it's a cold day and i feel like some flames may do me good. i am all for shark feeding. there are only 2 reasons that could speak against it: if it harms sharks and/or if it harms humans
does it harm shark?
no it does not. no one disputes that it alters behaviour. so what? that's only an issue if it altered their behaviour in a detrimental way. yes, they get trained to listen for a certain boat engine and they will learn to feed on some scraps that are offered to them through various methods ranging from chum to hand feeding. however, they do not come to rely on getting fed as they are not fed any substantial amounts of fish. the food is a teaser not a meal. they also become less shy towards humans. that does not hurt the sharks either (more about the humans below). Finally, the shark populations exposed to feeding are tiny.
on the other hand shark feeding benefits sharks greatly. let's face it, successful shark feeding operations have contributed greatly to the protection of sharks because economic interest is the most persuasive argument in preserving shark populations. the only reason that bans on shark fishing have been imposed in parts of the bahamas is the attraction of shark feeding. also, do you really think the great white would be protected in south africa and australia without the exposure it got through cage diving? many cage diving operations used to fish for sharks until they saw where the real money was. these are just the most obvious and tangible impacts. furthermore, shark feeding changes the whole perception of sharks even for non-participants. they hear that people do this and it obviously makes them at least question the wide held belief that sharks will kill anyone who gets near to them.
Does it harm humans?
first of all, humans that participate in shark feeding do so of their own will and as such accept the risks. they are in no position to complain if something happened. but guess what, despite all the people saying one day someone will get hurt it has not happened. yes, it is true that some feeders have suffered bites but that's a result of how the food is presented and not of shark feeding per se. hand feeding definitely carries risk and there are other ways to attract the sharks without humans directly handing it out e.g. the chumsicle at walkers, chum slicks, crates with fish parts... the reality is no participants have suffered any significant injuries much less did anyone get maimed or killed (to my knowledge - i look forward to having you present me with facts to the contrary) . and this despite thousands of shark feedings with tens of thousands of divers over many years. this is not a new practice after all although it has certainly grown enormously over the past 10 years. therefore, the nay sayers can hardly say there is not enough data to prove that it is safe.
have you been to a shark feed? no doubt the sharks are not very shy around the divers but i have never seen a shark approach a diver aggressively for food on a shark feed (unlike spearfisherman who actually carry food on them. that's a different issue. it is true that in areas with spearfishing sharks can get accustomed to the practice, lose their fear of humans and try to compete for the catch. the spearfisherman will then have to decide if he wants to give up the fish or take out the shark).
what about the risks for others not participating in the shark feeds? well, undoubtedly regular feeding at a site may increase the number of sharks in the vicinity. i have not seen evidence that they are more aggressive towards humans though. there is not the tiniest shred of evidence that shark attacks increased on sites with regular feedings.
the botom line: shark feeding does sharks more good than harm and there exists no evidence of a threat to humans. i don't care much why people participate e.g. overcome their fear in a controlled environment, thrill seeking, bravado, photo op, love of the animal, chance to see a creature they could not encounter otherwise... the fact is, the greater the interest in shark feeds the less interest in shark fin soup. don't get me wrong, i also prefer to dive with sharks in a more natural setting but it is getting more and more difficult to find the buggers. in our waters you used to see them all the time 15 years ago. today you basically see none.
bring on those flames