BIOLOGICAL OPINION

FOR THE OPERATION AND MAINTENANCE . OF THE 9-FOOT NAVIGATION CHANNEL . ON THE UPPER MISSISSIPPI RIVER SYSTEM. SUMMARY OF FINDINGS. In this Biological Opinion, the U.S. Fish and Wildlife Service (Service) has determined that the continued operation and maintenance of the 9-foot Navigation Project will jeopardize the continued existence of the Higgins( eye pearly mussel … ................
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