Formalin treatments before eyeing and hand-picking of Arctic charr (Salvelinus alpinus) eggs - re-evaluating the timing of antifungal treatments

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 Data
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Eggs of Arctic charr (Salvelinus alpinus) were incubated in the hatchery of Telemarkrøye AS in Fyresdal from October 2017 to January 2019. The eggs were 
treated for fungal infections using formalin and hand-picking. One group was treated with 380 ppm formalin three times weekly before the eyed stage, and then
left unpicked. The second group was not treated by formalin before the eyed stage, but hand-picked once weekly during the eyed stage. The third group
was treated with formalin before the eyed stage, and hand-picked during the eyed stage. One control group was left untreated. Weekly recordings of the number
of dead eggs, hatched eggs, and presence of fungal infections were taken during the eyed stage in all hand-picked plots. The total number of dead eggs and
hatched larvae were recorded in unpicked plots at the end of the experiment. 

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 Files
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Data.csv - contains the data recorded during the experiment
FigureS1.tiff - contains a model illustration for fungal infection risk
FigureS2.tiff - contains a model illustration for fungal infection risk
FigureS3.tiff - contains a model illustration for fungal infection risk
FigureS4.tiff - contains a model illustration for fungal infection risk
Table1.xlsx - contains recordings of the water chemistry in the hatchery autumn 2017
Table2.xlsx - contains an overview over the proportions of hatched eggs in the treatment groups
TableS1.xlsx - contains daily temperature measurements
Supplement1-ModelIllustrations.docx - contains descriptions of the model illustrations for fungal infection risk
Supplement2-ModelCode.docx - contains the software code for all statistics in R
Supplement3-temperature.docx - contains a description of the temperature data
Supplement4-FungalInfectionRisk.docx - contains a description and discussion of the models on fungal infection risk
Figure1.jpg - contains a picture of the grid of experimental plots
Figure2.jpg - contains a picture of hatched larvae in the hatching substrate
Figure3.jpg - contains a picture of the experiment showing fungal infections in the plots
Figure4.tiff - contains histograms of the proportions of hatched larvae for all four experimental groups

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Contact information
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Tom Robin Olk 
Faculty of Technology, Natural Sciences and Maritime Sciences
PhD candidates, Faculty of Technology, Natural Sciences and Maritime Sciences

Tel: +47 35 95 25 06
tom.robin.olk@usn.no