100days-a-year:Look ,if you are not Amish or aboriginal and live with none of techno-junk we all have you have 0 room to point any fingers.How much poison is spewed into the environment to produce the computer you are now whining on,how many trees died to make your home,how many hydrocarbons are used to heat and cool that home,how many hydrocarbons are burnt taking you about your daily routine,how many streams are poisoned by the pesticides and nutrient run-off from the food you consume.If you eat meat,where exactly do think it comes from?Ever see a beef feedlot?Thousands of cattle eating and spewing methane into the air as well as effluent into the water table.Pork is the same as well as chicken.Then think of all the grains that have to be grown to feed those animals to a size where someone kills it for you because you don't have the moral courage to admit you are a carnivore.If you don't like spearfishing,fine then don't do it.Animals are animals,they get eaten,get over it.Whether it's a shark, a bear or micro-organisms everything organic goes back into circulation.And yes,properly managed fish populations can come back into enjoy healthy sustainable populations.Examples in my state are the Redfish and the Gulf stock of Groupers.Amazing when restrictions are placed on wanton commercial use fish stocks rebound.If more people killed thier own there would be less bycatch and waste.
Well, at one time, I would have agreed with your statement. I used to be a spear fisherman, but have since hung up my gun. The reason for doing so is that although by myself I do not cause significant damage to a reef, 100 of me every weekend would pretty much wipe out any big fish in the any reef. The point I guess is that we much look at the collective effect of spearfishing rather than what one spear fisherman can do. That's the main problem. IF you really want a challenge, spearfish without scuba. That might make sense.
As to eating fish, I have reduced my intake as well, for the same reason. Overfishing, in both recreational and commercial sense, have stressed out fish stocks to such as extent that they may not recover. If I have to eat fish, I will eat farmed fish. This has abolutely nothing to do with compassion for fish. It is simply to make sure that we continue to have fish in the future: to look at as well as to eat.