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
HMS Skipjack (1889) summoned nearby gunboats, and at 1 pm the next day, "Skipjack" spotted "U-16", but the submarine dived to safety and escaped. While the German official history records that "'Skipjack" fired on "U-16", this is not confirmed by "Skipjack"s log or official report of the incident. On 17 December 1914, "Skipjack" and the torpedo gunboats and were on passage from Lowestoft to Scapa Flow, when they were temporarily diverted to help to deal with a minefield laid off Scarborough during the Bombardment of Scarborough on 16 December. In early May 1917 "Skipjack" and three other torpedo gunboats were sent to sweep