TUNA

Tuna are remarkable and impressive wild animals. These extraordinary marine animals are also integral to the diet of millions of people and are one of the most commercially valuable fish. It’s four types of species: skipjack alone account for more than half of the global catch of tuna, followed by yellowfin, bigeye, and albacore.

Tuna is known for being a rich source of protein, omega-3 fatty acids, vitamins, and minerals, making it an excellent choice for maintaining a healthy diet.


-Types of tunas and their habitats-


Yellowfin

This type of fish tuna, also known as Ahi tuna, is a species of tuna found in tropical and subtropical waters around the world. Yellowfin tuna are torpedo-shaped with dark metallic blue backs, yellow sides, and a silver belly Yellowfin tuna are a relatively large species of tuna.


Dog Tooth

The dogtooth tuna, is also known as the dog toothed tuna or the white tuna, is a large predatory fish found in tropical and subtropical waters around the world. It belongs to the Scombridae family, which includes other tuna species such as bluefin, yellowfin, and skipjack.

Dogtooth tuna are highly prized by sport fishermen and commercial fishermen alike for their size and fighting ability. They are also considered a delicacy in many parts of the world and are often served raw as sashimi or grilled as a steak.


Bluefin

Bluefin are the largest tunas and can live up to 40 years. They migrate across all oceans and can dive deeper than 3,000 feet. Bluefin tuna are made for speed: built like torpedoes, have retractable fins and their eyes are set flush to their body. They are tremendous predators from the moment they hatch, seeking out schools of fish like herring, mackerel, and even eels. They hunt by sight and have the sharpest vision of any bony fish. There are three species of bluefin: Atlantic (the largest and most endangered), Pacific, and Southern. Most catches of the Atlantic bluefin tuna are taken from the Mediterranean Sea, which is the most important bluefin tuna fishery in the world

The Atlantic bluefin tuna is currently listed as endangered by the International Union for Conservation of Nature (IUCN) and is managed by a number of international organizations, including the International Commission for the Conservation of Atlantic Tunas (ICCAT).


Big Eye

Bigeye tuna are generally the size of yellowfin, and smaller than bluefin. They are long and streamlined, have dark metallic blue on their backs and upper sides, and are nearly white on their lower sides and belly. They can live as long as 15 years. Bigeye are found in the subtropical and tropical areas of the Atlantic (but not in the Mediterranean), Indian and Pacific Oceans.

their large eyes

They are particularly known for their large eyes, which allow them to see in low light conditions and hunt effectively at night. They are also capable of diving to depths of up to 500 meters (1,600 feet) to catch their prey.


Albacore

Albacore is a species of tuna found in temperate and tropical waters worldwide. It is one of the smaller tuna species, with adults typically measuring between 2 and 3 feet (60 to 90 cm) in length and weighing up to 80 pounds (36 kg). Albacore tuna is also known as “white tuna” due to its light-colored flesh. Albacore is one of the smaller tuna species, reaching sizes between skipjack and yellowfin. They are bullet-shaped with a dark blue back and lighter blue-gray sides and belly. Albacore tuna also have very long pectoral fins and live for around 12 years. They tend to travel in single species schools, without the level of mixing as seen in other species and migrate throughout all ocean waters and the Mediterranean.


Skipjack

Skipjack are the smallest and most abundant of the major commercial tuna species. They have a streamlined body that is mostly without scales. Their backs are dark purple-blue and their lower sides and bellies are silver with four to six dark bands. Skipjack can live as long as eight to 10 years. They are found mainly in the tropical areas of the Atlantic, Indian and Pacific Oceans, with the greatest abundance seen near the equator. Skipjack usually swim near the surface at night and can dive up to 850 feet during the day. Large schools of adult skipjack tuna often mix with juvenile yellowfin and bigeye tuna. They can breed year-round.


Blackfin

The Blackfin tuna is found in the western Atlantic Ocean and Gulf of Mexico. They are smaller than other tuna species, with adults typically measuring between 1 and 2 feet (30 to 60 cm) in length and weighing up to 30 pounds (14 kg). Blackfin tuna are named for their distinctive black fins, which are darker than the rest of their body.

Blackfin tuna are found in offshore waters, often swimming near the surface in schools. They are a highly migratory species. Blackfin tuna are found in both temperate and tropical waters and prefer temperatures between 68- and 86-degrees Fahrenheit (20 and 30 degrees Celsius).


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Longtail

This type of tuna, also known as northern bluefin tuna, is a species of tuna found in the Indo-Pacific region. Longtail tuna are a relatively small species of tuna, with adults typically measuring between 1 and 3 feet (30 to 90 cm) in length and weighing up to 22 pounds (10 kg).

Longtail have a distinctive elongated body shape, which gives them their name. They are a fast-swimming and highly migratory species, often traveling long distances in search of food and spawning grounds. Longtail tuna are found in a wide range of water temperatures, from tropical to temperate regions.

This type of fish is commercial and recreational fish species. You commonly caught them using rod and fishing reels Longtail tuna are used in sushi dishes and other culinary applications.


Bonitos

Bonito is a common name given to a group of several species of tuna that are related to the mackerel family. The most commonly known species of bonito tuna are the Atlantic bonito (Sarda sarda) and the Pacific bonito.

They are a relatively small species of tuna, with adults typically measuring between 1 and 2 feet (30 to 60 cm) in length and weighing up to 15 pounds (7 kg). They have a dark blue green to greyish-blue color on their back and upper sides, with silver-white sides and a white belly.

Bonito tuna are a fast-swimming and highly migratory species, often traveling in schools in search of food and spawning grounds. They are found in a wide range of water temperatures, from tropical to temperate regions.


Responsible management and sustainable fishing practices are crucial to ensure the survival of these valuable species and the health of our oceans. By working together to protect and manage tuna populations, we can help ensure that these important fish species continue to thrive for generations to come.

ILEGAL FISHING

Illegal fishing of Atlantic bluefin tuna is a big problem and the fishery has been plagued by lack of enforcement. Tuna “ranching” pens that are used to temporarily house and fatten wild fish can serve as a means to launder illegal fishing.

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