Part I: Salmonids in fresh water
United Kingdom
Brown trout (Salmo trutta) – Rainbow trout (Oncorhynchus mykiss) – American brook trout (Salvelinus fontinalis) – Salmon (Salmo salar) – Arctic charr (Salvelinus alpinus) – Grayling (Thymallus thymallus) – American lake trout (or grey trout) (Salvelinus namaycush) – Huchen (Hucho hucho)
| Production systems | Ongrowing farm systems must be fed from open systems. The flow rate must ensure a minimum of 60 % oxygen saturation for stock and must ensure their comfort and the elimination of farming effluent. |
| Maximum stocking density | Salmonid species not listed below 15 kg/m3 Salmon 20 kg/m3 Brown trout and Rainbow trout 25 kg/m3 Arctic charr 25 kg/m3 |