Whiteleg prawns have been ASCASC:
Aquaculture Stewardship Council, a worldwide eco-label for responsible cultivated fish.-certified since 2015. The ASC standard ensures that the main negative impacts of tropical shrimp aquaculture are mitigated. In part, this is facilitated by setting realistic standards and establishing a dialogue between many different stakeholders. ASC-certified white shrimp are farmed in pondsPonds:
A cultivation technique whereby fish is cultivated in ponds. This happens extensively (without additional feed) and intensive (with additional feed supplements). .