With major climate-driven shifts in regional and global hydrology on the near horizon, the importance of environmental flows research cannot be overstated. It is one of the best tools that we have for predicting how aquatic species may respond to changes in hydrology.
Most recently, I've begun a much larger scale study of fish-flow associations in Western Hemisphere rivers with Bianca de Freitas Terra (a past post-doc in my lab, now a researcher at the Federal University of Ceará in northeast Brazil). We're using long-term flow records from 107 rivers distributed throughout North, Central, and South America (study basins are outlined in the map below) to test whether the kinds of flow sub-component patterns that I documented in Pacific Northwest rivers are germane. So far, we have confirmed that some of the previous results are broadly applicable, but we've also documented some key differences between tropical, subtropical, and temperate rivers and we're working to get these results published ASAP.