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Acid Rain Threatens Crayfish
Canadian scientists have released a new study on what they call "aquatic osteoporosis" and its drastic effect on declining crayfish populations and aquatic life in the lakes in and around Algonquin Provincial Park.

The researchers found that depleted calcium levels have now driven some crayfish populations to near extinction.

The pH levels are changing in many lakes but the calcium reserves are no longer present in the soil to replenish the lake. Crayfish have a particularly high calcium requirement because of their hard exoskeleton and their extinction could cause a ripple effect with severe consequences on other aquatic species.


 
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Green Lake County Conservation Department News - Green Lake County is located at the southern end of the “New North” region in Wisconsin. Green Lake County has a total area of 380 square miles, of which 26 square miles is water. It is also home to Wisconsin’s deepest lake; Green Lake has a maximum depth of 237 feet and covers an area 7 ½ miles long and 2 ½ miles wide.


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