Aquaculture is also a significant source of food especially as a source of protein for people. Most of the fish consumed by humans is produced by fish farms. The demand for safe, healthy seafood is growing. Types of aquaculture include algaculture, fish farming, shrimp farming, oyster farming, and the growing of cultured pearls. Particular methods include aquaponics, which integrates fish farming and plant farming. Algaculture is the production of seaweed and other algae
Aquaculture has been used in China for a long time. Hawaiians, Japanese and Romans have practiced aquaculture for centuries together. Since the middle ages it is in vogue in Europe America and Canada. The improvements in transportation have brought a new pinnacle in this field. The total world production of fisheries was 140.5 million tonnes of which aquaculture contributed about 32% of the total world production of fisheries in 2004. Major species produced are mainly fresh water fish , mollusks ,aquatic plants, diadromous fishes, crustaceans and marine fishes.
Aquaculture is an especially important economic activity in China. Top ten aquaculture producers are China,India,Vietnam,Thailand,Indonesia,Bangladesh,Japan,Chile,Norway and United states
Shrimp baiting is an exercise in itself, many interesting techniques are used.......
SEA FOOD IN THE USA-- Shrimps
Aquaculture often leads to higher than normal levels of fish waste in the water. It is organic and composed of nutrients necessary in all components of aquatic food webs. In some instances such as nearshore, high-intensity operations, increased waste can adversely affect the environment by decreasing dissolved oxygen levels in the water column.
Aquaculture can be more environmentally damaging than exploiting wild fisheries. Unused feed and waste products can contaminate the sea floor. Despite the environmental concerns, aquaculture profitability is very high. Newer methods minimize the risk of biological and chemical pollution through minimizing stress to fish, vaccinating fish, fallowing netpens, and applying Integrated Pest Management.Farming carnivorous fish may actually increase the pressure on wild fish.
