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Bluefin tuna feed primarily on other fish, including herring, anchovies, sardines and mackerel, according to the Office of Protected Resources. Young bluefin tuna also eat some crustaceans. The bluefin tuna is the largest of the tuna species, and it is an important large predator in the Atlantic Oce


Bluefin tuna fishing season is year round. Certain months are better than others for fishing for bluefin tuna, depending on the region and the species.


Bluefin tuna is expensive because it’s in such high demand in Japan. According to “Why Tuna's Both Cheap and Expensive, Plentiful and Very Endangered,” a bluefin tuna caught off Long Island goes straight to Japan, where a 500-pound fish can sell for as much as $1.8 million.


As of 2014, the largest bluefin tuna ever caught measured 13 feet and weighed 1,496 pounds. The fish was caught by Ken Fraser on Oct. 26, 1979 off the coast of Nova Scotia.


Tuna is a healthy fish to eat, to a certain degree. As a fatty, cold-water fish, it is rich in omega-3 fatty acids. These are fats that help regulate cholesterol levels and protect against cardiovascular disease.


Tuna live in the open sea of oceans worldwide, although specific zones are dependent on species. The bluefin tuna, for example, lives in tropical and temperate waters of the Atlantic, the Pacific and the Mediterranean. The bigeye tuna lives in the previously mentioned areas with the exception of the


Canned tuna, like all canned meats that are not kept in a refrigerator before being opened, are considered non-perishable items. Despite having a use-by date, if the can does not show signs of denting, rusting, leaking or bulging, the tuna is generally safe to eat.


According to the National Oceanic and Atmospheric Administration, there are five species of tuna. Some species live in the Pacific Ocean, while others are native to the Atlantic.


Besides humans, tuna fish are eaten by sharks, rays, larger tuna and billfish, such as marlins. Juvenile yellowfin tuna are often prey for seabirds and fish, such as wahoo. Large, adult tuna can only be handled by predators, such as sharks, marlins and toothed whales similar to false killer whales.


Tuna is a healthy source of lean protein for dogs, as long as the correct amount is administered in the correct way, according to The Nest. It is recommended to feed a dog canned tuna packed in water.