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Philippine aquaculture is hampered by the lack of a "trash fish" — a cheap fish that can be used to feed farmed fish — as most fish in the Philippines are directly valuable for human consumption. This increases the cost of farming carnivorous fish. Another common impediment is access to juveniles, for fish, crabs, and shrimp.
Aquaculture in the Philippines (which includes fish, shellfish, and seaweed farming) comprises 39% of the country's fisheries sector. The rest of the fisheries sector is composed of commercial and municipal fishing. [59] Some of the more common aquaculture products in the Philippines are bangus, tilapia, catfish and mudfish, and prawns. [59]
The Philippines is an archipelagic country with a large coastal population. In many areas, communities rely heavily on fisheries for subsistence and livelihoods. Both capture fisheries and aquaculture occur inland and at sea, producing various fish, shellfish, other invertebrates, and seaweed.
In the 1960s, crabs of the Scylla genus, which had previously been opportunistically farmed in milkfish ponds, began to be more actively managed, being deliberately fenced into fish ponds. Economic benefits were limited by the high cost of feeding meat to crabs. Farming crabs within natural mangrove forests is one method used to reduce overhead ...
Raising fish in cages in a lake in a relatively undeveloped environment. Urban aquaculture employs water-based systems, the most common, which mostly use cages and pens; land-based systems, which make use of ponds, tanks and raceways; recirculating systems are usually high control enclosed systems, [clarification needed] whereas irrigation is used for livestock fish.
The aquaculture or farming of piscivorous fish, like salmon, does not help the problem because they need to eat products from other fish, such as fish meal and fish oil. Studies have shown that salmon farming has major negative impacts on wild salmon, as well as the forage fish that need to be caught to feed them.
Their ability to generate positive spillover effects, increasing fish stocks in the surrounding water, is also recognized by some communities. Some protected areas can also provide alternative livelihoods through ecotourism. [59] Many MPAs in the Philippines include both a core no-take area, and a surrounding area with regulated activities.
Fish farming or pisciculture involves commercial breeding of fish, most often for food, in fish tanks or artificial enclosures such as fish ponds. It is a particular type of aquaculture , which is the controlled cultivation and harvesting of aquatic animals such as fish, crustaceans , molluscs and so on, in natural or pseudo-natural environments.