Pisiculture or aquaculture Fish farming or pisiculture is the principal form of aquaculture. Fish farming involves raising fish commercially in tanks or enclosures, usually for food. A facility that releases juvenile fish into the wild for recreational fishing or to supplement a species' natural numbers is generally referred to as a fish hatchery. Worldwide, the most important fish species used in fish farming are carp, salmon, tilapia and catfish Fish hatchery Recreational fishing Pisciculture or aquaculture Recreational fisheries in which fishermen catch fish for personal use, pleasure, or competition. Mariculture is a specialized branch of aquaculture involving the cultivation of marine organisms for food and other products in the open ocean, an enclosed section of the ocean, or in tanks, ponds or raceways which are filled with seawater. An example of the latter is the farming of marine fish, including finfish and shellfish like prawns, or oysters and seaweed in saltwater ponds. Non-food products produced by mariculture include: fish meal, nutrient agar, jewellery (e.g. cultured pearls), and cosmetics. Oyster shells farming Pearls WHAT IS AQUACULTURE? Aquaculture—also known as fish or shellfish farming—refers to the breeding, rearing, and harvesting of plants and animals in all types of water environments including ponds, rivers, lakes, and the ocean. Researchers and aquaculture producers are farming all kinds of freshwater and marine species of fish, shellfish, and algae (seaweed). Aquaculture produces food fish, sport fish, bait fish, ornamental fish, crustaceans, mollusks, algae, sea vegetables, and fish eggs. Aquaculture in the Ocean Backyard Fish Farming Backyard fish farming is a lot like vegetable gardening. Feed family and friends year-round from a sustainable source of food. Tilapia and Catfish is a fresh water fish which tastes great and easiest to raise. Catfish Tilapia Backyard Fish Farming This aquaculture system in St. Croix, U.S. Virgin Island, yields several hundred pounds of red tilapia each year. These cages have demand feeders — the fish strike a rod that releases food pellets into the water. Fish eggs Fish fry Caviar Farm in Devon has become the first fish farm in Britain to produce and sell caviar after harvesting Sturgeon eggs. Tropical fish hatchery Coral farming has come on in leaps and bounds in the last ten years, no longer do we need to rely on wild harvested corals for the aquarium industry. USES FOR AQUACULTURE Bait fish Aquaculture has other uses besides supplying seafood. It can be used to: • Restore habitat. • Enhance wild fish stocks such as salmon. • Produce baitfish. • Rebuild populations of threatened and endangered species. • Culture fish for zoos and aquariums. • Produce plant species for use in a range of food, pharmaceutical, nutritional, and biotechnology products. Aquarium IMPACTS OF AQUACULTURE • Like any human activity, aquaculture can impact the environment, which is why U.S. aquaculture operators adhere to strong environmental and food safety regulations. When practiced responsibly, aquaculture’s impact on wild fish and shellfish populations, marine habitats, and water quality is minimal. In fact, aquaculture can benefit the ecosystem – for example, oyster aquaculture creates habitat and enhances water quality.