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Chesapeake Bay

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by

Kylee Naumann

on 5 June 2013

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Transcript of Chesapeake Bay

The Chesapeake Bay BY: Kylee Naumann Estuary Enclosed body of water, where fresh water from rivers and streams mixes with salt water from the ocean
Largest in the country Facts The water shed is 4,000 square miles
Produces 500 million pounds of seafood per year
more then 150 rivers and streams
50 different military bases from every branch of the military
Holds 18 trillion gallons of water
Average depth is 21 feet ( Kent Island reaches 174 feet) The Start 10,000 years old
The melting of the glaciers
Trees such as Oak, Maple, and Hickory start to appear
The Susquehanna over flowed and created the bay
The first oysters colonized the bay
Only reached it's farthest point 3,000 years ago, Havre de Grace Past Biotic Factors Oak Trees
Clams
Oysters
Bass
Shad
Skate
Barnacles Present Biotic Factors Blue Heron
Blue Crab
Moon Jellies
Fiddler Crab
Osprey
Rainbow Snake
Shrimp
Bay Grasses Past and Present Abiotic Factors Any non-living part of the environment Any living part of the environment with which an organism might interact Temperature(Water-40 to 80 degrees F, Outside-20 to 95 degrees F)
Boats Past Present Pollution
Boats
Temperature History Oyster Wars Maryland outlawed dredging( a net attached to a frame and dragged by the boat)
Only state residence could harvest oysters
1865 Maryland General Assembly passed law requiring annual permits
1880 supplied half the worlds supply
Started the Maryland Oyster Navy(now known as Natural Resources Police) Pollution Nitrogen and phosphorus
In 1600's the Bay was rated a 100 out of a 100, Now 32 out of 100
Most pollution comes from sewage treatment plants, animal feed lots, and runoff from crop land, urban, and suburban areas
Agricultural runoff -40 percent of the nitrogen and 50 percent of the phosphorus entering the Chesapeake Bay. Sources http://www.cbf.org/how-we-save-the-bay/issues/dead-zones/nitrogen-phosphorus
http://www.chesapeakebay.net/discover/bayecosystem/bottom
http://www.windows2universe.org/
http://bayecology.weebly.com/
http://bayville.thinkport.org/default_flash.aspx
http://www.marinersmuseum.org/ Pictures 15 million people live in the Bay watershed
seventh oldest surviving English named place in the United States
It would take longer to go around the Chesapeake Bay then go from Maine to California
Full transcript