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The Atlantic bluefin tuna is a close relative of one of the other two bluefin tuna species, the Pacific bluefin tuna. The southern bluefin tuna , on the other hand, is more closely related to other tuna species such as yellowfin tuna and bigeye tuna , and the similarities between the southern and northern species are due to convergent evolution.
A tuna (pl.: tunas or tuna) is a saltwater fish that belongs to the tribe Thunnini, a subgrouping of the Scombridae family.The Thunnini comprise 15 species across five genera, [2] the sizes of which vary greatly, ranging from the bullet tuna (max length: 50 cm or 1.6 ft, weight: 1.8 kg or 4 lb) up to the Atlantic bluefin tuna (max length: 4.6 m or 15 ft, weight: 684 kg or 1,508 lb [citation ...
Standard weight equation for largemouth bass [1] and burbot [2] (fish). Standard weight in fish is the typical or expected weight at a given total length for a specific species of fish. Most standard weight equations are for freshwater fish species. Weight-length curves are developed by weighing and measuring samples of fish from the population.
A 276-kilogram bluefin tuna that was auctioned for 207 million Japanese yen (about $1.3 million) is carried into an Onodera sushi restaurant after the first tuna auction of the New Year in Tokyo ...
The bigeye tuna (Thunnus obesus) is a species of true tuna of the genus Thunnus, belonging to the wider mackerel family Scombridae. In Hawaiian, it is one of two species known as ʻahi, the other being the yellowfin tuna. [4] Bigeye tuna are found in the open waters of all tropical and temperate oceans, but not in the Mediterranean Sea.
The blackfin tuna (Thunnus atlanticus) is a species of tuna in the family Scombridae. It is occasionally referred to as the Bermuda tuna , blackfinned albacore , or deep bodied tunny . [ 3 ] They are the smallest tuna species in the genus Thunnus , generally growing to a maximum of 100 cm (39 in) in length and weighing 21 kg (46 lb).
The dogtooth tuna can reach a length of 190 to 248 centimetres (75 to 98 in) in males [3] [4] and a weight of 130 kilograms (287 lb). [5] The average length commonly observed is around 40 to 120 centimetres (16 to 47 in). They have 12 to 14 dorsal soft rays and 12 to 13 anal soft rays. The lateral line undulates strongly. [3]
Japan is both the biggest consumer and the leader in tuna farming research. [17] [18] Kinki University of Japan first successfully farmed already-hatched bluefin tuna in 1979. In 2002, they succeeded in breeding them, and in 2007, the process was repeated for a third generation. [19] [20] [21] This farm-raised tuna is now known as Kindai tuna ...