Spearfishing makes fishes more timid. Fisheries scientists have studied the response of fish in the Mediterranean Sea to spearfishing. The fish are able to finely discriminate if divers carry a speargun or not. They adjust their escape behavior and keep a safe distance outside the shooting range. This is good for the fish and a challenge for the spearfisher. Source 5d.
We so underestimate the intelligent life around us. At least this way some of the marine life can live without having a spear go through them.
International Level: Politics 101 / Political Participation: 2 0.2%