http://www.fairviewpost.com/2014/06/...-cummings-lake
Quote from article
Fairview Post
Wednesday, June 25, 2014 9:12:24 MDT AM
"Although the water level of Cummings Lake is back up. Apparently the water is not presently fit for fish to swim in.
Water from Cummings Lake is being tested after a test batch of trout placed in the lake died. Apparently the lake has quite low oxygen levels.
Director of Community Services Daryl Greenhill told council one theory is the water, which came from the canals, was very high in algae, which can reduce oxygen levels.
Also, some of the water is runoff from farm fields and possibly very high in nutrients, boosting algae growth and cutting oxygen levels.
He said further tests are needed to solve the problem and trout cannot be put in the lake until oxygen levels are back up.
Asked if there are any perch remaining in the lake, Greenhill said when a test-netting was done there were no fish caught but both he and Councillor Tim Schindel have heard rumours perch are being caught at Cummings Lake.
Greenhill added that Perch are much more tolerant of low oxygen levels than trout."