Roland Seitre / Southern bluefin tuna (Thunnus maccoyii) in fish cage of fish farm, Port Lincoln, South Australia, Critically Endangered species. Wild caught fish are reared in large fish cages for maximum growth bef...

Jeff Rotman / Mattanza fishermen landing Giant Bluefun tuna (Thunnus thynnus) using a technique in which a maze of nets are set, leading to a central pool, Favignana, Italy, May / June Model released.

Jeff Rotman / Mattanza fishermen landing Giant Bluefun tuna (Thunnus thynnus) using a technique in which a maze of nets are set, leading to a central pool, Favignana, Italy, May / June Model released.

Jeff Rotman / Mattanza fishermen landing Giant Bluefun tuna (Thunnus thynnus) using a technique in which a maze of nets are set, leading to a central pool, Favignana, Italy, May / June 1990

Juergen Freund / Kite fisherman using a kite and fishing line. Skipjack tuna are a common catch. Sulawesi, Indonesia, November 2009.

Juergen Freund / Kite fisherman using a kite and fishing line. Skipjack tuna are a common catch. Sulawesi, Indonesia, November 2009.

Juergen Freund / Fisherman on outrigger boat catching Yellowfin tuna with hook and line. Sulawesi, Indonesia, December 2009. Fishermen fish close to a fish attracting device, some remain at sea for up to 2 months.

Juergen Freund / Tone-Toneladang Tuna festival, Mamburao, Philippines, March 2010. Thirty tuna floats and dancers parade throughout the township of Mamburao celebrating the tuna catch following EU export standards.

Juergen Freund / Tone-Toneladang Tuna festival, Mamburao, Philippines, March 2010. Thirty tuna floats and dancers parade throughout the township of Mamburao celebrating the tuna catch following EU export standards.

Juergen Freund / Tuna fish processing plant, Yellowfin or Bigeye tuna caught from longliner boats are graded (high grade for export and low grade for selling to the local market) and processed Benoa, Bali, Indonesia,...

Juergen Freund / Tuna laid out in the fish landing and processing area of the Docks, Sarangani, Philippines, April 2010 . NOT AVAILABLE FOR MAGAZINE USE IN GERMAN-SPEAKING COUNTRIES UNTIL 1ST JULY 2013.

Juergen Freund / Dock worker carrying tuna from a fishing vessel to the fish landing and processing area, Sarangani, Philippines, April 2010.

Juergen Freund / Dock worker carrying Yellowfin tuna ashore for weighing, Jacana tuna fish landing, Puerto Princesa, Palawan, Philippines, April 2009

Juergen Freund / Skipjack tuna from Mabul fishermen delivering their catch to Semporna, Sabah, Borneo, Malaysia, June 2009.

Juergen Freund / Dock worker carries tuna to the fish landing and processing area of the Docks, Sarangani, Philippines, April 2010 . . NOT AVAILABLE FOR MAGAZINE USE IN GERMAN-SPEAKING COUNTRIES UNTIL 1ST JULY 2013.

Juergen Freund / Dock worker carries tuna through the fish landing and processing area, Sarangani, Philippines, April 2010 . NOT AVAILABLE FOR MAGAZINE USE IN GERMAN-SPEAKING COUNTRIES UNTIL 1ST JULY 2013.

Juergen Freund / Funae fishermen catching Skipjack tuna near Manado Tua using anchovies as live bait. Indonesia, October 2009.

Juergen Freund / Outrigger boats catch Yellowfin tuna fishing with hook and line. Catching a Yellowfin tuna, these fishermen fish near a fish attracting device (FAD) or rumpon, attached to a raft or rakit some 100 km...

Sue Flood / Bluefin tuna {Thunnus thynnus} captive in fish farm, Japan, 2000

Wild Wonders of Europe / Zankl / Atlantic bluefin tuna (Thunnus thynnus) shoal, captive, Malta, Mediteranean, May 2009 WWE BOOK & OUTDOOR EXHIBITION. PRESS IMAGE.

Wild Wonders of Europe / Zankl / Atlantic bluefin tuna (Thunnus thynnus) portrait, captive, Malta, Mediteranean, May 2009 WWE BOOK

Wild Wonders of Europe / Zankl / Atlantic bluefin tuna (Thunnus thynnus) shoal, captive, Malta, Mediteranean, May 2009

Wild Wonders of Europe / Zankl / Atlantic bluefin tuna (Thunnus thynnus) shoal, captive, Malta, Mediteranean, May 2009. WWE INDOOR EXHIBITION

Wild Wonders of Europe / Zankl / Atlantic bluefin tuna (Thunnus thynnus) captive, Malta, Mediteranean, May 2009

Wild Wonders of Europe / Zankl / Atlantic bluefin tuna (Thunnus thynnus) portrait, captive, Malta, Mediteranean, May 2009

Doc White / Yellow fin tuna (Thunnus albacares) shoal caught 275ft purse seiner fishing nets, Pacific ocean, Mexico.

Doug Perrine / Copper sharks / Bronze whaler (Carcharhinus brachyurus) and Little eastern tuna {Euthynnus affinis} feeding on a baitball of Sardines / Pilchards (Sardinops sagax) during the annual Sardine Run off t...

Luis Quinta / Bonito tuna {Sarda sarda} caught on a fishing line, Azores, Atlantic

Dan Burton / Bluefin tuna {Thunnus thynnus} in fish farm, Kusimoto, South Japan

Dan Burton / Blue fin tuna in fish farm in south Japan in Kusimoto

Mike Parry / Southern Bluefin Tuna (Thunnus maccoyii) school underwater, South Australia

Mike Parry / Southern Bluefin Tuna (Thunnus maccoyii) underwater, South Australia

Norbert Wu / Atlantic Bluefin Tuna (Thunnus thynnus) examinded with flashlights by buyers to determine the quality of the meat, Tsukiji Market, Tokyo, Japan

Norbert Wu / Atlantic Bluefin Tuna (Thunnus thynnus) underwater, Sardinia, Italy, Mediterranean Sea

Norbert Wu / Atlantic Bluefin Tuna (Thunnus thynnus) school in Mediterranean Sea, Sardinia, Italy

Martha Holmes / Bluefin tuna {Thunnus thynnus} Kushimoto Tuna Farm Japan. Bluefin tuna can swim at speeds of 50mph - they would win a silver swimming medal in an animal olympics competition.

Sue Flood / Giant bluefin tuna {Thunnus thynnus} caught on long line and then attacked by Killer whale

Sue Flood / Bluefin tuna display at fish market at Shimonoseki, Yamaguchi prefecture, Japan, April 2012

Mark Carwardine / Tuna used for bait in great white shark diving cage, Guadalupe Island, Mexico (North Pacific)

Roland Seitre / Southern bluefin tuna (Thunnus maccoyii) for sale in Tokyo fish market within 24 hours of culling from fish farm off Port Lincoln, South Australia, Critically Endangered species. Wild caught fish are...

Roland Seitre / Southern bluefin tuna (Thunnus maccoyii) for sale in Tokyo fish market within 24 hours of culling from fish farm off Port Lincoln, South Australia, Critically Endangered species. Wild caught fish are...

Roland Seitre / Southern bluefin tuna (Thunnus maccoyii) for sale in Tokyo fish market within 24 hours of culling from fish farm off Port Lincoln, South Australia, Critically Endangered species. Wild caught fish are...

Roland Seitre / Southern bluefin tuna (Thunnus maccoyii) in fish cage of fish farm, Port Lincoln, South Australia, Critically Endangered species. Wild caught fish are reared in large fish cages for maximum growth bef...

Roland Seitre / Manual capture and preprocessing of Southern bluefin tuna (Thunnus maccoyii) in fish cage of fish farm, Port Lincoln, South Australia, Critically Endangered species, June 2009, Wild caught fish are re...

Roland Seitre / Manual capture and preprocessing of Southern bluefin tuna (Thunnus maccoyii) in fish cage of fish farm, Port Lincoln, South Australia, Critically Endangered species, June 2009. Wild caught fish are re...

Roland Seitre / Manual capture of Southern bluefin tuna (Thunnus maccoyii) in fish cage of fish farm, Port Lincoln, South Australia, June 2009, Critically Endangered species. Wild caught fish are reared in large fish...

Roland Seitre / Netting fish at Southern bluefin tuna (Thunnus maccoyii) fish farm, Port Lincoln, South Australia, June 2009, Critically Endangered species. Wild caught fish are reared in large fish cages for maximum...

Roland Seitre / Southern bluefin tuna (Thunnus maccoyii) in fish cage of fish farm, Port Lincoln, South Australia, Critically Endangered species. Wild caught fish are reared in large fish cages for maximum growth bef...

Roland Seitre / Aerial view of fish cage for fish farming Southern bluefin tuna (Thunnus maccoyii), Port Lincoln, South Australia, Critically Endangered species. Wild caught fish are reared in large fish cages for ma...

Roland Seitre / Southern bluefin tuna (Thunnus maccoyi) in fish farm, MFE Tuna farming, Port Lincoln, South Australia, June 2009, a critically endangered fish

Jeff Rotman / Mr. Castiglione, owner of processing plant for Bluefin tuna (Thunnus thynnus) with a 320 kilo giant bluefin tuna caught using the traditional mattanza technique being displayed at a processing plant....

Jeff Rotman / Mattanza fishermen landing Giant Bluefun tuna (Thunnus thynnus) using a technique in which a maze of nets are set, leading to a central pool, Favignana, Italy, May / June

Juergen Freund / Dogtooth tuna (Gymnosarda unicolor) West New Britain, Papua New Guinea.

Juergen Freund / Funae fishermen catching skipjack tuna near Manado Tua using anchovies as live bait, Bunaken Island, Sulawesi, Indonesia, October 2009.

Juergen Freund / Skipjack tuna laid out at early morning fish auction market, Bitung, Sulawesi, Indonesia, October 2009.

Juergen Freund / Cutting and preparing Yellowfin tuna loin for packing at the Nutrindo Freshfood International tuna processing plant for export market, Bitung, Sulawesi, Indonesia, October 2009

Juergen Freund / Cutting and preparing Yellowfin tuna loin for packing at the Nutrindo Freshfood International tuna processing plant for export market, Bitung, Sulawesi, Indonesia, October 2009

Juergen Freund / Cutting and preparing Yellowfin tuna loin for packing at the Nutrindo Freshfood International tuna processing plant for export market, Bitung, Sulawesi, Indonesia, October 2009.

Juergen Freund / Yellowfin tuna brought to the Nutrindo Tuna Factory from the fishing boat for chlorine bath disinfecting, it is then brought in for export processing, Bitung, Sulawesi, Indonesia, October 2009.

Juergen Freund / Tuna fish being graded at harbour market, Puerto Princesa, Palawan, Philippines, April 2009.

Juergen Freund / Fisherman brings in Yellowfin tuna for weighing and grading at harbour market, Puerto Princesa, Palawan, Philippines, April 2009.

Juergen Freund / Locally called a rumpon, this fish attracting device (FAD) attached to a raft or rakit was located 100 km from the harbour and anchored 3,500m to the bottom of the sea. The FAD doubles as the night's...

Juergen Freund / Tuna fish landing from longliner boats that stay out at sea for a month or longer, Benoa Harbour, Bali, Indonesia, July 2009. Mother boats with a fresh load of ice, pick up tuna from these longliners...

Juergen Freund / Tuna fish processing plant, Yellowfin or Bigeye tuna caught from longliner boats are graded (high grade for export and low grade for selling to the local market) and processed, Benoa, Bali, Indonesia,...

Juergen Freund / Shrink wrapped Yellowfin tuna steak for export, Chen Woo processing plant, Bitung, Sulawesi, Indonesia, October 2009. Fish undergoes a "clear smoke" process which turns the dull maroon fish colour int...

Juergen Freund / Tuna fish landing from longliner boats that stay out at sea for a month or longer, Benoa Harbour, Bali, Indonesia, July 2009. Mother boats with a fresh load of ice, pick up tuna from these longliners...

Juergen Freund / Dock workers unload tuna from a fishing vessel and bring them to the fish landing and processing area, Sarangani, Philippines, April 2010.

Juergen Freund / Tuna fish processing plant, Yellowfin or Bigeye tuna caught from longliner boats are graded (high grade for export and low grade for selling to the local market) and processed Benoa, Bali, Indonesia,...

Juergen Freund / Fishermen arrive in the harbour to unload their tuna fish catch after several days out at sea. Without enough ice in their boats, fishermen are compelled to return to land to replenish the ice for the...

Juergen Freund / Tuna laid out in the fish landing and processing area of the Docks, Sarangani, Philippines, April 2010 . NOT AVAILABLE FOR MAGAZINE USE IN GERMAN-SPEAKING COUNTRIES UNTIL 1ST JULY 2013.

Juergen Freund / Dock worker carrying tuna from a fishing vessel to the fish landing and processing area, Sarangani, Philippines, April 2010.

Juergen Freund / Tone-Toneladang Tuna festival, Mamburao, Philippines, March 2010. Thirty tuna floats and dancers parade throughout the township of Mamburao celebrating the tuna catch following EU export standards.

Jeff Rotman / Giant Yellowfin Tuna (Thunnus albacares), Mexico, Pacific Ocean.

Pete Oxford / Fish at the fishmarket, Tuna (Thunnus sp) and Wahoo (Acanthocybium solandri) Puerto Ayora, Santa Cruz Island, Galapagos Islands

Tim Laman / At sea off the Fak Fak Peninsula, a fisherman in a canoe caught a variety of fish including tuna, snappers, and groupers on a hand line. This is a good example of a healthy fishery. West Papua, Indone...

Tim Laman / At sea off the Fak Fak Peninsula, a fisherman in a canoe caught a variety of fish including tuna, snappers, and groupers on a hand line. This is a good example of a healthy fishery. West Papua, Indone...

Steven David Miller / Tuna farming where wild-caught young tuna are penned and farmed until maturity, Southern Ocean bay, Port Lincoln, Eyre Peninsula, South Australia January 2007

Steven David Miller / Tuna farming where wild-caught young tuna are penned and farmed until maturity, Southern Ocean bay, Port Lincoln, Eyre Peninsula, South Australia January 2007

Richard Herrmann / Atlantic Bluefin Tuna (Thunnus thynnus) shoal, Mediterranean Sea of the coast of Turkey

Richard Herrmann / Atlantic Bluefin Tuna (Thunnus thynnus) shoal, Mediterranean Sea of the coast of Turkey

Richard Herrmann / Atlantic Bluefin Tuna (Thunnus thynnus) shoal getting corralled in fishing net, Mediterranean Sea of the coast of Turkey

Richard Herrmann / Atlantic Bluefin Tuna (Thunnus thynnus) shoal getting corralled in fishing net, Mediterranean Sea of the coast of Turkey

Richard Herrmann / Atlantic Bluefin Tuna (Thunnus thynnus) shoal, Mediterranean Sea of the coast of Turkey

Richard Herrmann / Atlantic Bluefin Tuna (Thunnus thynnus) shoal, Mediterranean Sea of the coast of Turkey

Richard Herrmann / Atlantic Bluefin Tuna (Thunnus thynnus) shoal, Mediterranean Sea of the coast of Turkey

Richard Herrmann / Atlantic Bluefin Tuna (Thunnus thynnus) shoal, Mediterranean Sea of the coast of Turkey

Richard Herrmann / Atlantic Bluefin Tuna (Thunnus thynnus) shoal, Mediterranean Sea of the coast of Turkey

Jeff Rotman / Great White shark (Carcharodon carcharias) lured close by tuna bait, Dangerous Reef, Great Australian Bight, South Australia

Jeff Rotman / Great White shark (Carcharodon carcharias) approaching tuna bait, Dangerous Reef, Great Australian Bight, South Australia

Jeff Rotman / Diver photographing Great White shark (Carcharodon carcharias) attacking tuna bait, Pacific Ocean, Guadalupe Island, Mexico Model released.

Oriol Alamany / Petroglyphs showing a Tuna fish at Papa Tataku Poki, Tongariki, Easter Island, Pacific ocean, November 2004

Jeff Rotman / Bluewater hunter surfaces with giant Yellowfin Tuna (Thunnus albacares) killed with a hand-made, 2m speargun, Mexico, Pacific Ocean.

Ingo Arndt / Pacific Bluefin Tuna (Thunnus orientalis) hunting Pacific Sardines (Sardinops sagax), California

John Cancalosi / Albacore Tuna (Thunnus alalunga) being filleted, Oregon, USA

John Cancalosi / Albacore Tuna (Thunnus alalunga) being filleted, Oregon, USA

Wild Wonders of Europe / Zankl / Abstract Atlantic bluefin tuna (Thunnus thynnus) captive, Malta, Mediteranean, May 2009