Sharks are not all that uncommon in Irish waters, in fact certain species are quite abundant on the far west coast of the British Isles. That doesn’t mean there’s that much of a threat though - plenty of shark species are pretty harmless and the chance of an attack is extremely rare in this corner of the world. They can happen however, they’re a wild and unpredictable animal that can be provoked after all. On Saturday evening, a fisherman from Belfast sustained very bad injuries to his arm, after being bitten by a Blue Shark.   Blue Shark numbers vary in Ireland