Evaluation Of Three Embryo Disinfectants On Hatching Success In Four Freshwater Ornamental Fish Species
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Evaluation Of Three Embryo Disinfectants On Hatching Success In Four Freshwater Ornamental Fish Species

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  • Journal Title:
    North American Journal of Aquaculture
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  • Sea Grant Program:
    FLSGP (Florida Sea Grant)
  • Description:
    Maintaining optimum conditions for embryo incubation is a critical consideration in finfish aquaculture. To this end, prophylactic disinfectant protocols have been widely used in culture practices for many finfish species. However, empirical evaluations of safety and effectiveness for disinfectants in ornamental fish species are uncommon. We evaluated hatching success in embryos of four ornamental fishes (Redtail Sharkminnow Epalzeorhynchos bicolor, Rainbow Sharkminnow E. frenatum, Featherfin Squeaker Synodontis eupterus, and Blotched Upsidedown Catfish S. nigriventris) after a 15-min immersion in one of three common disinfectant solutions: formalin at 1,500 mg/L, iodine at 100 mg/L, and hydrogen peroxide at 1,000 mg/L. A 15-min immersion in hatching water served as the control. All disinfectants were administered according to either the manufacturer's recommendation or protocols found in published literature for other species. At the tested concentrations, hydrogen peroxide and formalin can be safely used as prophylactic treatments for the majority of species evaluated, with no detrimental effects. In addition, Redtail Sharkminnow embryos treated with formalin exhibited numerically higher hatch success with less variation among replicates than the control treatment. For all species, a 15-min immersion in 100-mg/L iodine resulted in significantly lower hatching success when compared with all other treatments.
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    North Am J Aquaculture, 82: 63-70
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  • Document Type:
    Journal Article
  • Rights Information:
    Accepted Manuscript
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    The NOAA IR provides access to this content under the authority of the government's retained license to distribute publications and data resulting from federal funding. While users may legally access this content, the copyright owners retain rights that govern the reproduction, redistribution, and re-use of this work. The user is solely responsible for complying with applicable copyright law.
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    Submitted
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