Ty Walker stands thigh-deep in clear, swift-flowing spring water, tearing fistfuls of overgrown watercress and aquatic grass from the mouth of a 150-foot-long, 10-foot-wide earthen pond. Hundreds of ...

Undercurrent News reported from RAStech 2025, an international, two-day recirculating aquaculture system conference and trade fair, that took place June 9-10, in the US city of San Diego, California.