaries
   than any other state. TRUE
SO WHAT?

HOW DOES THIS
AFFECT YOU?

				
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