i think in CA if pond is on your property, you own the fish. there are strict laws as to what kinds of fish you can plant and or transport depending on the watershed connectivity w/ major streams or rivers. i made sure i had the water and mineral rights on both parcels i own, and as far as i know, i own the fish. but i dont know alot. i believe the water rights include surface and groundwater, but again, this is way outside my sphere of stuff.
maybe J.I.E.D. (jeffhasapond) learned about this (WRT CA) when he recently bought his property?
anybody parachutes on to my prop. is gonna have a parchute full of holes, and be lucky to make safe landfall.