Art-shark -
I am not sure when this planet's oceans became a barrel?? I do not currently spear, but am very interested in learning and will be soon enough. HOWEVER, I have to agree with Chad's comments whole-heartedly. I have been on the boat with those fishing H&L (myself included), and I have been in the water with spearos...I personally have seen way more collateral damage resulting from H&L, and more specifically the so-called "catch & release" method, which BTW, if not done right is more often than not murder (your term, not mine), in itself. Art-shark, do you pop the air out of the bladder when you release your catch? I certainly hope so. I took my son on a deep-sea offshore fishing trip recently, and I was quite disgusted at how many people were tossing their undersized fish back...only to have them die floating at the surface...not my definition of "catch & release" at all if the fish does not survive after the release. A spearo makes the decision to shoot or not to shoot an individual fish in front of him/her responsibly.
Art-shark, if you are a diver, and I can only assume that you are since you are on this board, then I am quite sure you have seen the same trash that I have seen on the sea floor that is quite obviously a by-product of H&L fishing boats. IMO, spearos are respecting the environment & eco system much more so than any catch & release fishing I have ever seen. Spearing is "selective fishing" as opposed to just yanking out of the water anything & everything that will bite your line...which BTW goes way beyond just "fish"...do you know how many sea turtles I have seen get hooked going after a tasty morsel?? More than a few. I have yet to see a spearo accidentally spear a turtle.
Yes, there are certainly a few idiots out there who are irresponsible and have no business being in the water period, let alone with a gun/spear...but on that note, there are those that should not be driving a motor vehicle (dui's), there are those that should not be hunting in the woods(chaney), and there are those that should not speak in an accusatory tone to others on a topic of which their knowledge is limited.
A person that will shoot a shark or any other creature for fun, speaks of that particular person's moral character...and just because that person descends with a gun, you are going to cry murder at the spearfishing community as a whole? C'mon now.