Tuna

Tuna

Tuna is a large saltwater fish of the family skumryev living in subtropical and tropical areas of the world ocean.

Description

The body of tuna has a fusiform dense structure that allows to develop high speed - 75 km/h, in turn, the lack of swim bladder (in most species) and the structure of the head made it difficult to find fish in a calm state, leading to a permanent move.

Among fish tuna belongs to the predators - the basis of its diet consists of cephalopods, crustaceans and small fish.

Habitat for tuna prefer as surface waters and great depths up to 200 meters.

Most of my life tuna spent on the move, chasing small fish. This active hunting predator noisy and recklessly, which makes it easy to detect its presence when choosing a location for fishing.

Usually tuna are found in small shoals, with the exception of captured specimens, preferring a solitary lifestyle (rare shoal of big tuna more than 5 individuals).

The types of tuna. Habitat

The tuna are 15 species of 5 genera:

  • Southern tuna (Allothunnus);
  • Macroelements (Auxis);
  • Small Tunas (Euthynnus);
  • Striped tuna (Katsuwonus);
  • Tuna (Thunnus)

Southern tuna (Allothunnus fallai) is the only representative of the genus, occurs in southern latitudes of the Pacific, Atlantic and Indian oceans. Maximum body length about a meter, record the weight of 13.7 kg.

Scombridae (Auxis rochei) and Mackerel tuna (Auxis thazard) is a relatively small species of tuna, reaching 50-60 cm Macroelements found in warm coastal waters of all oceans except the Atlantic. To dwell in macroelements prefer the near-surface layers that gather in large shoals. Maximum recorded weight - 1.7 kg.

The small Eastern tuna (Euthynnus affinis) - some specimens up to 1 m, the maximum registered weight of captured instance - 13,6 kg. habitat - coastal waters of the Pacific and Indian oceans with a water temperature of 18-29 °C. it is Found in large shoals of up to 5000 individuals.

Spotted tuna (Euthynnus alletteratus) - synonyms: small West tuna, small tuna, small Atlantic tuna. This is the most common species in the Atlantic ocean, are often found in the Mediterranean and Black seas. The temperature in the habitat - 24-30 °C and the Maximum was trophy - 16.5 kg.

Eastern tuna (Eastern tuna) - small black tuna, black skipjack. Found in the Eastern Pacific at depths to 40 m, with water temperature not below 23 °C. record the trophy of 9.1 kg., maximum body length - 84 cm

Bonito (Sarda sarda) - yellowfin tuna, common skipjack. Has important commercial importance, occupying a leading place in the catch among Tunas. Average dimensions - length up to 0.5 m, weight - 3 to 5 kg, of captured specimens can reach lengths of over a meter and weights up to 34.5 kg. Found in all oceans except the Arctic.

Albacore tuna (Thunnus alalunga) - albacore, white tuna. The most common in the waters of Pacific, Indian and Atlantic oceans. It reaches a length of 140 cm and weight of 60.3 kg.

Australian tuna (Thunnus maccoyii) is found in the temperate latitudes of the southern Hemisphere. The record was a weight of 260 kg and a length of 2.45 m.

Bigeye tuna (Thunnus obesus) - habitat - subtropical and tropical waters of the Pacific, Atlantic and Indian oceans. Adults reach lengths of 2.5 meters and weight up to 210 kg, the maximum recorded instance of 400 kg.

Pacific bluefin (Thunnus orientalis) is one of the largest representatives of the genus, maximum recorded length is 3 m and a weight of 450 kg. found in the Northern part Tikhogo ocean.

Bluefin tuna (Thunnus thynnus) - synonyms: bluefin tuna, blue, blue-fin, red. The largest representative of the genus, maximum weight is 684 kg., length - 4.6 meters. Found in the Atlantic ocean from Canada to Brazil in the Western part and from the Canary Islands to Norway in the Eastern Atlantic.

Yellowfin tuna (Thunnus albacares) is found in temperate and tropical latitudes of all oceans except the Mediterranean sea. Lives mainly in the open ocean on glubinah to 100 metres, although the young are kept in shoals in coastal waters, often mingling with other species of its size. A distinctive feature of this species is colored bright yellow dorsal fins. Record the dimensions of 2.4 metres and 200 kg.

Blacktip tuna (Thunnus atlanticus) - Atlantic or black tuna. Only found from Brazil to Cape cod. Unlike other tuna, in the diet of preference for shrimp and crabs. The size is rather modest, length up to 100 cm, weight up to 21 kg.

Longtail tuna (Thunnus tonggol) - habitat - subtropical and tropical waters of the Pacific and Indian oceans. Maximum weight of trophy fish - 35.9 kg., length - 145 cm

Fishing for tuna

All species of tuna are not only among the valuable commercial fish. but are widely popular among anglers.

Tuna fishing in the fascinating and engrossing - even experienced anglers will appreciate this large and powerful fish worthy opponent.

Caught tuna both trolling and drifting, using sea fishing rods with 30 lb test and higher and powerful baitcasting reel. All gear must have sufficient capacity for long playing big and active fish.

As bait for fishing for tuna is usually used with soft lures, wobblers (if fishing trolling) or small fish (when fishing with drifting).

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