A wide window of migration phenology captures inter‐annual variability of favourable conditions: Results of a whole‐lake experiment with juvenile Pacific salmon Freshwater Biology

Survival of post-larval and juvenile organisms can depend on multiple seasonally-fluctuating features, including thermal conditions and food availability. Alterations in the phenology of either consumers or their prey might decouple trophic relationships and reduce consumer growth and survival, and this potential for mismatches is especially pronounced in migratory organisms that change habitats. Juvenile sockeye salmon (Oncorhynchus nerka) migrate from natal streams to lake habitats, and we hypothesised that their in-lake growth and survival depends on whether timing of migration matches suitable lake conditions.