Great Lakes Fish and Wildlife Restoration Act of 1998

Great Lakes Fish and Wildlife Restoration Act of 1997 - Amends the Great Lakes Fish and Wildlife Restoration Act of 1990 to: (1) include among the Act's purposes to develop and implement proposals for the restoration of fish and wildlife resources in the Great Lakes Basin; and (2) include microorganisms within the definition of "nonindigenous species."

Requires the Director of the United States Fish and Wildlife Service to: (1) ensure that proposals resulting from recommendations of the Great Lakes fishery resources restoration study or identified through an annual request to specified State and tribal entities are developed and that the highest priority proposals are implemented; and (2) annually request that State Directors and Indian Tribes submit fish and wildlife resources restoration proposals based on the results of the study or other sources.

Requires the Great Lakes Fishery Commission to retain authority and responsibility for formulation and implementation of a comprehensive program for eradicating or minimizing sea lamprey populations in the Basin. Authorizes the Secretary of the Army, at the Commission's request, to construct and improve water resources projects related to sea lamprey management.

Establishes the Great Lakes Fish and Wildlife Restoration Proposal Review Committee. Requires the Director to select proposals to be implemented and, within available appropriations, fund their implementation. Sets forth cost-sharing requirements.

Requires maintenance of the functions of the Great Lakes Coordination Office in East Lansing, Michigan, and of the Upper and Lower Great Lakes Fishery Resources Offices.

Authorizes appropriations.