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Both aquaculture and fisheries — sometimes referred to as capture fisheries, as they involve the capture of wild seafood — come with significant environmental and climate considerations.
Aquaculture is fish or shellfish farming. [21] The aquaculture fisheries hatch and raise the fish until market size. [21] By using aquaculture the wild fish will be able to repopulate without the threat of overfishing. The aquaculture fish have a variety of uses including: food, nutritional, and pharmaceutical. [21] Two types of aquaculture exist.
Over the years, fish farming has made a name for itself in the fishing industry as a means of ensuring that the world's fish supplies do not deplete so rapidly. Sometimes referred to as "aquaculture", fish farming, when done right, can be one a very environmentally-friendly way to harvest fish. Fish farms are regulated by laws and management ...
Global capture fisheries and aquaculture production reported by FAO, 1990–2030 World aquaculture production of food fish and aquatic plants, 1990–2016 Harvest stagnation in wild fisheries and overexploitation of popular marine species, combined with a growing demand for high-quality protein, encouraged aquaculturists to domesticate other ...
According to the FAO, "...a fishery is an activity leading to harvesting of fish.It may involve capture of wild fish or raising of fish through aquaculture." It is typically defined in terms of the "people involved, species or type of fish, area of water or seabed, method of fishing, class of boats, purpose of the activities or a combination of the foregoing features".
Raising fish in cages in a lake in a relatively undeveloped environment. Urban aquaculture employs water-based systems, the most common, which mostly use cages and pens; land-based systems, which make use of ponds, tanks and raceways; recirculating systems are usually high control enclosed systems, [clarification needed] whereas irrigation is used for livestock fish.
Fish are harvested by commercial fishing and aquaculture. Stocks fished within biologically sustainable levels decreased from 90% in 1974 to 62.3% in 2021. [5] The world harvest increased over the 20th century and, by 1986, had stabilized around 85–95 million metric tons (94 × 10 ^ 6 –105 × 10 ^ 6 short tons) per year. [9]
Mariculture, sometimes called marine farming or marine aquaculture, [1] is a branch of aquaculture involving the cultivation of marine organisms for food and other animal products, in seawater. Subsets of it include ( offshore mariculture ), fish farms built on littoral waters ( inshore mariculture ), or in artificial tanks , ponds or raceways ...