Recirculating aquaculture systems (RAS)

Ahead of the inaugural meeting of the World Aquaculture Society’s African Chapter, which is due to take place in Alexandria this month, Harrison Charo Karisa – one of the key organisers of the event – discusses the prospects of the continent’s aquaculture sect…

The UK’s first redclaw crayfish farm – operating in an indoor recirculating aquaculture system (RAS) – is due to open shortly in Dorset, as Elena Piana, founder of Noola Redclaw, explains.

Yarangjang Imchen claims to be the first ornamental fish and shellfish farmer in the landlocked state of Nagaland in northeast India, operating 40 tanks in his backyard.

Devices that produce nanobubbles are becoming increasingly popular in a range of aquaculture operations, with a growing number of studies supporting their value – both in improving production and in reducing the environmental impact of the industry.

Following a €3.7 million deal, Agtira is poised to produce salmon, cucumbers, tomatoes and herbs in an aquaponics facility beside the Östersund branch of Sweden’s largest supermarket chain, Maxi ICA.

Instead of treating and discarding wastewater from food processing, Mark Rottmann, CEO of iCell Aqua, is integrating it with RAS – bringing the industry closer to achieving zero-waste and fully circular protein production.*

Ecotechnolgies, including constructed and reciprocating wetland systems, might offer economical alternatives to RAS, employing some of the same principles as recirc systems, but at the fraction of the cost.

Jack James, founder and CEO of Pontus Research*, talks about his company’s new Singapore operation, the challenges of founding a business, and how the aquaculture sector can help to revitalise post-industrial Wales.

Jon Parker, development lead for Aquaculture Industry Wales (AIW), explains how the organisation - which is backed by a growing number of startups - aims to improve the industry’s reputation among the public and politicians, in order to generate much needed gr…

Royal Caridea is poised to harvest its first cohort of shrimp from an RAS facility in Arizona, where Dr Maurice C Kemp, the startup's founder and president, aims to continue to develop a unique, hyper-intensive farming system.

Indonesia’s eel farming industry has huge potential – as long as all stakeholders can make a supportive ecosystem – according to Angga Kurniawan, general manager of one of the country’s pioneering eel farms.