Concept Aquaculture Tanks Make A Real Splash

Concept’s Aquaculture Tanks received their first residents this week when thousands of smolt (young salmon) were transferred to a new multimillion-dollar growing facility in Tasmania.

Concept were engaged to build 20 specially engineered modular concrete tanks as part of Australia’s first onshore salmon nursery. The new $43.7M facility will enable Huon Aquaculture to grow salmon larger on the land before transferring them to ocean.

The nursery built at Whale Point, Port Huon, uses a world class recirculating aquaculture system (RAS). The RAS limits water exchange (typically water exchange rate of 10% or less of the total system water volume per day) thereby reducing the volume of water required. Bio-filtration and other types of filtration in combination with environmental controls maintain clean water and provide the perfect growing conditions for the fish.

The Concept Aquaculture Tanks ranged in size from 250,000 litres to 1.1 megalitres serving as grading and grow tanks, water storage and dewatering tanks.

The project utilised Concept’s modular tank system which provided high quality pre-stressed, precast concrete panels manufactured offsite and then transported to the facility.

The offsite production process involved horizontally casting panels in specially engineered steel forms with the strength of the concrete augmented with the use of steel reinforcing. The structural precast concrete panels are strong, durable and require minimal maintenance even in coastal locations.

Concept worked closely with a local concrete manufacturer to produce over 1000 tons of panels for the project. Working under strict QA procedures, the panels were fabricated using the pre-stressed/precast method to reduce weight and provide the structural integrity required to hold 1,000,000 litres of fresh water.

Pete Tunney, Concept’s Whale Point Project Manager said, “Ensuring the correct finish was a key driver in the QA process as smooth surfaces on the inside of the tanks are essential to prevent skin abrasions and infections to the fish.”

Huon Aquaculture was established in 1986 and has grown to become Australia’s signature salmon producer farming over 30,000 tons of fish in 2018. Huon are an active member of the Global Salmon Initiative (GSI) set up to improve the sustainability of salmon farming and meeting the global food demand.

Shaun Barry, Director of Concept Tanks said, “We are delighted to be part of this groundbreaking project in Australia and look forward to seeing how the industry develops this system over the coming years.”

According to the United Nations Food and Agriculture Organisation, roughly 32% of world fish stocks are over exploited, depleted or recovering and in need of being urgently rebuilt. With global demand for fresh fish increasing as people ditch red meat in favour of seafood, the use of onshore facilities such as the one at Whale Point are seen as the building blocks towards a more sustainable fish supply.

Concept specialises in design, engineering and construction of precast post-tensioned concrete tanks for the wastewater, resources and aquaculture sectors across Australia.

If you would like to know more about the Concept Aquaculture Tank please visit the website at www.concepttanks.com.au or contact us on 07 3850 4444.