Fisherfolk can be tremendous founts of information about marine animals. They know where to find different species, what sort of baits they like best, what sizes to expect, and how all these things change with the seasons. Smart marine biologists spend a lot of time talking with fishers and learning from them.
That said, fishers can sometimes draw rather curious conclusions from what they observe. Here's an excerpt from a
recent article by well-known angler and fishing writer Charley Soares: