CWA 18273:2025

This document establishes good practice recommendations for low trophic species hatchery production of commercially produced species, and gives general models that can be utilized for knowledge and technology transfer. The stage at when the hatchery begins and ends will also be established prior to on-growing on land or at sea.
This document focuses on hatchery production of extractive LTS which excludes species that are fed post hatchery/nursery.
The following species are used as example on general production processes:
-  Bivalve; mussels (Mytilus Spp.) and oysters (Crassostrea Spp.), see 5.2.
-  Macroalgae; sugar kelp (Saccaharina Spp.), see 5.3.
-  Echinoderm; sea cucumbers (Holothuria Spp.), see 5.4.