If you planned on using the launch at SBH for the musky opener, forget about it. NYS Office of Parks & Recreation will close the launch from dusk on Thursday the 17th & reopen Sunday the 20th after 4:00 p.m.
Any questions about SBH contact A. Berti at the number listed at the top of the release.
I have no idea if the waterway at Bflo Harbor or the Upper Niagara will even be open to boaters. Those bodies of water aren't part of the NYS Parks system.