lets be honest here, if the dogs were not used as bait, they would die from starvation on that island. I do think that the practice the way it was described in the article is downright wrong but if they want to shoot the dogs and use them as bait, there should not be a problem with it (think of them as using rats for bait, same basic principal, just a bit larger). These dogs are unfortunately vermin on that island and you must keep in mind that they are killing many native species in one of the most biologically diverse islands in the world. this is a way to take care of that problem and help to support the villagers and fishermen.
as far as the picture goes, do you think that a stray dog that was just tossed off the side of a boat with a hook in its mouth would have such a nice coat and be wearing a collar or be a pure breed golden retriever? Definitely a fake which should make you question the validity of this story.