its basically the same idea as a bug zapper when we use a light boat (we dont always, sometimes we just rely on our high powered sonar) but there's a smaller boat with high powered lights and the squid are drawn to it. then the large boat uses it's skiff to lay a very large net around the school of squid. then the net is pulled aboard and put in the hatch. the hatch is below freezing and is probably the least painful way to kill a squid. i think thats what people do to suffering cephs... put them in the freezer.
i dont know thats up to the fishermen. but our dock is right across the street from MBARI and i think some of you are going there. you should ask one of the capitains. you could probably pay them or something. or maybe just work on the boat.