Freshwater colour reveals fish welfare during wellboat treatments against salmon lice

Populærvitenskapelig artikkel

Publiseringsår: 2025
Tidsskrift: FishfarmingExpert
Eksterne nettsted: Cristin
NIVA-involverte: Rolf David Vogt; Sara Calabrese; Ole-Kristian Hess-Erga; Endre Steigum
Forfattere: Rolf David Vogt, Endre Steigum, Silje K. Bekkeli, Janaki Rajakumar, Sara Calabrese, Ole-Kristian Hess-Erga

Sammendrag

The colour of wellboat water can reveal how the fish are doing. Source-water colour usually stems from dissolved natural organic matter (DNOM, or humic substances), which can help protect fish from toxic levels of zinc. lf the water becomes more coloured during treatment, however, the tint is likely from blood released by injured fish.