![]() After these parts of the shark have been taken the remainder of the carcass may be thrown back into the sea or processed into fishmeal. The dorsal fin is also used to make shark fin soup. The flesh of blue sharks is not highly regarded, but the skin is used for leather and the liver for oil. Commercial and Recreational Fishing for Blue Sharksīlue sharks are caught commercially with several million being caught each year across the world. They have also been known to attack the nets of trawlers when they are full of fish and being hauled back on board the boat. A blue shark feeding on squid off the coast of Southern California.īlue shark will occasionally scavenge and have been spotted following trawlers and eating the bycatch and gutted fish which are thrown overboard. Although blue shark generally swim slowly to conserve energy they are capable of fast bursts of speed when hunting. They feed mostly mackerel and herring as well as squid and sometimes hunt larger fish such as cod, pollock and coalfish. In British waters they are generally found in the slightly warmer water of the south west of England and Ireland, although they can turn up elsewhere and have been sighted to the north of the British Isles. Blue sharks are thought to use the gulf stream and Atlantic gyres in order to conserve energy as they travel through the seas. They are nomadic and cover great distances as they migrate around the world. Blue shark can be either solitary or form into small groups. They are a pelagic species, generally swimming through deep water, looking for prey which consists of shoaling fish and squid. ![]() ![]() Blue shark is a large predatory species which has a wide distribution through all of the world’s seas and oceans, although they are absent from the arctic and polar regions.
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