You're a legend Adam, and you're right some young punk should be looking at this sort of thing for a thesis but what you're proposing is not a 12 month operation it would have to continue indefinitely. hey phill this is the sort of thing that groups such as ecofishers need to be jumping on board with, it is in all recreational angler's interests to make sure we have the best data available on the health of the fishery we use and enjoy.