10.23642/USN.7334573Olk Tom RobinTomTom RobinUniversity of South-Eastern NorwayLydersen EspenUniversity of South-Eastern NorwayWollebæk JensUniversity of South-Eastern NorwayDataverseNO2023Otherantifungal treatmentsfish eggsSalvelinus alpinusFormalinHand-pickingAnimal ReproductionAquacultureFish Pests and DiseasesUSN Research Data SupportUniversity of South-Eastern NorwayUniversity of South-Eastern NorwayUniversity of South-Eastern Norway2023-09-152023-09-15https://hdl.handle.net/11250/2649907218662007263179878418718841906550108000192108000192108000192108000192284979978129923234122145811074973314086text/csvimage/jpegimage/jpegimage/jpegimage/tiffimage/tiffimage/tiffimage/tiffimage/tifftext/plainapplication/vnd.openxmlformats-officedocument.wordprocessingml.documentapplication/vnd.openxmlformats-officedocument.wordprocessingml.documentapplication/vnd.openxmlformats-officedocument.wordprocessingml.documentapplication/vnd.openxmlformats-officedocument.wordprocessingml.documentapplication/vnd.openxmlformats-officedocument.spreadsheetml.sheetapplication/vnd.openxmlformats-officedocument.spreadsheetml.sheetapplication/vnd.openxmlformats-officedocument.spreadsheetml.sheet1.0CC BY 4.0DATASET MIGRATED FROM FIGSHARE: <p dir="ltr">Arctic charr (<i>Salvelinus alpinus</i>) eggs in hatcheries are treated for fungal infections using formalin before, and hand-picking during the eyed stage. The relative effectiveness of the treatments was evaluated using a factorial design with the application of weekly hand-picking, and formalin treatments at 380 ppm for 13 minutes three times weekly as factors. The effects of the treatments on total mortality and hatching success were compared using a two-way ANOVA. Both treatments exhibited significant, positive effects on egg survival. Hand-picking during the eyed stage (+ 0.5 to 2.5 % survival to hatch) was found to be more effective than formalin treatments before (+ 0.0004 to 0.8 % survival to hatch). This is likely due to differences in the timing of administration of the treatments. The probability of fungal infections is indicated to vary with time, and a peak seemed to occur at hatch.</p><h3>Article Abstract</h3><p dir="ltr">Arctic charr (Salvelinus alpinus) eggs in hatcheries are treated for fungal infections using formalin before, and hand-picking during the eyed stage. The relative effectiveness of these two treatments was evaluated using a factorial design with the application of weekly hand-picking, and formalin treatments at 380 ppm for 13 minutes three times weekly as factors. The effects of the treatments on total mortality and hatching success were compared using a twoway ANOVA. Both treatments exhibited significant positive effects on egg survival. Handpicking during the eyed stage (+ 0.5 to 2.5 % survival to hatch) was found to be more effective than formalin treatments before (+ 0.0004 to 0.8 % survival to hatch). This is likely due to differences in the timing of administration of the treatments. The probability of fungal infections varied with time, and a peak seemed to occur during hatching.</p>Internal funding