Croatian Tuna Farm Takes A Major Step Towards Sustainable Farming Of Atlantic Blue Fin Tuna

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7th October 2009, 02:22pm - Views: 675

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Croatian Tuna Farm Takes A Major Step Towards Sustainable Farming of Atlantic Blue Fin Tuna

ZADAR, Oct. 7 /PRNewswire-AsiaNet/ --

    A vital step towards closed life cycle farming of the commercially

valuable Atlantic Blue Fin Tuna (NBT) was achieved in the Adriatic farming

sites of Kali Tuna, a Croatian tuna farming company and the laboratories of

the University of Split. Marine scientists at Split University have confirmed

that gametogenesis was completed and a number of tuna eggs were spawned in

cages off the coast of Croatia.

    In the experiment over 800 pieces of brood stock were kept in a special

cage since the spring of 2006. The fish spawned successfully in the cage

during the early summer of 2009. Most of the eggs were released naturally

into the water, whilst a number of eggs were collected and later successfully

hatched in a Split-based laboratory.

    During the past few years the future of the NBT has become bleak, with

excessive catch of the coveted fish which claims up to $25(US) a pound on the

Tsukiji fish market in Tokyo.

    The key to sustainability in the farming of tuna is to domesticate the

NBT by creating a 'closed life cycle' farming process, as previously has been

done with salmon and other species. This process involves breeding the fish

in captivity and growing it on underutilized, small pelagic fish. Scientists

and tuna farmers in Europe, Japan and Australia have for years tried to

achieve hatching in captivity, a task made especially difficult by the lack

of knowledge of the mating habits of the tuna. Some success has been recorded

to date, by Kinki University in Japan and Clean Seas Tuna in Australia, in

each case in artificial, controlled environments.

    "The fact that the captive tuna has spawned without hormones or human

assistance makes this a unique event," says Dr. Ivan Katavic, former

assistant minister of fisheries in Croatia, currently the Head of Laboratory

at the Institute of Oceanography and Fisheries at the University of Split.

"Our project was designed to break the code of the NBT's reproduction habits.

We aimed to create a closed life cycle for the farming of the species and

relieve the pressure on the existing fish in the world's oceans. This result

is a significant step in that direction. The combination of the farming

techniques of Kali Tuna and the location of their cages are the key to our

achievement. Kali Tuna grows its fish for a longer period than most other

farms. The combination of good husbandry and unique site conditions allows

Kali Tuna to meet physiological requirements of brood stock to complete

reproductive cycle in captivity."

    Oli Valur Steindorsson, is the Executive Chairman of Kali Tuna. Born in

the fishing village of Akranes in Iceland, Steindorsson spent a year in Tokyo

as an exchange student, studying the Japanese language and culture. He

entered the Japanese seafood business as an intern at the age of 17 and

established his own seafood trading company a decade later. Steindorsson

stated, "We maintain a clear focus on creating a sustainable, closed

lifecycle farming process, producing top of the line, healthy seafood with

the least environmental impact possible. The natural circumstance of the

event furthermore creates a hope of an extremely cost effective way to farm

the fish."

Sports Fishing Kali Tuna Doo 3 image

    Further reading, including pictures and biographies of Dr. Katavic and

    SOURCE:  Kali Tuna Doo

    CONTACT: Karl Petur Jonsson for Kali Tuna Doo



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