Tuna farming, bull of the sea
Tuesday, December 15th, 2009Its easy to see why the fishing industry is bullish on Tuna farming. Imagine the prospects of farming this exquisitely revered fruits de mer. One can easily expand the demand for this exquisite culinary fish without compromising on what is already a difficult and collapsing wild population stock, if the method could be perfected. Research after a recent article about break-through progress as written on Times Magazine as an highly important innovation of 2009 maybe at this point, rather panglossian.
The idea of Tuna Aquaculture is not new. Like chickens or any commonly available livestock for meat, its is the semblance of the progression of hunter-gatherer methods towards an industrial farming method. However, it is because farming tuna is not so much like rearing chicken and more akin to taming bisons for meat that has, till this day made Tuna farming still more elusive commercial practice unlike other species like Salmon and Cod. That while a tuna, may need as long as 12 years to reach sexual maturity, that they are voracious eaters, require plenty of space and still wild in relation to human civilization has not deterred the most dedicated of breeders, notably the Kinki University of Japan, CleanSeas Tuna Ltd Australia and Hawaii Ocean Technology.
Previous Tuna farming, cannot be considered as true aquaculture because its not a closed cycle in which Tunas were bred and grown from brood stocks, rather Fisherman herded wild Tuna into pens and fed them an artificial diet to rapidly increase their size and fat content. This has lead to an even greater demand of wild Tuna and have brought Mediterranean stocks of wild bluefin Tuna dangerously to the brink of collapse, this was highlighted 7 years ago in a 2002 - European WWF report.
Today, these companies are testing methods to increase the percentage of successful Tuna breeding to new heights by re-applying previous methods of growing stock as land based animals, such as spearing timed hormone injections to artificially boost sexual maturity and the development of more cost-effective feeding solutions. Feed made less of raw fish material, which are mainly made out of fishing out smaller fish species on which poor developed nations require and more out of vegetable material, such as soy beans, gluten and wheat.
That however, against the backdrop of a demanding new market of this profitable status rendering food item is merely inheriting the same problems that the chicken and bovine industry is going through. Namely land and coastal pollution through the negligent discharge of sewage and fecal matter and the increasing strain on agricultural land, fresh water and fossil fuels to supply the demand for luxury seafood.
An article on the Japanese Daily Yomiuri closes with a caution and advise to eat less ‘toro’, the prized fatty cut. “To keep enjoying ‘toro,’ we must exercise self-control,” it said.
