Tuesday, June 2, 2020
Monday, June 1, 2020
The good news is that fish farms can increase stocking densities and improve yields by up to one third by specifying PSA oxygen applications from gas separation specialist Oxair, which can introduce oxygen to fish tanks in its pure form. The benefits of oxygen generation are well known within the aquaculture industry: fish require at least 80 percent oxygen saturation in the water for optimal growth. Insufficient oxygen levels cause poor digestion in the fish, so that they require more food and the risk of illness also increases.
James Newell, Oxair's CEO, explained, 'We supply PSA equipment for many facilities around the world, from aquacultures in Singapore to the University of Tasmania's research facility. Our installation at a barramundi farm in Darwin has shown that for every 1kg of oxygen pumped into the water, 1kg of fish growth results. Our generators are currently being used to farm salmon, eels, trout, prawns and snapper among other varieties, at a global level."
More efficient to run than traditional paddlewheel equipment, Oxair's generators increase the partial pressure and thus the natural saturation limit in the water by a factor of 4.8 compared to aeration with mere air. A steady supply of oxygen is vital, especially since the majority of fish farms are located in remote areas. Using Oxair's equipment, fish farms can maintain a reliable in-house supply of oxygen rather than depending upon tanker deliveries which, if delayed, could compromise the quality of a fish farm's entire stock.
Farms can make further savings as fish health and metabolism are improved, so less feed is needed. As a consequence, salmon farmed in this way contain a higher concentration of Omega 3 fatty acids and develop an improved flavour. As the quality of the water determines the quality of the fish, Oxair's equipment can also be used to create the ozone needed in water recycling reactors to sterilise the used water - which is then treated with UV light before being recirculated into the tank.
Oxair's designs are focused on meeting exacting customer requirements, reliability, ease of maintenance, safety, and plant self-protection. The company is a world leading manufacturer of gas process systems, for shipboard and land-based use to suit any requirement.
Visit the Oxair website, HERE.
Using Minnowtech's unique IP and data-based imaging tool, shrimp farmers are able to optimise the health and growth of their crop, enhancing the harvest of market-size shrimp.
'We are delighted to have made this deal to support Minnowtech and help them commercialize the fantastic technology they have developed,' said Chris Hyde, Chief Commercial Officer of OTAQ Group. 'We believe aquaculture is the key to sustainable food production and are very excited to be involved in a technology specifically aimed at the shrimp sector. This investment fits very well within our strategy.'
'Having OTAQ Group involved is great for us and validates the hard work that the team here has put into our technology,' said Suzan Shahrestani, founder and CEO of Minnowtech. 'Having access to their product development expertise and market knowledge is going be a great advantage for us. We look forward to working closely with OTAQ in the future.'
Visit the OTAQ Group website, HERE.
Visit the Minnowtech website, HERE.