Then, the majority of fish and seafood that consumes the world’s population every day, no longer come from wild specimens but from aquaculture. Aquaculture means the fish are fattened in ponds, breeding ponds, net pens or cages in the sea instead of being at-large in the wild sea.
According to a Reddit sourced article, there is a great demand for seafood. Salmon, carp, catfish, clams or shrimp, among the others from the water livestock fill our refrigerated shelves in supermarkets, but most of them will never experience the wild. Many argue that sustainable fishing is dwindling and the seas are not what they use to be to fish farms are the solution.
30 years ago, just six percent of the consumed fish came from fish farms worldwide. Today, there are nurseries for freshwater fish, and unbeknownst to most consumers, nearly 50 percent come from aquaculture. Marine fish and seafood are there to mainly become bred and fattened before being shipped off. Over the next 20 years, it is estimated that approximately 80 percent of seafood for sale will derive from aquaculture. The World Bank says no food sector has recently taken such a boost in development as fish farming.
Greenpeace says with enormous technical effort and considerable growth rates, the industry now produces more than half of the world-consumed fish. About 600 different species are now bred in captivity. Africa and Asian continents have been using the controlled rearing of aquatic organisms for decades, and now the industry is really changing. The trend is towards intensive cultivation in huge cages off shore or in closed circuit systems, which allow breeding, regardless of natural water resources, in almost any place on earth.
Whether using closed recirculating aquaculture systems that are independent of natural water sources, or caged pen cultures, how healthy is this type of breeding and can it eventually affect the quality of fish we consume. That question will rest on intensive independent studies.