Table 1 River basins differ by basin size and degree of temperature change. River basin characteristics by basin area (km²), historical (1990–2021) and future (2034–2065) temperature classifications, and the difference in average summer temperature (future mid-century temperature- historical temperature). Temperature classifications are colored based on Fig. 1: <10 °C (“coldest”, yellow), 10–11 °C (“intermediate”, orange), and > 11 °C (“warmest”, red).

From: Warming Alaskan rivers affect first-year growth in critical northern food fishes