What's a fish pass? 🐟️🌊⁠ ⁠ A project on the river Severn, the UK’s longest river, called Unlocking the Severn, is designed to get twaite shad, a fish whose numbers in British rivers have declined in recent decades, back to its historic spawning grounds.⁠ ⁠ To do this, a series of fish passes have been built. These special channels allow shad, which are unable to leap like salmon, and other fish to overcome weirs on a stretch of the river. ⁠ ⁠ “Ultimately, what we want from these passes is to m

River Severn bursts its banks and homes evacuated as water levels continue to rise