Double-Crested Cormorant Control

Double crested cormorant populations of the Great Lakes region have increased dramatically in recent decades in part, due to bans on DDT and general habitat improvement. As a result of this population increase, cormorants now negatively impact important fish species including lake trout, smallmouth bass, yellow perch, and walleye.  Increased cormorant numbers have also contributed to the destruction of vegetation on many islands where they nest. The LTBB Great Lakes Fisheries Program participates in a regional collaborative effort coordinated by the United States Department of Agriculture’s APHIS division to manage burgeoning cormorant populations and reduce their impact on fish species which are important to tribal fisheries.