Fidel,
Like others said, lake trout, SMB, LMB and pike are the species that swim this body of water. The back bays is where you'll find pike and bass. Lots of weeds and pads and are shallow, around 10' - 15' fow. There is lots of traffic on that lake so your best fishing time would be early morning before they (the recreational boaters) wake up and at sun down.
There is a lot of under water rocks that are slightly submerged that you must be careful of, if I was you I would take it easy on the throttle until you find those.
Now as for the fishing license, here is the link to QMNR for prices *** EDITED *** OOOPPPSS
http://www.mrnf.gouv.qc.ca/faune/chasse/ta...ermis.jsp#peche
Hope this help and good luck on your journey!!!
Tight lines
Jacques