Coho climate challenge: identifying at-risk populations:  “A wealth of data about the past can make it easier to predict the future. Biologists studying economically valuable salmon often have the advantage of working with extensive, long-term ecological data sets. A long history of using dams to regulate water also gives these scientists access to extensive data on environmental conditions in the rivers salmon inhabit. Researchers in Oregon leveraged abundant data on river conditions and fish passage at dams to assess the … Continue reading SCIENCE NEWS: Coho climate challenge: identifying at-risk populations; Chinook salmon declines related to changes in freshwater conditions; Forecast errors and uncertainties in atmospheric rivers; Rising sea levels and river delta growth; and more …