Who fishes for lobsters? That does not make sense. Trap lobsters.
Most of the west coast fishing seems to be diving.
One thing about trapping is that it's harder to do illegaly.
To have a lobster pot, you have to bait it and leave it on the bottom for a day. The pot then has to have a visible buoy attached to it floating on the surface so you can find it in your boat and pick up the pot. The buoy is going to be sitting around out there all day. Also, somebody ELSE who is also illegal can simply come by and steal the lobsters from the pot themselves. And since YOU'RE using a pot illegally, you can't exactly contact the game warden to complain about someone stealing lobsters from your illegal lobster pot.