ASSESSING THE TOXICITY OF PERACETIC ACID TO EARLY ATLANTIC SALMON SALMO SALAR LIFE-STAGES
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Type of Work50 pages
DepartmentHood College Biology
ProgramBiomedical and Environmental
Microbial pathogens in recirculating aquaculture and egg incubation systems can cause elevated mortality and decreased production. Peracetic acid (PAA) is an effective disinfectant; however, its toxicity to early life stages of Atlantic salmon (Salmo salar) has not been assessed. This research determined the 24-hour LC50 value of PAA for three early life stages of Atlantic salmon: eyed eggs, fry, and fingerlings. Toxicity Relationship Analysis Program (TRAP) LC50 values for eggs treated for 5 and 10 minutes were 781.5 mg/L and 485.0 mg/L PAA, respectively. Trimmed Spearman Karber (TSK) LC50 values for eggs treated for 5 and 10 minutes were 771.1 mg/L and 462.1 mg/L PAA, respectively. TRAP LC50 values for fry and fingerlings were 4.0 mg/L and 5.3 mg/L PAA, respectively. TSK LC50 values for fry and fingerling were 4.1 mg/L and 5.3 mg/L PAA, respectively. These LC50 values provide guidance for developing safe PAA treatment protocols for Atlantic salmon eggs, fry, and/or fingerlings.