well,those rivers are all nearly an hour away from me but, I will travel to any of them.
Hmmm,white perch?,,,well the bass is it''s first cousin you know and I am willing to bet that at times there are some good ones in those rivers you mention.
winter time I bet you can find them in the quiet areas of them too.
there are many other smaller rivers that are not mentioned here that have fish in them wintering over,one just has to go hunting.
look at this:
http://www.bing.com/images/search?q=...pers&FORM=IGRE
http://www.bing.com/images/search?q=...electedIndex=2
if you do some recon,you will find many guys that fish those rivers,I'll put money on it.
maybe you are lucky to have those rivers.
if there are white perch in there,then there are stripers in there.