Journal article
Hydrogen Peroxide Treatments Administered to Hatchery‐Reared Burbot: Assessing Treatment Regimes from Embryonic Development through Juvenile Rearing
North American journal of aquaculture, Vol.75(1), pp.50-56
01/2013
Handle:
https://hdl.handle.net/2376/113165
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 μL/L H2O2 without significant reduction in survival. Preflexion larvae tolerated only 100 μL/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 μL/L H2O2, but by the juvenile stage sensitivity again increased to 100 μL/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 μL/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.
Metrics
9 Record Views
Details
- Title
- Hydrogen Peroxide Treatments Administered to Hatchery‐Reared Burbot: Assessing Treatment Regimes from Embryonic Development through Juvenile Rearing
- Creators
- Mark P Polinski - National Center for Marine Conservation and Resource Sustainability, University of Tasmania, Locked Bag 1370Nathan R Jensen - U.S. Geological Survey, Upper Midwest Environmental Sciences Center, 2630 Fanta Reed RoadJohn Foltz - Aquaculture Research Institute, University of Idaho, Box 441136Susan C Ireland - Kootenai Tribe of Idaho, Post Office Box 1269Kenneth D Cain - National Center for Marine Conservation and Resource Sustainability, University of Tasmania, Locked Bag 1370
- Publication Details
- North American journal of aquaculture, Vol.75(1), pp.50-56
- Academic Unit
- Center for Reproductive Biology
- Publisher
- Taylor & Francis Group
- Number of pages
- 7
- Grant note
- Kootenai Tribe of Idaho and the Bonneville Power Administration (30729; 37267; 198806400)
- Identifiers
- 99900547585001842
- Language
- English
- Resource Type
- Journal article