Text written in Basque and translated automatically by Elia without any subsequent editing. SEE ORIGINAL
Fish farms away from sustainability
2004/04/01 Elhuyar Zientzia Iturria: Elhuyar aldizkaria
Although it was considered that farms would help to cope with the decline of the population of marine fish species, there is an opposite phenomenon.
Fish from fish farming feed on fish caught in the sea, so as the number of nurseries increases, catches of sardines and herring have also grown.
According to a study published in the U.S., in 2001, to obtain a kilo of farm fish it was necessary to fish 1.36 kilos of fish. In total, 12 million tons of fish were used to feed the nurseries, an amount that is growing. The problem is due, logically, to the growth of carnivorous fish. Therefore, one of the solutions consists of the cultivation of herbivorous fish.
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