Leatherjacket fish and shrimp, often in company with larger predatory species. Traditionally, the leather jacket has not been eaten, but recently, with large-scale farming of the fish, it has become common at market. The fish has a mild, oily taste similar to Spanish mackerel or bluefish. It has occasionally been the prey to Blue Swimmer Crab, as juvenile fish in sea grass beds. Leatherjacket fish The leatherjacket fish or leather jack, "Oligoplites saurus", is a species of jack in the family Carangidae. Leather jack may also refer to other members of the Carangidae, such as the pilot fish. The largest are about
Blue whale Naturae" of 1758, would have known this and may have intended the ironic double meaning. Herman Melville called this species "sulphur-bottom" in his novel "Moby-Dick" (1851) due to an orange-brown or yellow tinge on the underparts from diatom films on the skin. Other common names for the blue whale have included "Sibbald's rorqual" (after Sibbald, who first described the species), the "great blue whale" and the "great northern rorqual". These names have now fallen into disuse. The first known usage of the term "blue whale" was in Melville's "Moby-Dick", which only mentions it in passing and does not specifically attribute