A tuna is a saltwater fish that belongs to the tribe Thunnini, a subgrouping of the Scombridae (mackerel) family. The Thunnini comprise 15 species across five genera, the sizes of which vary greatly, ranging from the bullet tuna up to the Atlantic bluefin tuna, which averages 2 m (6.6 ft) and is believed to live up to 50 years.
The Philippine Sea is a marginal sea of the Western Pacific Ocean east of the Philippine archipelago and the largest sea in the world, occupying an estimated surface area of 5 million square kilometers. The Philippine Sea Plate forms the floor of the sea. Its western border is the first island chain to the west, comprising the Ryukyu Islands in the northwest and Taiwan in the west. Its southwestern border comprises the Philippine islands of Luzon, Catanduanes, Samar, Leyte, and Mindanao. Its northern border comprises the Japanese islands of Honshu, Shikoku and Kyūshū. Its eastern border is the second island chain to the east, comprising the Bonin Islands and Iwo Jima in the northeast, the Mariana Islands in the due east, and Halmahera, Palau, Yap and Ulithi in the southeast. Its southern border is Indonesia's Morotai Island.
The albacore, known also as the longfin tuna, is a species of tuna of the order Scombriformes. It is found in temperate and tropical waters across the globe in the epipelagic and mesopelagic zones. There are six distinct stocks known globally in the Atlantic, Pacific, and Indian oceans, as well as the Mediterranean Sea. The albacore has an elongate, fusiform body with a conical snout, large eyes, and remarkably long pectoral fins. Its body is a deep blue dorsally and shades of silvery white ventrally. Individuals can reach up to 1.4 m in length.
Overfishing is the removal of a species of fish from a body of water at a rate greater than that the species can replenish its population naturally, resulting in the species becoming increasingly underpopulated in that area. Overfishing can occur in water bodies of any sizes, such as ponds, wetlands, rivers, lakes or oceans, and can result in resource depletion, reduced biological growth rates and low biomass levels. Sustained overfishing can lead to critical depensation, where the fish population is no longer able to sustain itself. Some forms of overfishing, such as the overfishing of sharks, has led to the upset of entire marine ecosystems. Types of overfishing include: growth overfishing, recruitment overfishing, ecosystem overfishing.
Big-game fishing, also known as offshore sportfishing, offshore gamefishing or blue-water fishing, is a form of recreational fishing targeting large game fish, usually on a large body of water such as a sea or ocean.
The Atlantic bluefin tuna is a species of tuna in the family Scombridae. It is variously known as the northern bluefin tuna, giant bluefin tuna [for individuals exceeding 150 kg (330 lb)], and formerly as the tunny.
The yellowfin tuna is a species of tuna found in pelagic waters of tropical and subtropical oceans worldwide.
National Geographic is an American pay television network and flagship channel owned by the National Geographic Global Networks unit of Disney Entertainment and National Geographic Partners, a joint venture between The Walt Disney Company (73%) and the National Geographic Society (27%), with the operational management handled by Walt Disney Television.
Marlin fishing is considered by some game fishermen to be a pinnacle of offshore game fishing, due to the size and power of the four marlin species and their relative rareness. Fishing for marlin captured the imagination of some sport fishermen in the 1930s, when well-known angler/authors Zane Grey, who fished for black, striped, and blue marlin in the Pacific, and Ernest Hemingway, who fished the Florida Keys, Bahamas and Cuba for Atlantic blue marlin and white marlin, wrote extensively about their pursuit and enthused about the sporting qualities of their quarry.
The southern bluefin tuna is a tuna of the family Scombridae found in open southern Hemisphere waters of all the world's oceans mainly between 30°S and 50°S, to nearly 60°S. At up to 2.5 metres and weighing up to 260 kilograms (570 lb), it is among the larger bony fishes.
The Pacific bluefin tuna is a predatory species of tuna found widely in the northern Pacific Ocean, but it is migratory and also recorded as a visitor to the south Pacific.
The End of the Line: How Overfishing Is Changing the World and What We Eat is a book by journalist Charles Clover about overfishing. It was made into a movie released in 2009 and was re-released with updates in 2017.
National Geographic is an Indian pay television channel owned by The Walt Disney Company India. a wholly owned by The Walt Disney Company. it's mainly telecast features non-fiction, documentaries involving nature, science, culture, and history, produced by the National Geographic Society. It broadcasts in Seven languages.
Wicked Tuna is an American reality television series about commercial tuna fishermen based in Gloucester, Massachusetts, who fish for the lucrative Atlantic bluefin tuna in the North Atlantic Ocean. The teams of fishermen battle each other to see who can get the most profit out of catching the fish. The series has aired on National Geographic Channel since April 1, 2012.
Big-game tunny fishing off Scarborough was a sport practised by wealthy aristocrats and military officers mostly in the 1930s. The British Tunny Club was founded in Scarborough in 1933 and had its headquarters there. The Atlantic bluefin tuna (Thunnus Thynnus) is a large and powerful fish, arguably the strongest fish in the world, which is frequently the target of big-game fishermen. Off the Yorkshire coast in that era various records were made for size of tunny caught with rod and line. Tunny was present in the North Sea until the 1950s when commercial herring and mackerel fishing depleted its food supply and it became extirpated.
Tuna Wranglers (2007) is a documentary film produced by the makers of Deadliest Catch. It follows the exploits of the southern bluefin tuna industry in South Australia as it captures wild fish and transports them to grow-out pens where the fish are fattened up for sale to the Japanese market. It features footage of fishermen diving into tuna pens to wrestle sharks in order to protect their multimillion-dollar stock. The film was directed and produced by Mark Strickson for television and has also been released on DVD in several regions. Critics of the film noted the omission of the southern bluefin tuna's conservation status and the incongruous casting of an American narrator given the exclusively Australian cast and story. The film was produced by NHNZ for the Discovery Channel. A year after its release, the film was acknowledged by the southern bluefin tuna industry as having helped raise its public profile and boosted related tourism activity in the town of Port Lincoln.
Clean Seas Seafood Ltd is an Australian seafood production company specialising in the sea-cage aquaculture of Yellowtail kingfish. It was established by The Stehr Group in 2000, and became the first Australian company fish farming in South Australia to be listed on the ASX in 2005. The company was established by "tuna baron" Hagen Stehr, whose son Marcus remains one of the company's directors. Clean Seas has shore and sea-based fish farming facilities at Arno Bay, aquaculture leases in Fitzgerald Bay and near Port Lincoln and a processing facility at Royal Park in Adelaide. Its tuna interests were originally held by the private company Australian Tuna Fisheries Pty Ltd. Clean Seas' ambition to control and commercialise the lifecycle of the Southern bluefin tuna has not been realised.
