Bacterial and fungal pathogens in recirculating aquaculture egg incubation systems can cause elevated mortality decreased production. Peracetic acid (PAA) is a relatively low-cost, safe, effective disinfectant; however, its toxicity to early life stages of the Atlantic salmon (Salmo salar) has not been assessed. The 24-h LC50 value PAA was determined for three salmon: eyed eggs, fry (~0.17 g), ...