Don't forget that when you are attempting to electroshock them, you could also be shocking whatever native species that are in the area and have to deal with that as well. I'm sure there are smarter minds than mine that could figure out how to get around that perhaps. Maybe up the subsidy during their spawning time to persuade commercial fishermen to go after them. Probably this all has been thought out by the minds that are in charge. Just wondering out loud.