Fish Hunter,
I keep quite an extensive log on every fish caught during a trip. It goes back quite a ways and has been reviewed by some state officials to actually support a future "Test Fishery" rather than "Test Netting" to determin a run-size.
If you or anyone else is interested in a fishing log from a guides point of view, drop me an e-mail and I'll send you the fishing log form that I use along with a legend for abreviations to use.
All Ya need to do is run off copies of it and Yer good to go.
I've been working for a couple of years now compiling data and entering it all into the computer, and when Ya start doing the math and run statistics on some of the techniques and tackle you use, you may be very suprised on what you find.