Abstract:Future warming scenarios are predicted to result in an increased frequency of high, and potentially stressful, temperatures in aquatic ecosystems. Here we examined whether the performance of wild underyearling Atlantic salmon (Salmo salar) in Scottish streams stocked with identical egg densities was influenced by thermal stress.Biomass and density declined with degree hours exceeding 23 C, indicating apparent mortality or emigration as a possible result of exposure to high temperatures. These results strengthe… Show more
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