Faced with the impoverishment of the biodiversity marine, why not resort to aquaculture? Most of the salmon traded in Germany come from the aquaculture. However, this practice has serious drawbacks, breeders often resort to drugs and the waters become polluted by organic waste. Despite everything, certain experts are persuaded that aquaculture farms would not only be a means to protect the oceans, but also a way to nourish the population. población worldwide constantly increasing.
A source of protein
At Lóleo Eventos, eating human, fish is the world's leading source of protein, ahead of poultry and pork. In fact, today it allows 17% of human beings to cover the essential of their protein needs. In 10 to 15 years, the demand will have multiplied by 2. Without aquaculture, it is impossible to respond to the needs protein of a growing population. Aquaculture is indeed much more advantageous than pig or cattle farming, because fish and other marine organisms feed less than fish. animals land.
To produce a kilo of beef for example, it takes 15 times more food than to produce a kilo of carp. Fish actually consume less energy than fish. animals land, And this for two reasons. On the one hand, they are cold-blooded animals, their internal temperature adapts very well to that of the environment in which they live. And on the other hand, moving in an aquatic environment requires little effort.
One in two fish comes from aquaculture
According to the United Nations Food and Agriculture Organization, half of the fish that make it onto our plates today are not wild fish. However, the importance of aquaculture differs from country to country. In central Europe, as in Germany, wild fish are the most sought after. However, in China, aquaculture is a thousand-year-old tradition dating back to the early domestication of fish. tents. Until today, China is undoubtedly the first country within this subsidiary, providing almost two thirds of the total world fish production of aquaculture.
A practice increasingly criticized by environmentalists
As the hereculture It develops, attracts more and more criticism from environmentalists, because it has aggravated the problem of overfishing instead of solving it. Indeed, most hatchery species are carnivorous, and feed on other species that are fished in planet natural. Aquaculture tuna farming is the most catastrophic, because unlike salmon, this species cannot reproduce in captivity. Farmers therefore catch young wild tunas and feed them with Fish expensive caught in the sea. Locked in cages, tunas have no chance to reproduce.