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Groupers can be fed tilapia whose growth was stunted by overcrowding. For milkfish, marine cages are more intensive and can produce higher output per unit area than in other locations. [11] Growth rates for caged tilapia vary from four months to a year depending on environmental conditions.
Tilapia were introduced to Indonesia in 1969 from Taiwan. Later, several species also introduced from Thailand (Nila Chitralada), Philippines (Nila GIFT) and Japan (Nila JICA). Tilapia has become popular with local fish farmers because they are easy to farm and grow fast. Major tilapia production areas are in West Java and North Sumatra.
When tilapia are raised in the tanks, they are able to eat algae, which naturally grow in the tanks when the tanks are properly fertilized. [ 38 ] The tank water is slowly circulated to the hydroponic beds, where the tilapia waste feeds commercial plant crops.
Tilapia (/ t ɪ ˈ l ɑː p i ə / tih-LAH-pee-ə) is the common name for nearly a hundred species of cichlid fish from the coelotilapine, coptodonine, heterotilapine, oreochromine, pelmatolapiine, and tilapiine tribes (formerly all were "Tilapiini"), with the economically most important species placed in the Coptodonini and Oreochromini. [2]
Some species that are commonly raised in hatcheries include Pacific oysters, shrimp, Indian prawns, salmon, tilapia and scallops. The value of global aquaculture farming is estimated to be US$98.4 billion in 2008 with China significantly dominating the market; [ citation needed ] however, the value of aquaculture hatchery and nursery production ...
In doing so, tilapia often out compete native fish, create turbidity in rivers by digging, and can reduce available sun light for aquatic plants. Tilapia greatly affect and alter local habitat. Many environmental problems wrought by tilapia have been observed in different locations, including Australia, the Philippines, and the United States ...
In 1998, the first commercial farming of tilapia able to survive in brackish water took place in Negros Occidental, in this case a hybrid of Mozambique tilapia and Oreochromis urolepis hornorum. Tilapia farming began to replace milkfish farming. [4] The fisheries code also included general provision for closed seasons to protect target species.
Territorial waters and exclusive economic zone of the Philippines. The Philippines is an archipelagic state whose over 7,000 islands [1] with their large coastal population [2]: 2 are surrounded by waters including 2,263,816 square kilometres (874,064 sq mi) of exclusive economic zone and 679,800 square kilometres (262,500 sq mi) of territorial sea, [3]: 1 of which 184,600 square kilometres ...