The Aqua Tromøy is a mid-size Live Fish Carrier that can also be used to remove lice and other parasites from the fish, using fresh water.
Having Diesel/Electric propulsion allow the 4 generators to be used to power Reversed Osmosis (RO) to produce up to 6000 Cbm./day of fresh water when not steaming:
https://www.dessaqua.com/aqua-maly-1/aqua-maly-3ry67-76lcr-fz7c5-8g24n-9zsat-ssgw7-ajaan-bydy7-p5mjt
The Coastal Server use a Skarmik 1.5 mechanical de-licing system and cover a wide range of other tasks around fish farms.
PS> The design has already proven it’s seaworthiness:
UPDATE:
Mowi MAY reduce their fleet of chartered vessels operating in B.C. soon: