Increased importance of cool-water fish at high latitudes emerges from individual level responses to warming

High-latitude ecosystems are experiencing the most rapid warming on earth, expected to trigger a diverse array of ecological responses. Climate warming affects the ecophysiology of fish, and fish close to the cold end of their thermal distribution are expected to increase somatic growth from increased temperatures and a prolonged growth season, which in turn affects maturation schedules, reproduction and survival, boosting population growth. Accordingly, fish species living in ecosystems close to their northern range edge should increase in relative abundance and importance, and possibly displace cold-water adapted species. 
We aim to document if and how population-level effects of warming are mediated by individual-level responses to increased temperatures, shifts in community structure and composition in high-latitude ecosystems.
We studied 11 cool-water adapted freshwater fish populations in communities dominated by cold-water-adapted species to investigate changes in the relative i..., Please see the README document (\"README_Dataset_PerchHighLatitudesIncreasedImportance.md\") describing the data content and see the published article for description of methods used for collecting the data: Smalås, A., Primicerio, R., Kahilainen, K., Terentyev, P., Kashulin, N., Zubova, E., & Amundsen, P. A. (2023). Increased importance of cool-water fish at high latitudes emerges from individual level responses to warming. Submitted to Ecology and Evolution., The uploaded file(s) is a formatted as .csv files.