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Farmed bluefin tuna. (Photo: Gabriel Mourente/IEO)

Massive bluefin tuna egg-laying in captivity

Click on the flag for more information about Spain SPAIN
Friday, June 17, 2011, 22:50 (GMT + 9)

For the third consecutive year, researchers from the Spanish Institute of Oceanography (IEO) obtained viable bluefin tuna (Thunnus thynnus) egg-laying in captivity at its facilities in Murcia without hormonal induction.

Scientists hope to surpass the results achieved during the previous two years, when the survival reached was between 73 and 110 days, respectively.

Since 9 June, the experts have obtained viable bluefin tuna egg-laying daily in IEO Murcia Oceanographic Centre.

In one day more than 10 million eggs were laid, according to IEO.

This initiative is carried out under SELFDOTT (Self-sustained Aquaculture and Domestication of Bluefin Tuna) project, coordinated by researcher Fernando de la Gándara.

About 60 tuna reproducers are located in two floating cages of 25 meters in diameter and 20 meters deep in the bay of El Gorguel (Cartagena).

These cages are managed by the Company Caladeros del Mediterráneo SA, belonging to the Ricardo Fuentes business group, participating in SELFDOTT project.

IEO said that its main goal is to "lay the foundation for the development of techniques for closing the life cycle of this species and juvenile production through aquaculture, regardless of natural populations."

The Japanese expert in cultured Pacific bluefin tuna, Manabu Seoka, has worked with Spanish scientists for a year. The scientist is also a professor at the Polytechnic University of Cartagena.

Related articles:

Mass bluefin egg layings obtained without hormonal induction
Bluefin tuna breeding breakthrough may spur sustainability

By Analia Murias
[email protected]
www.fis.com

 

 

Photo Courtesy of FIS Member  IEO - Instituto Español de Oceanografía (Oficina central)
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