I can't believe anyone would kill a whale shark. This is just disgusting to me although I know others don't have a problem with it.
Whale sharks are common in our northern waters. They wouldn't be killed by Australian fishermen because there's no market for that sort of flesh.
One of the most common sorts of shark flesh found in fish and chip shops here is Mako. I don't like shark meat which is usually sold as 'flake'. I wouldn't say the texture is like that or swordfish, although it's probably better for pregnant women than swordfish.