More new fish passes – at Burley Mills Weir and St Ann’s Mills Weir

St Anns Mills fish passTwo new fish passes have been opened at Burley Mills Weir and St Ann’s Mills Weir on the River Aire alongside Commercial Road in Kirkstall, Leeds.

The passes have been built by the Aire Rivers Trust in partnership with Leeds City Council and the Environment Agency.

The Burley Mills Fish Pass, located in attractive surroundings, can be seen from the public viewing point at the weir.

The £400,000 Kirkstall project was funded by Defra’s Catchment Restoration Fund which is administered by the Environment Agency. Leeds City Council will be taking ownership of the two fish passes.

The fish passes will enable the current fish populations of brown trout and coarse fish to move freely past the weirs to find the best places to feed, shelter, spawn and grow.

In the longer term the two fish passes will be a part of a chain which will allow salmon and sea trout to reach their historic spawning grounds upstream in Leeds, Bradford and the Craven District of North Yorkshire.

The weirs at Kirkstall have been a barrier to upstream movement of fish for around 200 years and the fish passes will not only improve fish stocks but will also improve the general ecology of the river.

Kevin Sunderland, Chairman of the Aire Rivers Trust, said that water quality improvements over the last 40 years have led to improved fish populations and this has meant that fish passes have become necessary to allow the river to reach its full potential. He also paid tribute to the help and co-operation which the Trust had received from various departments within Leeds Council and thanked the Environment Agency for providing the necessary funding and technical advice.

Neil Trudgill, Fisheries Technical Specialist at the Environment Agency said: “We are delighted to have worked with the Aire Rivers Trust on this project and congratulate the Trust on completing the project early and under budget.

“Angling is very popular in Leeds city centre and these passes will help improve our fish populations to benefit people and the environment. When fish are able to move freely up and down rivers, they are also less vulnerable to the occasional accidental pollution incidents that still occur in our rivers.”

[Environment Agency Press releases, this Press Release]

Fish in the River Aire

River Aire Fish 2012

Kevin Sunderland, our Chairman, had been busy. He has produced an excellent paper on fish populations in the River Aire. The latter part relates to each species of fish and where it can be found. The first part is a bit more general and may be of interest to those who aren’t particularly fish people.

An edited version of this report appeared in The Naturalist  No 138 (2013).

River restoration wiki

The RESTORE partnership has a site documenting the case studies of river restoration project studies at restorerivers.eu. The link riverwiki.restorerivers.eu also gets you to the same site

More specifically the Rodley and Kirkstall projects case studies can be seen at

Information about the rivers wiki can be found at the River Management Blog website  http://therivermanagementblog.wordpress.com and background information about the wiki can be found at European Centre for River Restoration (ECRR.org)

Rodley fish pass in the Yorkshire Post

Promises of a new wealth of fish in our waterways

The Yorkshire Post carried a nice piece about the Rodley Fish pass, here is the text…

Rodley Fish PassUntil recently the possibility of salmon and sea trout swimming in the Aire seemed as likely as pigs flying in the sky. It has been almost two centuries since the people of Leeds, Bradford and the surrounding countryside have had the pleasure of observing, or indeed catching, such creatures. But this is about to change.

The Aire Rivers Trust and the Environment Agency now agree that salmon and sea trout, along with eels and brook lamprey, will begin repopulating the Aire within the next five years.

It is the region’s industrial legacy, in the form of a series of more than 20 weirs coupled with poor water quality that has prevented migratory fish from reaching the upper river. During the industrial revolution, the Aire was pumped with waste from factories and urban centres, and as recently as the late 20th century, outdated sewage treatment plants prolonged its water pollution problems.

But now, thanks to better regulation and de-industrialisation, water quality has improved and is no longer a limiting factor for fish. Even in urban centres like Leeds, grayling, a fish which seeks out the cleanest water, have been spotted.

Freshwater trout now breed throughout the Aire catchment area, right up to where the river rises at Malham. Downstream, the Environment Agency has caught sea trout weighing up to 8lbs, and recorded up to 25 salmon an hour at Knottingley weir.

As fish have returned, so have otters and heron. Otters have been caught on CCTV at Granary Wharfe in Leeds city centre and are increasingly common in the upper catchment area.

The return of salmon and sea trout to the upper river is now prevented only by a handful of man-made weirs. Pete Turner, fisheries officer at the Environment Agency, says: “Ten years ago you might have looked at it and had your head in your hands, but actually it’s happening. Structures and passes are being built.

“The River Aire’s my river. It has its issues, but we’re putting in place what we think is the right thing.”

Kevin Sunderland, chairman of the Aire Rivers Trust, is equally passionate about the river’s fisheries. He says the possibilities for salmon and sea trout will change after the biggest remaining challenge, the weir near Knostrop sewage treatment works in South Leeds, has been developed.

At both Knostrop and Crown Point, a smaller weir between Knostrop and Leeds Railway Station, new moving weirs will be built as part of the £50m Leeds Flood Alleviation Scheme. Construction is due to begin this year and is scheduled to be completed next year. It means that if the rains are favourable, salmon and trout will be able to reach West Yorkshire’s great cities.

“Knostrop is the killer,” says Mr Sunderland.

“I’ve seen salmon and trout there trying to get up. It’s the shape of it. It projects out at the bottom, which make it very hard for the fish to climb.”

Beneath Leeds Railway Station itself, the river flows under the Dark Arches, a complex of massive underground channels, roads and walkways belonging to Network Rail, which is working with the Environment Agency to ensure fish can get through.

Mr Sunderland believes minimal intervention will be required. “It might just be a matter of bolting in some boulders to slow the current and give the fish somewhere to rest.”

A couple of miles up the river, the Aire Rivers Trust has been building two fish passes in Kirkstall with support from Leeds City Council and Defra’s Catchment Restoration Fund. Its weir at St Anns is now operational and work is underway at Burley Mills.

Last year the Environment Agency completed a new fish pass at Rodley, between Leeds and Shipley which is owned and maintained by Yorkshire Water. Between 2015 and 2020, Yorkshire Water will be investing £10m on a further 20 barriers to fish passage on Yorkshire rivers and their tributaries.

Neil Trudgill of the Environment Agency says: “The fish bypass at Rodley is an essential step in the recovery of the river’s fish populations.

“The naturalised design will provide a passage around the weir as well as a habitat in which fish and other aquatic life can actually live, feed and grow.”

Further upstream, at Hirst Weir in Shipley, members of Bradford Amateur Rowing Club are working with the Environment Agency to raise money for repairs to the weir. Work on designs for a fish pass, which will be installed as part of the project, is underway.

But although progress has exceeded expectations, there’s still work to do. For example at Chapel Haddlesey, the tidal limit of the Aire, and Armley Mills, next to Leeds Industrial Museum, the building of fish passes has stalled due to interest in hydro energy projects.

The Environment Agency has already produced a design for a fish pass at Armley Mills, but the scheme is on hold while Leeds City Council evaluates the site. There is no completion date for the project yet, and currently no schedule for construction.

However, at Armley, Chapel Haddlesey and elsewhere, developers of hydro projects are obliged to build fish passage into their plans.

Knottingley Weir remains one of the biggest barriers to fish passage on the Aire and Calder river system. Migratory fish are able to ascend the weir when it floods in periods of heavy rainfall, but their progress upstream can be delayed for months in dry summers. A new fish pass has been mooted.

More work on our waterways can be expected. Under the Water Framework Directive, the Government is committed to a self-sustaining population of migratory fish in the Aire and other Yorkshire rivers by 2021.

Kevin Sunderland, chairman of the Aire Rivers Trust, says it is on track to beat that target. “The river’s set to impro ve to a standard which couldn’t have previously been considered possible.”

 

Invasive Species – Law Commission report

11 February 2014, Today the Law Commission published its final report on the control of invasive non-native species. See the Law Commission Wildlife Law project pages

Reference number: LC342

Background

Law Commission wildlife project and the species control report

In July 2011, the Law Commission began a project on wildlife law. Its terms of reference were: to review the law on the protection, management, usage and welfare of wildlife in England and Wales, and to make recommendations for its simplification and modernisation.

Project should open up waterways to migrating fish

A NEW fish pass in Leeds will form part of a wider plan to help migratory fish and wildlife swimming back to repopulate waterways.

Yorkshire Water, which owns land forming part of Rodley Nature Reserve and one side of a weir at the site, hopes a new fish pass at the site will help salmon, sea trout and eels to ascend to the River Aire.

Kathryn Turner, Biodiversity Advisor at Yorkshire Water, said they are committed to improving the water and bring back freshwater wildlife. She said: “I had a male otter chattering at me from the undergrowth on the bank and saw dippers and grey wagtails already making it their home.”

Now four more fish passes on the River Aire are at the planning stage with two – Knostrop Weir and Crown Point Weir in Leeds – expected to have new moving weirs built as part of Leeds Flood Alleviation Scheme, aimed at preventing flooding during extreme weather conditions, at a cost of just over £50 million.

Two further passes, at Ann’s Mills Weir and Burley Mills Weir in Kirkstall, are planned by the Aire Rivers Trust and would be financed with funds obtained by DEFRA.

Kevin Sunderland, Chairman of the Aire Rivers Trust said: “A pass was installed in Castleford Weir in 2007. But further fish passes are necessary at Chapel Haddlesey and Knottingley, downstream of Leeds to improve fish passage.”

The River Aire was full of migrating fish until the Industrial Revolution polluted many rivers – but according to Mr Sunderland they are now back to 1830s conditions.

The work should be completed by March 2015.

From The Yorkshire Post

Rodley Weir and Fish Pass

Rodley Fish Pass Upstream View R Rodley Fish Pass EntranceI thought you might be interested to see these photos of Rodley Fish Pass now that it has been officially opened. Yorkshire Water and their consultants ARUP have done a good job on this. YW will be monitoring the efficiency of the pass by electronic tagging of some captured fish. The tags will then be traced and the fish followed through the pass by receiving devices on the posts at the side of the fish pass.

Brown trout are usually seen attempting (and failing) to ascend the Rodley Weir in October / November. If none are seen this year, it will mean that the fish are finding the pass, swimming up through it and bypassing the weir.

UPDATE

NEW ENVIRONMENTAL improvements have been completed to help save wildlife at a popular Leeds nature reserve.

The Rodley Weir bypass on the River Aire, close to Rodley Nature Reserve, has been designed to allow fish to swim around the weir and upstream so they can search for new habitats.

Previously, the weir formed a man-made barrier which prevented fish moving up the river.

Solar powered detectors around the site will also track the fish as they go through the new bypass.

The number of fish living in the River Aire has recently risen thanks to modern water treatment processes and better pollution controls.

The river is now home to a large number of salmon, trout, eels and lampreys.

Dave Nesham, trustee director of Rodley Nature Reserve, said: “We were delighted to work on such an important project.

“Anything that further improves biodiversity in the area can only be a good thing.”

Mr Nesham added: “We’ll be taking accompanied tours down to see the pass, with the hope being that we’ll see plenty of fish using it.”

The work was carried out earlier this year by Yorkshire Water’s partner MMB.

The river bypass work was supported by a grant from the Environment Agency.

Neil Trudgill, from the Environment Agency, said: “The fish bypass at Rodley is an essential step in the recovery of the river’s fish populations.

“The naturalised design will provide a passage around the weir as well as a habitat in which fish and other aquatic life can actually live, feed and grow.”

Aire Fish Passage Schemes (June 2013)

Aire Fish Passage Schemes (as at June 2013)

Some progress in improving fish passage on the Aire has been made over the last few years. The Environment Agency fish passes at Fleet and Lemonroyd were both finally opened in 2004. Castleford fish pass was opened in 2007 and Rodley in 2012. There is a strong possibility that a further five or more will be opened in 2014 / 2015. If these go ahead, the biggest remaining barrier will be at Knottingley. Other major weirs in Leeds and downstream which will still require fish passes are at Chapel Haddlesey, Armley, Kirkstall Abbey and Newlay.

Chapel Haddlesey Weir

The Canal and River Trust is still progressing its hydro / fish pass scheme on the tidal weir at Chapel Haddlesey (near Eggborough Power Station). The scheme, first proposed in 2008, is still in the planning / discussion stage.

Knottingley Weir

Knottingley Weir remains one of the biggest barriers to fish passage on the Aire and Calder river system. The weir does flood out in periods of heavy rainfall and migratory fish do ascend it at those times. Unfortunately, upstream progress can be delayed for a number of months in dry summers.

The Canal and River Trust (CRT) has withdrawn its expressed interest in a hydro on the weir which means that public funding can now be used to obtain a fish pass. Discussions are ongoing between CRT, the Environment Agency and Wakefield Council to explore the possibility of including a fish pass in a wider regeneration scheme within the Knottingley area.

Knostrop and Crown Point Weirs (Leeds)

Leeds Council obtained funding for the Leeds Flood Alleviation Scheme (FAS) in early 2013. The FAS envisages removal of the weirs at Knostrop and Crown Point and their replacement with moveable weirs which can be opened when the river is in flood.

Leeds Council expects to commence work on the two fish passes in January 2014 and completion by December 2014. Knostrop Weir has long been the biggest impediment to fish passage on the River Aire and it is believed that fish cannot ascend the present weir. The planned fish pass there will allow migratory fish to progress through the centre of Leeds as far as Armley, if not further.

Armley Mills Weir (Leeds)

Although discussions are continuing between Leeds Council and the Environment Agency regarding a joint fish pass / hydro scheme at Armley, progress has more or less come to a halt.

St Ann’s Mills and Burley Mills Weirs (Kirkstall, Leeds)

The Aire Rivers Trust and Leeds Council have been successful in their bid for Catchment Restoration Funding to improve fish passage at these two weirs. Preliminary work is already in progress and the fish passage work is scheduled to be completed by March 2015.

Rodley Nature Reserve Weir

Yorkshire Water’s fish pass at Rodley Nature Reserve opened in late 2012. Minor alterations and improvements have been carried out since that time and work is now complete although the fish pass has not been officially opened as yet. There will be restricted access to the fish pass but the public will be allowed to visit the fish pass on conducted tours by prior arrangement with Rodley Nature Reserve.

Salts Mill Weir (Bradford)

Bradford Council’s proposed hydro / fish pass is still under consultation. The Council’s proposals can be seen by looking at Hydro Power Scheme – Saltaire on the internet.
Other searches:Hydropower
Documents: Feasibility Report (PDF 15.35 MB, 142 A4 pages). ((Searches on the http://www.bradford.gov.uk/ itself are singularly useless – a BMDC website problem, searches from the google home page, your browser search bar or a search results page work fine.))

The Aire Rivers Trust (ART) is neither supporting nor opposing the hydro / fish pass scheme as it believes that the decision should be left to local people. ART has made some constructive comments as regards the design of the proposed fish pass. Whether the hydro goes ahead or not, ART would hope that the Council can find funding for a fish pass on this major barrier to fish passage.

Hirst Mill Weir (Saltaire, Bradford)

During the high river levels in summer 2012, the weir at Hirst Mill became unstable and Bradford Amateur Rowing Club had to carry out emergency repairs. The repairs involved the placement of a large amount of stone in the river below the weir. The Rowing Club is looking at a long term solution which may well consist of a rock ramp fish pass which will also support the structure of the weir.

Systagenix Weir (Gargrave)

With the intention of putting a fish pass on this weir, the Aire Rivers Trust commissioned a feasibility study for a fish pass and received the results of the study in autumn 2012. Since that time the management at Systagenix (formerly known as Johnson & Johnson) has been obliged to cease taking water from the weir goit and the weir is now effectively redundant.

As far as is known, to date no decision has been made as to whether weir removal is an option or how fish passage can be improved for the long term.

BHS and CIWEM meetings

BHS – British Hydrological society
CIWEM – Chartered Institution of Water and Environmental Management

Upcoming meetings

The British Hydrological Society (BHS) and CIWEM have a joint meeting at Sheffield University on 3 July. (Hydro-Power for Hydrologists.)

Lancaster University are hosting a British Hydrological Society meeting and workshop on 11th/ 12th July 2013 entitled ‘Data-based mechanistic methods for hydrological modelling, forecasting and emulation: research and water sector applications’.

Past meetings, streaming Audio and PowerPoint slides

The 3 BHS meetings held in Leeds (Jan, Feb, Mar 2013) are available online. Streaming Audio with .PPT

I intend to update these as more meetings com up or media from past meetings come available.

Invasive species research – your help needed (2)!

Dear readers,

From: Nigel Taylor

Message: Dear Sir/Madam,

I am a new PhD student at the University of Leeds, investigating the
impacts of and interactions between invasive species. I am focusing on the
signal crayfish and Chinese mitten crab.

It seems as if the River Aire could provide some interesting field sites
where these two invaders may meet, with crayfish moving downstream and
mitten crabs moving up. Unfortunately, published data on the invaders’
distributions is scant.

I was wondering if you could provide any information on these two species
in the Aire. Any anecdotal sightings (from informal surveys, residents near
the river, angling clubs etc.) would be very useful. If you have no
information at present, do you have a mailing list or way of circulating my
request so I can be informed if any river users see these species?

Many thanks in advance for your assistance.

Regards,
Nigel Taylor

————————————

Nigel Taylor
Postgraduate Research Student
Manton Building 8.17
University of Leeds
Clarendon Way LS2 9JT

E-mail: bsngt@leeds.ac.uk
Mobile: + 44 7837 454 076