According to the type of fish pond water source
When viewed from the water source, there are 4 types of ponds, pools of rainwater, pond fountains, semi-technical irrigation ponds, and pools of technical berpengairan.
1. Rainwater ponds
Swimming pool of rainwater a source of water only from rain water. An example is the swimming pool excavation of sand and stone quarrying brick former. The characteristics of this pool are:
• No doors income and expenditures of water so that no water circulation.
• Experiencing a flood in the big rains and drought during the long dry season, especially for the shallow pond.
• Causeway very wide pool or none at all.
2. Swimming pool
This pool of water source is spring water (tap, Java). These springs are usually located near the pool, but sometimes become one with the pool. This type of pool is usually more secure continuity, compared with the pond water is rainwater. However, water quality is usually poor because of poor nutrient and low pH. Pond fountains are usually found in many mountainous regions such as the Ngrajeg, Muntilan (Central Java), Sukabumi, Cianjur, Bogor (West Java).
Swimming pool endangered because bottled water industry and water industry refill growing. Economic interests to make water from the springs into bottled drinking water that has economic value is higher. The author has done a survey to a field near a spring that was later the author know that potential investors are not going to build a fish pond but the water source to target as a raw material made of bottled water.
3. Semi-technical irrigation pond
Swimming technical half of the pond to get irrigation water from the technical half. The purpose of the technical half is mostly water channel is still the common ground and few walled. Setting water course more regularly than the previous two types of ponds.
When the rainy season the pool is not affected by flooding because the water revenues and expenses can be arranged and pematangnya was strong enough and wide. However, if the long dry season, these ponds may still be experiencing water shortages, because most of the water used for agricultural land so that the pool does not have water supply.
4. Technical Swimming
Technical swimming pool which is getting enough water throughout the year of tertiary irrigation canals. channel
water distributors to the most complex pool or in full is walled so that the water setting easier.
Any form of pond usually has to meet technical criteria. Ponds can be found in government agencies engaged in the Research and Development of Fish Farming, for example: Fish Seed of both local and central, Fresh Water Culture Center, Army Research Institute of Fisheries, Fisheries High School Business Department of Fresh Water Culture, etc. . There are also technical pond owned by the general public, but usually not very large and is the pond water rushing (Running Water Pond). Swift water ponds are found in areas such as West Java: Bogor, Bandung, Sukabumi, Cianjur, while all the grown fish are carp (Cyprinus carpio).
Because so far only fish that provide a positive response to supplementary feeding. That is, the quality of food provided in sufficient quantity and continuously, will provide a comparable body growth. That is what causes fish mas become the dominant commodity in the maintenance of a floating net fish in general peraian given additional food. While tilapia fish (Tilapia nilotica) occupies the second net, which is maintained only by using fish leftovers mas and moss growing on the net.
source: Heru Susanto, Penebar Swadaya, 2009