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Hydrogen peroxide treatments administered to hatchery-reared burbot: assessing treatment regimes from embrionic development through juvenile rearing

Citation

Polinski, MP and Jensen, NR and Foltz, J and Ireland, SC and Cain, KD, Hydrogen peroxide treatments administered to hatchery-reared burbot: assessing treatment regimes from embrionic development through juvenile rearing, North American Journal of Aquaculture, 75, (1) pp. 50-56. ISSN 1522-2055 (2012) [Refereed Article]

Copyright Statement

Copyright 2012 American Fisheries Society

DOI: doi:10.1080/15222055.2012.728184

Abstract

Burbot Lota lota is an emerging aquaculture species, in which fungal infestations during early life stage development are common. In this study, the tolerance of Burbot to external hydrogen peroxide (H2O2) treatment regimes was examined during four early life stages to determine species and life stage-specific sensitivity. Yolk-sac larvae tolerated three 1-h treatments up to 250 ěL/L H2O2 without significant reduction in survival. Preflexion larvae tolerated only 100 ěL/L H2O2 before survival was affected. In both cases, decreased survival was only observed after administration of three consecutive treatments. Flexion larvae tolerated up to 250 ěL/L H2O2, but by the juvenile stage sensitivity again increased to 100 ěL/L H2O2 before survival was affected. In these latter stages, decreased survival was observed immediately following the first H2O2 treatment, suggesting a mechanism for toxicity that is different than that in previous life stages. As has previously been shown, H2O2 can be effective for controlling aquatic bacteria and fungus at or below 250 ěL/L, and our results indicate that H2O2 concentrations currently used during Burbot egg incubation may be extended into the larval rearing stage for effective fungal control without negatively affecting survival of either eggs or newly hatched larvae. Additionally, treatment regimes may be continued through juvenile development for the purpose of controlling external pathogens in the hatchery production of Burbot.

Item Details

Item Type:Refereed Article
Research Division:Agricultural and Veterinary Sciences
Research Group:Fisheries Sciences
Research Field:Fish Pests and Diseases
Objective Division:Animal Production and Animal Primary Products
Objective Group:Fisheries - Aquaculture
Objective Field:Aquaculture Crustaceans (excl. Rock Lobster and Prawns)
Author:Polinski, MP (Mr Mark Polinski)
Author:Cain, KD (Associate Professor ken Cain)
ID Code:82869
Year Published:2012
Web of Science® Times Cited:1
Deposited By:NC Marine Conservation and Resource Sustainability
Deposited On:2013-02-20
Last Modified:2013-06-12
Downloads:0

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