People like tuna. (Tuna may not like people of course.) However, natural wild populations are in sharp decline. One answer may be a tuna farm. The experiment took place at Umami Sustainable Seafood Inc.'s commercial fish farming facility Kali Tuna, based on the Croatian island of Uglian in the Adriatic sea. Umami also claimed to breed the five-year-old tuna without adding artificial hormones. Because the fish naturally spawn in deep, open waters, many have tried with limited success to breed tuna in captivity. Others have questioned whether a tuna breeding program could even work without large amounts of hormones regulating the life cycle of the fish.
People like tuna. (Tuna may not like people of course.) However, natural wild populations are in sharp decline. One answer may be a tuna farm. The experiment took place at Umami Sustainable Seafood Inc.'s commercial fish farming facility Kali Tuna, based on the Croatian island of Uglian in the Adriatic sea. Umami also claimed to breed the five-year-old tuna without adding artificial hormones. Because the fish naturally spawn in deep, open waters, many have tried with limited success to breed tuna in captivity. Others have questioned whether a tuna breeding program could even work without large amounts of hormones regulating the life cycle of the fish.
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The most common is Skipjack Tuna, mostly used for canning. Skipjack accounts for about 60% of all Tuna caught each year. Yellowfin is the second largest at about 24%. Bigeye Tuna is at about 10% and Albacore 5%.
The species most commonly used for Sashimi and Sushi are Yellowfin, Bigeye and Albacore tuna.
The remaining 1% is Blue Fin Tuna; the giant of the Tuna family. It is the world’s most sought after and the most delicious Tuna for sashimi and sushi. It is traditionally consumed raw for sashimi or sushi but is a fantastic tasting and healthy as seared steak.
Two major species of Blue Fin Tuna exist, Southern Blue Fin Tuna, found in oceans in the Southern hemisphere and Northern Blue Fin Tuna, found in the Northern hemisphere.
Blue Fin Tuna is especially sought after by the Japanese who traditionally consume over 80 – 90% of all supply.
Genetic testing showed that the tuna fry hatched from the captive spawning project in Croatia matched the genetics of the maternal population. Which means the young fish came from eggs and sperm that came together in Umami's facility.
Increasing quantities of high-grade tuna are reared in net pens and fed bait fish. In Australia, former fishermen raise southern bluefin tuna, Thunnus maccoyii, and another bluefin species. Farming its close relative, the northern bluefin tuna, Thunnus thynnus, is beginning in the Mediterranean, North America and Japan. Hawaiʻi just approved permits for the first U.S. offshore farming of bigeye tuna in water 1,300 feet (400 m) deep.
For further information: http://www.umamiseafood.com/
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