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Showing posts from 2017

Habitat to Help Trout and Native Crayfish in a Midlands Brook

I was recently able to use the Trout in the Town project to provide two days of training in habitat work for the Friends of Bilbrook (find them on Facebook here: https://www.facebook.com/Bilbrookfriends/ ).


We used some very simple techniques of woody material introduction and stabilisation to help create submerged "cover" habitat for fish (and hopefully the native crayfish that have been recorded in the brook). Some simple tweaks to those techniques also helped to promote more diverse depth over the cross-section of the brook at selected points.

At the same time as creating localised bedscour - the installed material also encourage patches of sediment deposition. The combination of those actions produce a pattern of separation between areas of fine silt and coarser bed material in a patchwork fashion. In this way, a greater variety of micro-habitats are created and this creates many more opportunities for aquatic species. At the same time, it also creates the variety needed…

How Volunteers in Sheffield Make Big River Habitat Projects Successful

You've done a big, ambitious partnership project to deculvert a section of urban stream, but now the civil engineering contractors have gone to their next job. The site is left to mature...what next? Very seldom does this kind of project have any budget for ongoing ecological monitoring (which is a frequent and justified criticism of habitat improvement works - the lack of ecological effect data).

The same can be said for general "husbandry" of the site - whether it be litter or invasive plant control; or even fairly substantial running repairs...

Step in SPRITE (Sheffield Partnership for Rivers in Town Environments) whose site you can check out on http://www.sheffieldsprite.com, the Sheffield Trout in the Town group and a supporting donation of pre-established planted coir products from Salix River and Wetland Ltd. (with their site here: https://www.salixrw.com)

You can see SPRITE talking about their aquatic invertebrate monitoring and see their repair and site care wo…

Starting Work on The River Went in Yorkshire

Although this is the start of what is planned to be a wider project that tackles multiple issues throughout the full length of this heavily-modified river, the first set of works are shaping up really pleasingly. Alec and the rest of the YWT team have made impressive progress to organise and deliver the program of works that we designed on just around 1 km of the River Went, on a project supported by the Environment Agency.
It was particularly impressive due to a last minute loss of the previous project manager due to a career move. In the video you can see how Alec worked with the WTT to power through the first, steep part of the learning-curve on in-river structural improvements to a heavily-modified river.
The main challenges stemmed from the historic realignment of the channel (and general lack of in-stream structure/debris necessary to create vital habitat for different lifecycle stages of fish and other aquatic life). Coupled with the relatively low gradient and fine particulate m…