Replication data for: Formalin treatments before eyeing and hand-picking of Arctic charr (Salvelinus alpinus) eggs – re-evaluating the timing of antifungal treatments ...

• Main Authors: Olk, Tom Robin, Lydersen, Espen, Wollebæk, Jens
• Format: Dataset
• Language: unknown
• Published: University of South-Eastern Norway 2023
• Subjects: Animal reproduction and breeding; Aquaculture; Fish pests and diseases; Arctic charr; Arctic; Salvelinus alpinus
• Online Access: https://dx.doi.org/10.23642/usn.7334573.v2; https://usn.figshare.com/articles/dataset/Formalin_treatments_before_eyeing_and_hand-picking_of_Arctic_charr_Salvelinus_alpinus_eggs_re-evaluating_the_timing_of_antifungal_treatments/7334573/2

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 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.Article AbstractArctic charr (Salvelinus alpinus) eggs in hatcheries are treated for fungal infections using formalin ...