Eutrophication of Lake Erie - PowerPoint PPT Presentation

1 / 8
About This Presentation
Title:

Eutrophication of Lake Erie

Description:

Lake Erie was formed originally by glacial movement around 1 million years ago ... little bit and yeah that's it the only web page I can name is www.dictionary.com ... – PowerPoint PPT presentation

Number of Views:224
Avg rating:3.0/5.0
Slides: 9
Provided by: Flex
Category:

less

Transcript and Presenter's Notes

Title: Eutrophication of Lake Erie


1
Eutrophication ofLake Erie
  • Teela Gaetz

2
Formation of Lake Erie
  • Lake Erie was formed originally by glacial
    movement around 1 million years ago
  • Lake Erie in its present form is about 4,000
    years old
  • Lake Erie started as a a lowland or basin but
    after many glacier advances was formed into the
    lake it now is

3
What Happened?
  • In the 1960s plant and animal life in Lake Erie
    started to die off due to pollution
  • Run off and sewage was causing there to be too
    many nutrients in the lake disturbing the natural
    balance

4
What happened (cont)
  • The extra nutrients in the lake caused an
    increase in the growth of algae, the added amount
    of algae caused a depletion of oxygen which was
    needed by the lakes plants and animals to
    survive

5
What has been done to improve Lake Erie
  • All sewage and septic systems surrounding Lake
    Erie were replaced or fixed to reduce the run off
    into the lake
  • Debris was collected from Lake Eries shore line

6
What has been done to improve Lake Erie (cont)
  • U.S. Fish and Wildlife Service used money from
    congress to buy land surrounding Lake Erie to
    prevent future pollution
  • Millions were spent on waste water treatment
    plants to help prevent future pollution

7
What challenges does Lake Erie still face
  • Scientists and lake researchers are worried that
    what happened to lake Erie in the 60s could
    happen again if the conditions of the lake are
    not monitored and lake clean up is not continued

8
Bibliography
  • The internet . . . . . . text book a little bit
    and yeah thats it the only web page I can name
    is www.dictionary.com
  • TeeLa
Write a Comment
User Comments (0)
About PowerShow.com