Smolt and Post-Smolt

Sea Water Access

It has become more common to keep smolt and post-smolt in land-based facilities. The water quality in these plants is of high importance, especially to get the correct salinity and to avoid H2S related mortalities.

Desalination plants from AkvaFresh can be applied to custom the salinity to the desired level, for instance 15 ppt. The desalination process also removes particles, bacteria, and viruses in the water, thus providing a high level of biosecurity. The sulphate concentration is reduced to about 1/1000 of what is common for sea water, thus significantly reducing the risk of H2S formation.

Both Sea Water and Fresh Water Access

With access to both sea water and fresh water, the different water qualities are commonly mixed in order to give the appropriate salinity. In this case, the proper purification of the two water streams is of the utmost importance to prevent the release of reactive metal species.
AkvaFresh membrane technology purifies inlet water by removing metals, particles, and pathogens, thus ensuring optimal growth and welfare conditions.