WTT Blog - Tagged with geomorphology

Pre works assessment for Eastburn Beck

Posted on October 20, 2015

Pre works assessment for Eastburn Beck

Eastburn Beck is a tributary of the River Aire in Yorkshire. It is typical of a northern freestone stream / river that has had a chequered history with industrialisation, and as a consequence, it has lost some of its vitality to the constraints of walled banks and a host of weirs. The walls keep long sections straightened and have allowed housing to develop on what would have been a far more sinuous, meandering floodplain. The weirs interrupt the natural progression of pool-riffle sequences and have choked the supply of gravels downstream.

The result is a series of impounded shallow sections with uniform depth, flow, and substrate on the bed, and little in the way of cover within stream. While some of the overly wide, shallow sections with plenty of jutting stones creating small pockets of turbulence provide excellent habitat for juvenile trout (and is also favoured by the local pair of dippers), there is a distinct lack of spawning, fry and adult holding habitat.

Workshop on developing river monitoring for citizen scientists

Posted on September 15, 2015

On behalf of WTT, I recently attended a workshop coordinated by Dr Murray Thompson (a former MSc student of mine), the aim of which was to brainstorm on how to extend and develop river monitoring of restoration projects, particularly for citizen scientists. The workshop was generously supported by Ross Brawn, a good friend and supporter of WTT. The discussions were wide ranging and there were some interesting viewpoints raised by the various contributors (from the Environment Agency, Wildlife Trusts and Rivers Trusts, academia, consultancies, the River Restoration Centre etc).

Why? Well, in the limited number of cases where monitoring (to determine whether the restoration has achieved what it set out to do) is actually considered, then the cost of that monitoring typically is a part of an already limited restoration budget. Funding before and after sample collection, particularly in the longer-term, is not always available. However, the lack of coordinated standardised restoration monitoring has led to a paucity of knowledge about the effectiveness of restoration projects. Where monitoring has been undertaken, the sampling methodologies used were often originally conceived to detect pollution but may be incompatible for detecting ecological recovery.