Impact of short photoperiod length on smoltification (RNAseq). Impact of short photoperiod length on smoltification (RNAseq)

This experiment was set up to evaluate the effect of the duration of a short photoperiod (winter-like conditions, 8 hours light, 14 hours dark) on the smolt transcriptome in liver and gill. Fish were kept at constant light before fish were split between treatment tank or control tanks. Treatment tanks either experienced 2 weeks of short photoperiod or 8 weeks of short photoperiod. The control fish were kept in constant winter-like conditions. After winter, the fish were brought back to constant light for 4 weeks. Sampling was done before transition to short photoperiod, at the end of winter period and four weeks after transition back to constant light. Control fish were sampled at the same time points as the treatment group.