Environment Agency: The amazing Twaite Shad is a herring which enters a river to reproduce each May, hence the local name of “May fish”. In fact it is said to be so predictable you could set your calendar by its arrival.
Environment Agency: Weirs such as the Diglis weir on the River Severn, cause problems for Shad as these fish don't leap
Environment Agency: Lamprey are eel-like creatures, once eaten by Vikings, regarded as a luxury food by monarchs and served poached in red wine by Romans.
Environment Agency: The smelt is a small species of fish, related to trout and salmon. They live in coastal areas of Britain, like this one found in the mouth of the river Thames
Environment Agency: The Spined loach spends most of its life in and around the silty bed of rivers, streams, drains and lakes. It can live in oxygen poor environments, spawning multiple times in a season to maximise the survival of its young.
Environment Agency: One of the last adult vendace recorded in Bassenthwaite Lake
Environment Agency: Shad, like this one pictured have some rather unique characteristics
Environment Agency: Derwentwater, the last stronghold for vendace in England
Environment Agency: Arctic Char swimming in the River Liza
Environment Agency: A Brook lamprey found in Kex Beck, Yorkshire