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Yellowfin Tuna

 
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The yellowfin tuna (Thunnus albacares) is a type of tuna
Tuna

Tuna are several species of ocean-dwelling fish in the family Scombridae, mostly in the genus Thunnus. Tunas are fast swimmers?they have been clocked at 70 km/h ?and include several species that are warm-blooded....
 found in open waters of tropical and subtropical sea
SEA

See also: Sea and seasThe three-letter acronym SEA may refer to:People/organizations/businesses*Scientists and Engineers for America, a pro-science political advocacy group....
s worldwide. It is an epipelagic fish ranging in the top 100 m (330 feet) of the water column. Reported sizes have ranged as high as 239 cm (94 inches) in length and 200 kg (440 lb) in weight. Also known as ahi tuna, from its Hawaiian
Hawaiian language

The Hawaiian language is an Austronesian languages that takes its name from Hawaii , the largest island in the tropical North Pacific archipelago where it developed....
 name ahi, yellowfin is becoming a popular replacement for the severely depleted supplies of bluefin tuna
Bluefin tuna

Bluefin tuna may mean any of several species of tuna:* Northern bluefin tuna Thunnus thynnus* Southern bluefin tuna Thunnus maccoyii...
.

The second dorsal fin
Dorsal fin

A wikt:dorsal fin is a fin located on the backs of some fish, whales, dolphins, and porpoises, as well as the ichthyosaurs. Its main purpose is to stabilize the animal against rolling and assist in sudden turns....
 and the anal fin are both bright yellow, thus the common name, and can be very long in mature specimens, as are the pectoral fins.






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Encyclopedia


The yellowfin tuna (Thunnus albacares) is a type of tuna
Tuna

Tuna are several species of ocean-dwelling fish in the family Scombridae, mostly in the genus Thunnus. Tunas are fast swimmers?they have been clocked at 70 km/h ?and include several species that are warm-blooded....
 found in open waters of tropical and subtropical sea
SEA

See also: Sea and seasThe three-letter acronym SEA may refer to:People/organizations/businesses*Scientists and Engineers for America, a pro-science political advocacy group....
s worldwide. It is an epipelagic fish ranging in the top 100 m (330 feet) of the water column. Reported sizes have ranged as high as 239 cm (94 inches) in length and 200 kg (440 lb) in weight. Also known as ahi tuna, from its Hawaiian
Hawaiian language

The Hawaiian language is an Austronesian languages that takes its name from Hawaii , the largest island in the tropical North Pacific archipelago where it developed....
 name ahi, yellowfin is becoming a popular replacement for the severely depleted supplies of bluefin tuna
Bluefin tuna

Bluefin tuna may mean any of several species of tuna:* Northern bluefin tuna Thunnus thynnus* Southern bluefin tuna Thunnus maccoyii...
.

The second dorsal fin
Dorsal fin

A wikt:dorsal fin is a fin located on the backs of some fish, whales, dolphins, and porpoises, as well as the ichthyosaurs. Its main purpose is to stabilize the animal against rolling and assist in sudden turns....
 and the anal fin are both bright yellow, thus the common name, and can be very long in mature specimens, as are the pectoral fins. The main body is very dark metallic blue, changing to silver on the belly, which has about 20 vertical lines.

Yellowfins tend to school with fishes of the same size, including other species of tuna, and larger fish. They are often seen with dolphin
Dolphin

File:Bottlenose_Dolphin_KSC04pd0178.jpgDolphins are marine mammals that are closely related to whales and porpoises. There are almost forty species of dolphin in seventeen genus....
s, porpoise
Porpoise

Porpoises are small cetaceans of the family Phocoenidae; they are related to whales and dolphins. They are distinct from dolphins, although the word "porpoise" has been used to refer to any small dolphin, especially by sailors and fishermen....
s, whale
Whale

Whales are marine mammals of order Cetacea which are neither dolphinsmembers, in other words, of the families Oceanic dolphin or River dolphinnor porpoises....
s and whale shark
Whale shark

The whale shark, Rhincodon typus, is a slow moving filter feeder shark that is the largest living fish species. It can grow up to 12.2 m. in length and can weigh up to 13.6 tonnes ....
s. Yellowfins eat other fish, crustacean
Crustacean

Crustaceans are a large group of arthropods, comprising almost 52,000 described species , and are usually treated as a subphylum . They include various familiar animals, such as crabs, lobsters, crayfish, shrimp, krill and barnacles....
s, and squid
Squid

Squid are marine cephalopods of the order Teuthida, which comprises around 300 species. Like all other cephalopods, squid have a distinct head, Symmetry #Bilateral_symmetry, a mantle , and cephalopod arms....
.

Commerce

Commercial fisheries catch yellowfin tuna with encircling nets (purse seines) and with longlines. The fish are mainly sold in frozen or canned form, but are also popular as sashimi
Sashimi

Sashimi is a Japanese cuisine primarily consisting of very fresh raw seafood, sliced into thin pieces about 2.5cm wide by 4.0cm long by 0.5 cm thick, but dimensions vary depending on the type of item and chef, and served with only a dipping sauce , depending on the fish, and a simple garnish such as perilla and shredded daikon radish....
.

Sport and food

Yellowfin tuna are a popular sport fish in many parts of their range and are prized for their speed and strength when fought on rod and reel as well as for their table qualities.

Culinary uses

According to the Hawaii Seafood Buyers Guide 'Yellowfin tuna is widely used as raw fish dishes, especially sashimi
Sashimi

Sashimi is a Japanese cuisine primarily consisting of very fresh raw seafood, sliced into thin pieces about 2.5cm wide by 4.0cm long by 0.5 cm thick, but dimensions vary depending on the type of item and chef, and served with only a dipping sauce , depending on the fish, and a simple garnish such as perilla and shredded daikon radish....
. This fish is also excellent for grilling. Yellowfin is often served seared or rare.

Yellowfin buyers often recognize two grades, "Sashimi grade" and "other", although there are variations in the quality of "other" grades.

In terms of whether the yellowfin tuna fishing industry is sustainable, the jury is out. The Audubon's Seafood Guide (a guide for what types of marine food products are not eco-friendly) lists yellowfin tuna that have been troll-caught as "OK" but those that have been long-line caught as "Be Careful".