“I don't know. But some of the lakes around Mt St Helens had partial kills and limited recruitment for a while after Mt St Helens erupted. During that period their fish grew larger, but most, if not all, of the fish in those lakes later reverted to their original stunted condition. That could be one reason you might be getting mixed messages. The fish were larger for a while but have overpopulated again. I don't know much of anything about that lake, so this is purely wild speculation. I guess you'll have to go up and find out :)”