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ARS Home » Southeast Area » Stuttgart, Arkansas » Harry K. Dupree Stuttgart National Aquaculture Research Cntr » Research » Publications at this Location » Publication #384376
Research Project: Enhancing the Production of Hybrid Striped Bass Through Improved Genetics, Nutrition, Production Management, and Fish Health

Location: Harry K. Dupree Stuttgart National Aquaculture Research Cntr

Title: Effect of water hardness/alkalinity and humic substances on the toxicity and bactericidal/fungistatic effect of peracetic acid: suggests for aquaculture practices

Author
item LIU, DIBO - Leibniz Institute Of Freshwater Ecology And Inland Fisheries
item MEINELT, THOMAS - Leibniz Institute Of Freshwater Ecology And Inland Fisheries
item Straus, David - Dave
item GOOD, CHRISTOPHER - Leibniz Institute Of Freshwater Ecology And Inland Fisheries

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 6/15/2021
Publication Date: 9/20/2021
Citation: Liu, D., Meinelt, T., Straus, D.L., Good, C. 2021. Effect of water hardness/alkalinity and humic substances on the toxicity and bactericidal/fungistatic effect of peracetic acid: suggests for aquaculture practices [Abstract]. 20th International Conference on Diseases of Fish and Shellfish, Virtual conference, September 20 – 23, 2021. p. 167.

Interpretive Summary:

Technical Abstract: Highlights • Peracetic acid has strong bactericidal, but limited fungistatic effects at concentrations that are safe to fish embryos. • Bactericidal and fungistatic effects of peracetic acid are likely determined by the oxidation-reduction potential. • Peracetic acid concentration should be increased as the water hardness/alkalinity and dissolved organic carbon increase, and vice versa. • Low hardness/alkalinity waters are risky for peracetic acid use when fish embryos are present due to decreasing the pH in poorly buffered water. Supplementation with dissolved humic substances could lower this risk. • Counting colony forming units may underestimate the number of viable bacteria attached on aggregates.