such as herring (Clupea harengus) , salmon (Salmo salar) , capelin (Mallotus villosus) and sand lance (Ammodytes americanus) as well as mackerel (Scomber scombrus) , pollock (Pollachius virens) and haddock (Melanogrammus aeglefinus) in the North Atlantic. Krill and copepods have been recorded from Australian and Antarctic waters. Humpbacks hunt by direct