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Showing posts from March, 2015

Poacher Turned Gamekeeper: Using Tampons to detect River Pollution from Misconnected Sewers

Professor David (Barney) Lerner and his colleagues in both the University of Sheffield and the Friends of Bradford's Becks have come up with a wildly practical and cheap way to solve a notoriously difficult and expensive problem.

Put Simply, you take a tampon out of its packet, dip it into the stream (or leave it in there if the pollution is suspected to be intermittent). Then take it out and shine a UV torch onto it. The Optical Brighteners used in detergents will fluoresce under the "black light" and you can begin to track down the source of the misconnection.

Full stories are covered here: The Guardian

and here: Wired

The Friends of Bradford's Becks is a great role model for other "Trout in the Town" groups - and we were delighted to have Professor Lerner speaking at our last Urban Conclave (video below).

We are also happy to play a part in the restoration of habitat on the Bradford Beck itself (see here for a recent habitat Advisory Visit report in sup…

What a difference a week makes - contrasting fortunes of headwater streams

I went to visit Stuart Llewellyn and other members of Llanrwst Angling Club last week to assess sections of the main river Conwy – as well as a previously invaluable sea-trout spawning tributary the Afon Cae Person in Llanrwst itself. The hugely positive impacts of works to fill in approximately 200 km (and counting) of drainage ditches on Migniant Moor and return a natural “sponge” effect to the top of the Conwy catchment were visible in the clarity of the (rising!) water following rains. Such enlightened progress makes it even more inexplicable that one of the most important sea-trout spawning tributaries on the system has been trashed through an entirely inappropriate flood-prevention scheme. The culvert that was previously responsible for one prior recorded flooding event on the Afon Cae Person had already been tackled prior to the scheme’s construction. Moreover, alternative schemes to provide additional channel capacity could have been implemented without need to concrete over…