The brown trout in the video is by no means exceptionally large for this lake. The brown trouts in the lake only spawn every other year and are called Ice Age Brown Trout because they are believed to be sea trout locked in this lake during the last Ice Age. There are also 4 species of Arctic Char in the lake and 2 of them can get quite big too.

http://uk.youtube.com/watch?v=pVHuBE3nVvE