A laker is a lake trout. One of the best fighting fish in my part of canada. They live in the colder part of the lakes down deep so you either vertical jig or use downriggers to get to them. In Lake Simcoe, my lake, they are targeted more in winter than summer as they are easier to get then. Ontario record is over 50lbs, this one was 18lbs. They fight like mad with repeated pulls back to the bottom. Fun in summer but unreal in winter cause in the winter we use ice fishing rods that are only around 32" long. Pretty wild seeing a 20lb fish come out of an 8" hole in the ice!! I attached a pic of one from the winter.