$1,625,000, which shall be made available from funds otherwise authorized to be appropriated if such funds are so authorized, to fund aquatic nuisance species prevention and control research under
section 4722(i) of this title at the Great Lakes Environmental Research Laboratory of the National Oceanic and Atmospheric Administration, of which $500,000 shall be made available for grants, to be competitively awarded and subject to peer review, for research relating to Lake Champlain;