{"id":24934,"date":"2022-08-31T11:25:43","date_gmt":"2022-08-31T10:25:43","guid":{"rendered":"https:\/\/www.innovationnewsnetwork.com\/?p=24934"},"modified":"2022-08-31T12:00:27","modified_gmt":"2022-08-31T11:00:27","slug":"future-of-recirculating-aquaculture-system-crustacean-culture","status":"publish","type":"post","link":"https:\/\/www.innovationnewsnetwork.com\/future-of-recirculating-aquaculture-system-crustacean-culture\/24934\/","title":{"rendered":"Is there a future for recirculating aquaculture system technology and crustacean culture?"},"content":{"rendered":"

Recirculating aquaculture system technology enables the year-round commercial production of prawn species. Here, Marineholmen RASLab<\/a> examines the technology\u2019s place in the future of crustacean culture.<\/h2>\n

Of the large number of prawn species with potential for aquaculture, only a handful are commercially produced. Of these, the species of choice is mostly decided on due to its disease resistance, ease of production and closed lifecycle, high commercial value, and suitability to intensive aquaculture.<\/p>\n

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Litopenaeus vannamei Source: Natural shrimp Inc
\u00a9 iStock\/Geshas<\/figcaption><\/figure>\n

Commercially produced prawn species<\/h3>\n

Typically, the whiteleg prawn (Litopeneaus vannamei<\/em>) is prominent, along with the black tiger prawn (Penaeus monodon<\/em>). However, lesser cultured species of Indian white prawn (Penaeus indicus<\/em>), Kuruma prawn (Penaeus japonicus<\/em>) and giant freshwater prawn (Macrobrachium rosenbergii<\/em>) are also commercially viable species.<\/p>\n

In addition to prawns, the culture of freshwater crayfish focuses on a few desirable species, although these products may represent a much lower tonnage compared with that of prawns. Species like the red swamp crayfish (Procambarus clarkia<\/em>) and the Australian redclaw crayfish (Cherax quadricarinatus<\/em>) are similarly commercially cultured. Commercial aquaculture production of crustaceans is primarily carried out in large earthen ponds in typically tropical regions. However, innovations in technology are providing alternative approaches with growing commercial success.<\/p>\n

Recirculating aquaculture systems<\/h3>\n

With the use of recirculating aquaculture system (RAS) technology, year-round commercial production of prawn species, most typically Litopenaeus vannamei<\/em>, is now available and is being carried out in non-traditional prawn cultivation regions. For example, pioneering production of prawns in Bavaria, Germany (CrustaNova), and in LaCoste, Texas, and Webster city, Iowa (Natural shrimp Inc). Even start-up companies that also work with RASLab, like Norway\u2019s Shrimp vision AS, use RAS technologies producing products that are either processed or shipped live to their respective markets.<\/p>\n

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An electrocaogulation processing unit, that replaces biofiltration in salt water aquaculture of shrimp (Natural Shrimp Inc.)<\/figcaption><\/figure>\n

There are three main approaches used for production:<\/p>\n