Pelagic fish Atlantic Ocean, the Gulf of Mexico and the Mediterranean Sea. The term highly migratory species (HMS) is a legal term which has its origins in Article 64 of the United Nations Convention on the Law of the Sea (UNCLOS). The highly migratory species include: tuna and tuna-like species (albacore, Atlantic bluefin, bigeye tuna, skipjack, yellowfin, blackfin, little tunny, Pacific bluefin, southern bluefin and bullet), pomfret, marlin, sailfish, swordfish, saury and oceangoing sharks, dolphins and other cetaceans. Essentially, highly migratory species coincide with the larger of the "large pelagic fish", discussed in the previous section, if cetaceans are added and some
USS Skipjack (SS-184) coast of Timor which she reconnoitered and photographed. She also severely damaged an enemy oiler. The submarine returned to Fremantle for refit on 4 September. "Skipjack"’s fifth war patrol was conducted off Timor Island, Amboina, and Halmahera. On 14 October, while patrolling south of the Palau Islands, the submarine torpedoed and sank the 6,781-ton cargo ship, "Shunko Maru" (). Following a depth charge attack by a Japanese destroyer, the submarine returned to Pearl Harbor on 26 November. "Skipjack"’s sixth, seventh, and eighth war patrols were unproductive. But, during her ninth, conducted in the Caroline Islands and Mariana Islands areas, she