Recirculating aquaculture system | Wikipedia audio article
Channel: wikipedia tts
Date: 02/07/2019

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Recirculating_aquaculture_system


00:00:48 1 RAS water treatment processes
00:01:40 1.1 Biofiltration
00:02:52 1.2 Solids removal
00:04:19 1.3 Oxygenation
00:05:35 1.4 pH control
00:06:44 1.5 Temperature control
00:07:46 1.6 Biosecurity
00:08:37 2 Advantages
00:09:27 3 Disadvantages
00:09:55 4 Special types of RAS
00:10:05 4.1 Aquaponics
00:11:25 4.2 Aquariums
00:12:22 5 See also



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SUMMARY
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Recirculating aquaculture systems (RAS) are used in home aquaria and for fish production where water exchange is limited and the use of biofiltration is required to reduce ammonia toxicity. Other types of filtration and environmental control are often also necessary to maintain clean water and provide a suitable habitat for fish. The main benefit of RAS is the ability to reduce the need for fresh, clean water while still maintaining a healthy environment for fish. To be operated economically commercial RAS must have high fish stocking densities,  and many researchers are currently conducting studies to determine if RAS is a viable form of intensive aquaculture.