Twait shad Directive (1992) that list, respectively, species whose conservation requires the designation of special areas of conservation and that are subject to management measures." Twait shad The twait shad or twaite shad ("Alosa fallax") is a species of fish in the family Clupeidae. It is found in the eastern Atlantic Ocean and the Mediterranean Sea and is an anadromous fish which lives in the sea but migrates into fresh water to spawn. In appearance it resembles an Atlantic herring but has a row of six to ten distinctive spots on its silvery flanks. They become mature when three or more years
Australian herring Australian herring Arripis georgianus, known as the ruff, tommy ruff, Australian ruff or the Australian herring, is one of four Australasian fish species within the genus "Arripis". It closely resembles its 'cousin', the Australian salmon "Arripis trutta", although it grows to a smaller size. Like the other members of its genus, it is found in cooler waters around the southern coast of Australia. It is not biologically related to the herring family Clupeidae. Further vernacular names of this fish in Australia include bull herring, herring, rough, ruffies, sea herring, tommy, tommy rough and South Australian roughy. Ruff is the global