The storing fish in buckets idea isn't going to do the fish any good.
Why not go down the lines of buying in cheap (China) measuring sticks (rulers we used to call them lol) and issue them to all competitors. They simply lay the fish across a wet mat and place the measure stick along side for a photo. Everyone has a digital camera or a mobile phone that takes pics.
You can purchase them in batches of different colours so you can issue a different coloured stick for every competition, that way no cheeky double entries from previous comps.
Comp decided by pics. No fish killed, fish become trickier to catch next time, the need for stocking reduces.
Or is that approaching another subject for another thread?
