DEM said there hasn't been a major change in the trout ecosystem over the past few decades, but some ponds and lakes won't ...

Blue-green algae naturally occurs in inland waters, according to the Local Democracy Reporting Service. It can produce toxins called "harmful algae blooms" that can kill wild animals, farm ...

Sea trout have not migrated up a river because it is too dirty, an anglers group has said. Fishermen have not seen the usual migration of sewin up the Towy River in Carmarthenshire, saying algae ...