I ran into Rick Dickson of Freehand Fly Fishing at the industry trade show last year. At that time, his company was hedging their bets that magnets could up your odds of catching fish. The then anecdotal evidence convinced them to introduce a line of products that have direct contact of magnets to hooks and flies.
Well, it seems now that they’ve been proven correct. A piece in The Seattle Times — adapted from ScienceNOW.com — describes how “scientists have isolated magnetic cells in rainbow trout.” While the piece has a few typos and the author actually seems to confuse a rainbow trout with a steelhead, the science behind it is pretty intriguing.