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 (SSN-585) On the journey, she passed so close to the Soviet port that the officers could look through a periscope and see the port only 30 or 40 yards (27 to 37 meters) away. Upon entering the canal, crewmen saw one of "Skipjack"s officers turn off a tracing mechanism so that there would be no written record of the action. Upon returning from this mission, "Skipjack" spent the remainder of 1960 in a restricted yard availability and upkeep. "Skipjack" commenced her 1961 operations by participating in two weeks of type training followed by anti-submarine warfare exercises through August, visiting Mayport, Florida,