File

advertisement
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.
Download