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A unique form of freshwater salmon farming occurs in some hydroelectric canals in New Zealand. A site in Tekapo, fed by fast, cold waters from the Southern Alps, is the highest salmon farm in the world, 677 m (2,221 ft) above sea level. [117] Before they are killed, cage salmon are sometimes anaesthetised with a herbal extract.
Hatcheries produce larval and juvenile fish, shellfish, and crustaceans, primarily to support the aquaculture industry where they are transferred to on-growing systems, such as fish farms, to reach harvest size. Some species that are commonly raised in hatcheries include Pacific oysters, shrimp, Indian prawns, salmon, tilapia and scallops.
Wild salmon is more nutritionally dense than farm-raised salmon and can contain up to three times less fat, fewer calories, and more vitamins and minerals like iron, potassium, and b-12.
The amount of organic waste produced by fish farms is also alarming. A salmon farm in Scotland, for instance, is estimated to produce as much organic waste as equivalent to a town of people between 10,000 and 20,000 people each year. [29] Today 50% of the world's seafood is farm-raised. [30]
1. Farm-Raised Salmon. Some farm-raised salmon may contain more parasites than its wild-caught counterpart due to the densely populated conditions of fish farms, which can foster a breeding ground ...
While Americans enjoy many of these Pacific salmon varieties, Atlantic salmon is by far the most popular salmon species consumed in the country, with 90% of the farmed salmon enjoyed here being of ...
Fans of salmon know just how versatile the fish is. Whether you enjoy it best smoked and on a bagel, or broiled with some light seasoning, salmon can spruce up a variety of dishes. In recent years ...
Fish cages containing salmon in Loch Ailort, Scotland, an inshore water. Inshore mariculture is farming marine species such as algae, fish, and shellfish in waters affected by the tide, which include both littoral waters and their estuarine environments, such as bays, brackish rivers, and naturally fed and flushing saltwater ponds.