Along the Chicago lakefront, gizzard shad - a type of herring — are dying off in large numbers. Thousands, maybe more, are dead and frozen or floating in Lake Michigan. Geese and ducks are feeding on the dead and dying fish.Gizzard shad, members of the herring family, are more sensitive to drops in oxygen levels than most fish. And thick ice came early to Chicago harbors in December.PHOTO: Dale Bowman~For the Sun-TimesSource
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