Birds Follow Flyways, Fish Navigate Swimways.

100 pressing scientific questions on global fish migration "Failure to understand how, why, when, and where different fishes migrate limits our understanding of migratory fish and their roles in aquatic and terrestrial ecosystems", state Robert Lennox of the NORCE Norwegian Research Center AS in Bergen, Norway, and coauthors in a 2019 paper in Frontiers in Ecology and Evolution. MAP: Scientists are creating global maps of fish migration routes, or swimways. "The management of fish migration was developed primarily to restore the free movement of fishes in systems fragmented by dams and other in-stream infrastructure", Lennox and colleagues report. [Extracted from the article]