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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), which ...
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.
The Pacific bluefin tuna (Thunnus orientalis) is a predatory species of tuna found widely in the northern Pacific Ocean, but it is migratory and also recorded as a visitor to the south Pacific. [ 3 ] [ 4 ]
The more you know about bluefin tuna, the better equipped you are to make decisions about whether to consume it. Skip to main content. News. 24/7 help. For premium support please call: 800-290 ...
Albacore tuna is the only species that can be marketed as "white meat tuna". The canning industry uses this label to differentiate canned albacore from other types of tuna. [22] From 2010 to 2013, a study by Oceana, an ocean preservation organization, tested over 114 samples of tuna, and found that 84% of the white tuna samples were actually ...
Farm-raised tuna generally have a higher fat content than wild tuna. A one-metre tuna needs about 15 kg (33 lb) of live fish to gain 1 kg (2 lb) of fat, and about 1.5 to 2 tonnes of squid and mackerel are needed to produce a 100 kg (220 lb) bluefin tuna. [ 48 ]
Fishes that live in the ocean can be carnivores, herbivores, or omnivores. [4] Herbivores in the ocean eat things such as algae and flowering seagrasses. Many herbivores' diets consist of primarily algae. Most saltwater fish will eat both macroalgae and microalgae. Many fish eat red, green, brown, and blue algae, but some fish prefer other types.
Wild sockeye salmon is higher in vitamin D, says Largeman-Roth, providing 14 micrograms (71% of the daily value) per serving, whereas tuna provides 2 micrograms.