Is Blackfish kosher?
Yes — Blackfish is kosher under Jewish dietary law.
Blackfish has fins and scales, which are the two requirements for kosher fish under Jewish dietary law (Leviticus 11:9-12).
About Blackfish
See: Carps, Wrasses The tautog (Tautoga onitis), also known as the blackfish, is a species of wrasse native to the western Atlantic Ocean from Nova Scotia to South Carolina. This species inhabits hard substrate habitats in inshore waters at depths from 1 to 75 m (5 to 245 ft). It is currently the only known member of its genus. Barlett (1848) wrote, "[Tautaug] is a Native American word, and may be found in Roger Williams' Key to the Indian Language." The name is from the Narragansett language, originally tautauog (pl. of taut). It is also called a "black porgy" (cf. Japanese black porgy), "chub" (cf. the freshwater chub), "oyster-fish" (in North Carolina) or "blackfish" (in New York/New Jersey, New England). The tautog (Tautoga onitis), also known as the blackfish, is a species of wrasse native to the western Atlantic Ocean from Nova Scotia to South Carolina. This species inhabits hard substrate habitats in inshore waters at depths from 1 to 75 m (5 to 245 ft). It is currently the only known member of its genus. Barlett (1848) wrote, "[Tautaug] is a Native American word, and may be found in Roger Williams' Key to the Indian Language." The name is from the Narragansett language, originally tautauog (pl. of taut). It is also called a "black porgy" (cf. Japanese black porgy), "chub" (cf. the freshwater chub), "oyster-fish" (in North Carolina) or "blackfish" (in New York/New Jersey, New England). Description Tautog are brown and dark olive, with white blotches, and have plump, elongated bodies. They have a typical weight of 0.5 to 1.5 kg (1 to 3 lb) and reach a maximum length and weight of 90 cm (3 ft) and 13.1 kg (28 lb 14 oz), respectively. Tautog have many adaptations to life in and around rocky areas. They have thick, rubbery lips and powerful jaws. The backs of their throats contain a set of teeth resembling molars. Together, these are used to pick and crush prey such as mollusks...
Source: kosherfish.co/kosher-fish-list (snapshot 2025-12-19); Wikipedia (CC BY-SA 3.0); Wikipedia (CC BY-SA 3.0)