By Eve Wackett
The Great Lakes Center for Environmental
Research and Education is performing research and meeting
with the Great Lakes Commission and others to determine
why Lake Erie is dying again. (www.buffalostate.edu/orgs/glc/)
Lake Erie, the shallowest of the Great Lakes, was once deemed
the place where “fish go to die” by talk show
host Johnny Carson.
Captain John Freidhoff, the field station manager at the
Buffalo State Great Lakes Field Office on Porter Avenue
said, beginning in March meetings will take place with the
commission and several research missions are scheduled to
determine the “actual chemistry of the water.”
Funding is already in place for the research and budget
cuts should not affect the work to be done.
“We will begin to take water samples at various depths
as well as bottom samples to measure for oxygen, temperature,
pH levels, chlorophyll and other factors,” he said.
“We will enter the data into the GIS mapping program
to analyze the results and compare the results with other
data collected from the commission and others.” (www.great-lakes.net/gis)
Thirty years ago, the United States and Canada signed the
Great Lakes Water Quality Agreement, an agreement to protect
and clean the Great Lakes. (www.epa.gov/water/yearofcleanwater)
(www.binational.net)
Since the agreement was signed the Great Lakes have cleaned
up considerably. Yet this past summer researchers discovered
a growing dead zone (www.epa.gov/glnpo/lakeerie/eriedead
zone.html), an area depleted of oxygen, where life struggles
to survive. (www.on.ec.gc.ca/water/
greatlakes/lakes/erie/intro-e.html)
The dead zone covers an area more than 6,300 square miles
spanning from Erie, Pa to Sandusky, Ohio, in the central
basin of Lake Erie. Several factors may be related and contribute
to the dead zone. (www.on.ec.gc.ca/laws/coa/2001/lake-erie-e.html)
- An invasion of non-native species such
as zebra and quagga mussels, sea lampreys, round gobies
and Asian carp contribute to biological pollution.
- Biological pollution rather than chemical
pollution may be the main reason for the dead zone today.
- Avian botulism cases involved more than
5,500 birds. These birds were collected along the Lake
Erie shoreline last year. The birds eat the fish that
may have been exposed to botulism from decaying algae.
- An increased level of phosphorous has been
measured in the lake. Phosphorous levels were the reason
for Lake Erie’s death in the 1960s and 1970s.
- The phosphorous excreted from the mussels
feed the algae, the algae dies, falls to the bottom of
the lake, the dead algae decompose causing botulism and
other diseases.
- The decaying of plant and animal life use
up the oxygen they need to survive.
- Global warming effects.
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