East Pond Data 2008

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The Secchi depth remained at or near the bottom at both stations.  The lake is becoming stratified at 4.5 meters.  The "colder" deep water prevents mixing of surface water with the deep lake water resulting in reduced oxygen input from the surface.   Sediment oxygen demand is consuming oxygen in the deep water as shown by the significant decrease in oxygen at both stations below 4.5 meters.

 Colby A


 
Colby B

 

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8/2008

Colby took profiles at north and south station, and took images of the benthos of the lake heading east from Colby A.

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The Secchi depth decreased nearly a meter at both stations.  The lake is becoming stratified at 5.5 meters.  The "colder" deep water prevents mixing of surface water with the deep lake water resulting in reduced oxygen input from the surface.   Sediment oxygen demand is consuming oxygen in the deep water as shown by the significant decrease in oxygen at both stations below 5.5 meters.

 Colby A


 
 
Colby B