Recirculating Aquaculture Systems (RAS)

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This is a great explainer video by The Conservation Fund on land-based fish farming.  90% of US seafood is currently imported and 2x the current supply will be needed by 2050, so there is a growing need for new ways to provide high-quality, local fish without putting more pressure on our oceans.  Recirculating Aquaculture Systems (RAS) is one solution, and this is a very informative 2-minutes!

  • Land-based RAS is a sustainable, local way to farm healthy fish.
  • It uses tanks where water is continuously filtered and recycled and waste can be used as fertilizer for farmers.
  • It provides a controlled and traceable environment, without the use of antibiotics or hormones.
  • It can be used anywhere, so fish can always be locally grown, helping local economies and providing a fresher product.
  • Land-based RAS has minimal impact on the environment, with 1/2 the carbon footprint of imports, and is water efficient, using 99% recycled water + it recycles nutrients and by-products, and conserves wild fish 
  • Additionally, RAS fish are fed sustainable feeds that don’t require wild caught fish to be used in their feeds, providing a 0% fish-in / fish-out ratio.
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