The blue grenadier, hoki, blue hake, New Zealand whiptail, whiptail or whiptail hake, Macruronus novaezelandiae, is a merluccid hake of the family Merlucciidae found around southern Australia and New Zealand at depths of between 10 and 1,000 m (33 and 3,281 ft). It feeds in midwater on small squids, crustaceans, and fish. Its length is between 60 and 120 cm (24 and 47 in). It is a slender, silvery fish similar in appearance to the gemfish. The meat of the fish is white and almost always sold in filets.
The hoki is one of the species used in McDonald's Filet-O-Fish, Fish Fingers and McFish sandwiches. It was previously served at Long John Silver's and Denny's restaurants in the United States, and continues to be served at Denny's in New Zealand.
The Blue grenadier is a very important commercial species in Australia. They are mostly caught in the south east, off southern New South Wales, Victoria, Tasmania and South Australia and are considered very good eating, particularly when fresh.
The blue grenadier is the subject of a large commercial fishery industry in New Zealand, which has been certified by the Marine Stewardship Council as well-managed and sustainable in March 2001. New Zealand has established a fishing quota of about 100,000 tons. The first MSC certification ended in April 2007. Reassessment of the certification commenced in early 2005 and finished in October 2007. A 2009 New York Times article raised questions over the sustainability of blue grenadier fishing practices around New Zealand, though its conclusions were disputed by New Zealand representatives. However, recent quotas on catches have declined by nearly two-thirds from 275,000 to 100,000 tons.
In 2010, Greenpeace International has added the blue grenadier (hoki) to its seafood red list. "The Greenpeace International seafood red list is a list of fish that are commonly sold in supermarkets around the world, and which have a very high risk of being sourced from unsustainable fisheries."
In September 2013, as New Zealand Hoki, it continued to appear on the MSC's list of sustainable fish.
- Broad, William (September 9, 2009), From Deep Pacific, Ugly and Tasty, With a Catch, New York Times
- Vasquez, Michael (August 24, 2009), Fish or Fake? DNA Researcher Puts the 'Filet-O-Fish' to the Test, Miami Herald
- Bray, Dianne. "Blue Grenadier, Macruronus novaezelandiae". Fishes of Australia. Retrieved 26 August 2014.
- "Meet the fishers." Marine Stewardship Council. No date. Accessed 2009-09-10
- Broad, William (September 9, 2009), From Deep Pacific, Ugly and Tasty, With a Catch, The New York Times
- Gaines, Richard (September 22, 2009), New York Times' report on food fish raises New Zealand industry's ire, Gloucester Daily Times
- Greenpeace International Seafood Red list. No date. Accessed 2012-03-11
- "Sustainable Seafood Shopping." Marine Stewardship Council. No date. Accessed 2013-09-28
- Froese, Rainer and Pauly, Daniel, eds. (2006). "Macruronus novaezelandiae" in FishBase. April 2006 version.
- Ayling, Tony & Cox, Geoffrey (1982), Collins Guide to the Sea Fishes of New Zealand, Auckland, New Zealand: William Collins Publishers, ISBN 0-00-216987-8