This is legal in Alaska for pacific salmon if you are a resident. On certain streams once they get thier allotment of fish into the head waters to ensure a sustainable run of fish Residents may dip net up to 40 some salmon.
Having said that these guys are a%%holes. I am no animal rights activist however thier lack of respect for the fish was embarasing. Even if I plan to take fish I kill them quickly and efficiently as soon as they are out of the water. Even then I feel remorse. Maybe there is a little Indian blood in me. I respect my quarry. If I was there I would take that old guy down to the stream and hold his head under water for a minute then check his pulse.
I hope these guys were found and prosecuted.