Tag: rivers

  • Day 10 – One lucky penny

    By Christine A. Parisek . . . Imagine a time you were standing at the edge of a creek – perhaps small pebbles and cobblestone were stacked along the shallow water edge, aquatic vegetation pushed its way in between, and a light breeze rustled the trees around you as the water swirled and lapped playfully…

  • Announcing the 7th International Symposium on River Science

    The International Society for River Science (ISRS) will hold the 7th International Symposium on River Science at the University of California, Davis on October 6-9, 2025. We invite you to attend! The first river symposium was held in 1979 in Norway, and rivers conferences have continued through the decades since, across the globe. Recent conferences…

  • Ash in the Rivers: The Unexplored Consequences of Post-Wildfire Runoff on Freshwater Fish

    By Garfield Kwan & Christine Parisek Wildfires have become a hot topic. Although wildfires are a natural part of some ecosystems (e.g. the chaparral biome), megafires (fires that burn >100,000 acres of land) are becoming increasingly common as the climate continues to warm and droughts intensify. As of late, California’s fourth largest wildfire, the 2024 Park fire, charred…

  • When Rivers Run Dry

    By Ted Grantham, Stephanie Carlson, and Albert Ruhi As we move into the full swing of summer, water managers are paying close attention to the remaining snowpack in the Sierra Nevada. Each year, water from melting snow flows into rivers, creating important environmental cues for native freshwater species and filling reservoirs, just as agricultural water demands peak…

  • How dam operators can breathe more life into rivers

    By Sarah Yarnell Dams are no friend to biodiversity. Once impounded, a river answers first and foremost to human needs, be it water supply, energy production or flood protection. Releases are measured and timed to satisfy these demands. As a result, the river downstream loses much of its natural variability in timing, volume and spread of…