Fish out of trap

Near the ocean, far from sea under the deep waters there is a sea life surviving and eating upon each other. A whole team of invaders is lost on the island and has nothing to eat there except for the seafood. One of the team members is a vegetarian and cannot live off the meat. He has to find another but most important thing is that he can’t let the fishes die. So at night everybody set the traps in the water so the fishes get stuck in it and gets trapped and they can’t eat them in the morning. The person against all this has a chance to make the innocent creatures let live and don’t die. So he has the key to the setups of the traps. He wake up at night and arrange them in a way that fishes get to pass the trap alive and live without letting other people know. Vegetarian becomes a savior.