Because the weir has never restricted Barbel movements, the river became a top 5 barbel river in the country with the weir firmly in its place, barbel arent going up the Teme as they once did from the Severn, because barbel numbers are are much lower and continuing to fall on the lower severn and the river Severn as a whole, one thing that fuels the colonisation instincts of the barbel and to continually push upstream and into tributaries is barbel behind barbel......thats why the river Luggs barbel numbers are down, the Teme, the Kennet, the Cherwell, the Dove, the Derwent etc. barbel populations are in crisis on most rivers where they were once strong and stable, so the first thing you notice are the tributaries decline in barbel populations, they show a significant reduction quickly, I have been going on for nearly 10 years about perilous state of the Temes barbel population and warned of its imminent collapse, well here we are, the Temes barbel population has collapsed.