Common minke whale this mistake during Foyn's whaling operations in the Varanger Fjord between 1868 and 1885." It has formerly been known as the little piked whale, the lesser or least rorqual, and the sharp-headed finner. American whalemen in the 19th century simply thought of them as "young finbacks" or a "Finback's calf", apparently under the impression that they were juveniles of their larger relative, the fin whale. They were also called zwergwal (German: "dwarf whale") or vågehval (Norwegian: "bay whale"). In Japan they are called koiwashi-kujira ("little sardine whale") or minku-kujira ("minke whale"). In Greenland they are known by the Danish name
Whale vocalization methods, such as signal processing, data mining, and machine learning techniques have been developed to detect and classify whale vocalizations. Whaling Captain Wm. H. Kelly was the first person known to recognize whale singing for what it was, while on the brig "Eliza" in the Sea of Japan in 1881. Whale vocalization Whale sounds are used by whales for different kinds of communication. The mechanisms used to produce sound vary from one family of cetaceans to another. Marine mammals, such as whales, dolphins, and porpoises, are much more dependent on sound for communication and sensation than are land mammals, because