Kitchi-Gami Almanac

Current Map of Lake Superior


Should Isle Royale’s Wolves Get a Gene Boost?

Do Isle Royale’s wolves need genetic rescuing? Is it appropriate? These questions are being asked and debated now because researchers with the 50-year-old wolf/moose study discovered that the wolves are suffering from malformed backbones caused by inbreeding.

Concerns about the future of Isle Royale’s isolated wolf population have spurred discussion of possible human intervention. If it were done, human intervention would mean delivering unrelated wolves to Isle Royale National Park to allow their genes to be mixed into the gene pool of the current population. But there are many ethical questions. For example, would a genetic rescue change, or maintain, the balance between wolves and moose? If intervention can prevent or reduce the wolves’ suffering, does that make it right?

Anyone can offer comments or read what others are saying online at www.wolfmoose.mtu.edu/comments. To learn more about the wolf/moose study, go to www.isleroyalewolf.org.


History Notes

Lake BulletMay 5, 1904: Crisp Point Lighthouse is activated; it’s one of four built between Whitefish Point and Grand Marais, Michigan. Source Crisp Point Historical Society
Lake BulletJuly 4, 1876: Ice is finally out of Lake Superior, and Duluthians use ice blown onshore to make ice cream. Source: Minnesota Historical Society
Lake BulletJuly 13, 1971: Pukaskwa National Park is established on Lake Superior. Source: Today in Canadian History
Lake BulletJuly 10, 1897: The temperature in Ashland hits 115° Fahrenheit. Source: Wisconsin Historical Society


Lake Levels

Current Water Levels
The levels on the hydrographs are shown in both feet and meters above (+) or below (-) Chart Datum. Chart Datum, also known as Low Water Datum, for Lake Superior is 601.1 feet (183.2 meters). It is a reference plane to which water depth and Federal navigation improvement depths on navigation charts are referred.
Water Level Key


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