U.S. Fish and Wildlife Service biologists with a bighead carp, one of two species whose entry into the Great Lakes is sparking widespread concern.

Last week’s edition of Great Lakes Asian carp news brought both a U.S. Supreme Court decision and disclosure of the species’ environmental DNA in Lake Michigan.  But as members of Congress, state officials and Great Lakes advocates scramble to prevent a self-sustaining Asian carp population in the Great Lakes, a Minnesota commentator has challenged the prevailing wisdom, asking whether such a population would really be so detrimental to the Lakes and their resources.  Among other things, commentator Greg Breining argues whether the idea of a “healthy ecosystem” is valid and whether so-called invasive species are often a bad thing.

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