Monday, 2 April 2012

Skipjack Tuna/aku/arctic bonito/mushmouth/oceanic bonito/striped tuna/victor fish


Name
The skipjack tuna, Katsuwonus pelamis, is a medium-sized perciform fish in the tuna family, Scombridae. It is otherwise known as the aku, arctic bonitomushmouth, oceanic bonito, striped tuna, or victor fish. It grows up to 1 m (3 ft) in length. 
Location
Algeria, Amer Samoa, Andaman Is, Angola, Anguilla, Antigua Barb, Argentina, Aruba, Ascension I. Australia, Bahamas, Bangladesh, Barbados, Belgium, Belize, Benin, Bermuda, Br Ind Oc Tr, Br Virgin Is, Brazil, Brunei Darsm, Cambodia, Cameroon, Canada, Canary Is, Cape Verde, Cayman Is, Chagos Is, Chile, China Main, Christmas I. Cocos Is, Colombia, Comoros, Congo Dem Rep, Congo Rep, Cook Is, Costa Rica, Cote d'Ivoire, Cuba, Curaçao I. Djibouti, Dominica, Dominican Rp, East Timor, Ecuador, El Salvador, Eq Guinea, Fiji, Fr Guiana, Fr Polynesia, FranceGabon, Galapagos Island, Gambia, Germany, Ghana, Gibraltar, Grenada, Guadeloupe, Guam, Guatemala, Guinea, GuineaBissau, Guyana, Haiti, Hawaii, Honduras, Hong Kong, India, Indonesia, Iran, Ireland, Isle of Man, Italy, Jamaica, Japan, Johnston I. Jordan, Kenya, Kermadec Is, Kiribati, Korea Rep, Liberia, Madagascar, Madeira Is, Malaysia, Maldives, Malta, Marquesas Is, Marshall Is, Martinique, Mauritania, Mauritius, Mexico, Micronesia, Monaco, Montserrat, Morocco, Mozambique, Myanmar, N Marianas, Namibia, Nauru, NethAntilles, Netherlands, New Caledonia, New Zealand, Nicaragua, Nigeria, Niue, Norfolk I. Norway, Ogasawara Is, Oman, Pac Is Tr Tr, Pakistan, Palau, Panama, Papua N Guin, PeruPhilippines, Portugal, Puerto Rico, Reunion, Ryukyu Is, Saint Lucia, Samoa, Sao Tome Prn, Senegal, Seychelles, Sierra Leone, Singapore, Slovenia, Solomon Is, Somalia, South Africa, Spain, Sri Lanka, St Helena, St Kitts Nev, St Vincent, Suriname, Sweden, Syria, Tahiti, Taiwan, Tanzania, Thailand, Togo, Tokelau, Tonga, Trinidad Tob, Tuamotu Is, Turkey, Turks Caicos , Tuvalu, UK, UK Engld Wal, Untd Arab Em, Uruguay, US Minor Is, US Virgin Is, USA, Vanuatu, Venezuela, Viet Nam, Wake I. Wallis Fut I, Yemen.

Diet
Favored fishes in their diet are herrings, mackerels, lanternfish, flying fish, squid, butterfish, sand launce, sardines, needlefish, jellyfish and crustaceans. cannibalism is common.


Habitat
The skipjack tuna is an epipelagic fish, occurring in waters ranging in temperature from 58-86°F (14.7 to 30°C) Exhibit a strong tendency to school into shoals based upon their size in surface waters with birds, drifting objects, sharks, whales and may show a characteristic behavior like jumping, feeding, foaming during the day, diving down to depths of ~260m during the night.
Spawning Season/Ground
Larvae restricted to waters with surface temperatures of 15°C to 30°C. Maturing at 2 to 3 years old (40cm in length) Eggs and larvae are pelagic, Skipjack can have a life span as long as 8 - 12 years.

Appearance
The Skipjack Tuna is characterized by its "tuna-like" appearance that is dark blue on its back and silver on its flank and belly. It has a series of 4 - 6 horizontal-diagonal stripes along its upper sides, and no spots between the pelvic and pectoral fins. The Skipjack Tuna might be confused with the Black Skipjack, Eurhynnus lineatus which has 5 - 6 horizontal stripes along its upper sides but has distinguishing black spots or botches between its pelvic and pectoral fins; the Striped Bonito, Sarda orientalis 8 - 11 broken horizontal stripes along its sides, and no spots, and the Eastern Pacific Bonito, Sarda chilensis 5 - 6 oblique dark stripes on upper back and no spots.

Predators
Silvertip sharks, Whaler sharks, Dolphinfish, Black Marlin, Atlantic blue marlin, Shortfin Mako shark, Wahoo, Indo-Pacific blue marlin.


Method of catching
Also taken by trolling on light tackle using plugs, spoons, feathers, or strip bait Trolling at speeds of around 3-5 mph in the open ocean waters with skirted lures is the most productive method with blue, pink, white or orange small skirt lures works all the time also throwing small live baitfish near a floating object in the water causes them to go into a feeding frenzy.

Edible
It is an important commercial and game fish, usually caught using purse seine nets, and is sold fresh, frozen, canned, dried, salted, and smoked. Skipjack is considered to have "moderate" mercury contamination. As a result, pregnant women are advised against eating large quantities.

*feel free to leave a comment below.

1 comment:

  1. Please Telus how to prepare and cook this fish.

    ReplyDelete