What is aquaculture? Is it sustainable?
What will be an ideal response?
Catching wild fish cannot keep pace with consumer consumption. The shortfall has spurred the rapid growth of aquaculture, which now provides roughly half of the world’s food fish and shellfish. Aquaculture continues to grow more rapidly than any other kind of food animal production. Some aquaculture farms consist of vast net cages that enclose fish in ocean water or freshwater lakes, where natural water flow refreshes the cages. Other types of farms house fish in artificial ponds positioned close to natural water or farther inland. On the coast, natural water is diverted through the ponds, bringing fresh water in and carrying out wastes. Farther inland, pond water is continuously filtered and cleansed, recycling through the ponds. All farmed fish must be fed, and fish chow consists of grains and fish harvested from wild species, diminishing their stocks for human consumption. Adequate environmental safeguards are a must to prevent environmental degradation from aquaculture. Aquaculture can be sustainable, however, with the appropriate technologies and practices.
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