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2. Raceway (aquaculture) - Wikipedia

   en.wikipedia.org/wiki/Raceway_(aquaculture)

   [3] [4] The average depth of a raceway for fin fish, such as rainbow trout, is about one metre. [17] This means each section in a raceway should be about 30 m long and 2.5–3 m wide. The landscape should sloped to one or two percent, so the flow through the system can be maintained by gravity.

3. Fish pond - Wikipedia

   en.wikipedia.org/wiki/Fish_pond

   Medieval fish pond still in use today at Long Clawson, Leicestershire. Records of the use of fish ponds can be found from the early Middle Ages. "The idealized eighth-century estate of Charlemagne's capitulary de villis was to have artificial fishponds but two hundred years later, facilities for raising fish remained very rare, even on monastic estates.".

4. Stream pool - Wikipedia

   en.wikipedia.org/wiki/Stream_pool

   Such pools can be important fish habitat, especially where many streams reach high summer temperatures and very low-flow dry season characteristics. In warm and arid regions, the stratification of stream pools provide cooler water for fish that prefer low water temperatures, such as the redband trout ( Oncorhynchus mykiss ) in the Western ...

5. Fish farming - Wikipedia

   en.wikipedia.org/wiki/Fish_farming

   These fish-farming ponds were created as a cooperative project in a rural village in the Congo. These use irrigation ditches or farm ponds to raise fish. The basic requirement is to have a ditch or pond that retains water, possibly with an above-ground irrigation system (many irrigation systems use buried pipes with headers). [31]

6. Water garden - Wikipedia

   en.wikipedia.org/wiki/Water_garden

   Koi fish Fishpond with stepping stones and stream Hatchet Pond, New Forest, England Fish in a pond in Yuyuan Garden, Shanghai. Often the reason for having a pond in a garden is to keep fish, often koi, though many people keep goldfish. Both are hardy, colorful fish which require no special heating, provided the pond is located in an area which ...

7. Fishponds of the Třeboň Basin - Wikipedia

   en.wikipedia.org/wiki/Fishponds_of_the_Třeboň...

   The fishponds of the Třeboň Basin or Třeboň fishpond system (Czech: Třeboňská rybniční soustava) are a collection of over five hundred fish ponds.They were constructed from the 13th century onwards in the Třeboň Basin area of Bohemia, now the South Bohemian Region of the Czech Republic, with most work occurring between the 15th and 16th centuries, and collectively cover ...