Dartmoor monsoon

4/01/2016

Happy New Year to all members and friends of the Dart Angling Association.

Well the monsoon broke in early November and shows no sign of abating. What effect this has had on salmon and sea trout spawning remains to be seen. . . .in 2019 at the earliest. Whereas  late running fish have had magnificent water to travel on, there must be serious concerns about redd washout.  Redd counting has been virtually impossible in the high water but the general feeling is that spawning effort has been sparse, and the absence of sharp ‘triggering’ frosts another worry. Given that fewer fish seem to be returning and that autumn are storms appear increasingly violent, we can be forgiven for being less than optimistic.  That said, everyone will be hoping that 2016 brings a welcome change of fortune after last season’s tales of woe.

The Totnes Weir Pool project appears to be  pretty much up and running , and though it is any bodies guess how this might change things, it would be a real bonus if it, and the recent force of water,  somehow combine to move the build up of silt and create a deeper, healthier habitat for our returning fish to rest in.

The dates for bank clearing will be published asap – obviously last Sunday was a wash out.

 

DEFRA salmon protection measures

· In light of the long-term decline in salmon stocks, Defra and the EA are considering a ban on the killing of wild salmon unless the rivers or estuaries can demonstrate the fishery is sustainable.

· The changes being explored would include:

– the suspension of commercial net fisheries
– mandatory catch and release of salmon for recreational anglers
– rules on angling methods to reduce the accidental killing of rod and line caught salmon.

· Measures in the Environment Agency’s five-point approach include:

– Improve marine survival
– Further reduce exploitation by nets and rods
– Remove barriers to migration and enhance habitat
– Maximise spawning success by improving water quality
– Safeguard sufficient flows

Press release follows:

DEFRA, 19/11/15

SECURING THE FUTURE OF OUR SALMON STOCKS

New measures to protect wild salmon stocks in English rivers and estuaries by ensuring all fish caught are returned to water have been outlined by Fisheries Minister George Eustice following a summit with the Environment Agency, angling organisations and fishermen today.

The plans, which are currently being explored with the Environment Agency, would be open for consultation in 2016 and would help to address the long-term decline of this migratory species by ensuring more of these iconic fish continue their migration through our rivers and estuaries to spawn. This approach is in line with the 77% of recreational anglers who already return their catch to our waters.

Commenting on these plans, Fisheries Minister George Eustice said:

“The sight of salmon leaping in our rivers has always been an essential element of our countryside, but a combination of factors including climate change means their numbers are in sharp decline and we must act.

“While some of the cause of their decline occur at sea and are beyond our control, this summit will explore what measures we can take to help salmon recover, including creating more fish passes, reducing the taking of salmon through netting and angling, and improving water quality.”

These measures are consistent with the Environment Agency’s existing five-point approach to salmon conservation which includes reducing exploitation by nets and rods, removing barriers to migration, enhancing habitats and improving water quality to increase stocks.

Commenting on these developments, David Rooke, Acting Chief Executive at the Environment Agency said:

“Since 2009 the Environment Agency and our partners have installed 63 fish passes on England’s main salmon rivers, which combined with removing or altering other barriers have opened up 5,767 kilometres of river, and have reduced or removed 44 unsustainable water abstractions on salmon rivers. We’ve already made progress but there is still much more to do.

“Our 5-point approach to securing the best future for salmon will see us increasingly working in partnership to ensure further action to safeguard this iconic species and we can’t do it alone. We’re inviting others to work with us to do all we can to support salmon stocks in future years.”

The UK Government has already supported a number of measures to protect this important species at home and is working at an international level to manage fishing in the North Atlantic salmon feeding grounds at the Faroe Islands and West Greenland.

Totnes Hydro – First turbine put in place

On thursday, the first of two Archimedean turbines was put into place at the Totnes hydro scheme. It was planned to locate both of the turbines into their channels but delays to their arrival only allowed enough time and daylight to install one of them, with the other re-sheduled for the next day.

A 300 tonne capacity crane stood waiting, ready to unload the turbines and swing them into position.

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The crane towers above the site
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Turbine/gearbox linkage

When the turbine eventually arrived there was a short pause to attach the linkage that will transfer the drive to the generator’s gearbox and to adjust the crane’s lifting strops.

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The turbine arrives

With this done the turbine was lifted again and swung into position above its channel.

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The turbine is lowered into position
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Nearly there

The other screw was due to be installed today (fri 13th!). We hope all went well.

The coffer dam should be gone within about two weeks and the plant is due to be working before the end of next month.

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The second channel and beside it another ready to accept the Larinier fish pass. The position of the resting pool can be seen at the half-way point.

The fish counter will also be installed and should be working before the start of the 2016 season. The counter is long awaited and will be invaluable in the management of the river.

 

The Dart & Teign River Improvement Project (DTRIP)

The following quote is from the DTRIP report and describes its scope. The project has recently come to a conclusion.

“The Dart & Teign River Improvement Project (DTRIP) was a Defra-funded Catchment Restoration Fund Project administered by the Environment Agency. The project was written and delivered by the Westcountry Rivers Trust, and steered by its catchment partnership…”

“…This report documents the works delivered under the DTRIP and describes how these works were targeted to ensure that efficient on the ground management was delivered effectively throughout the catchment.”

You can see the full report here. It is a pre-publication copy and contains a couple of mistakes, which you will easily spot. The authors are aware of this.

2015 Catch return

Catch return forms for the 2015 season will be sent out to members soon. Please complete them and send them back to Hon Sec as soon as possible to give Phil time to collate the information in time for the AGM. If you can’t wait to receive your form by post, here is a .pdf copy.

Catch return2015

No Season Extension 2015

Would members please note there will be No Season Extension for salmon fishing this year and the season will finish as normal on September 30th.

Given the very difficult year experienced with fungal disease and the introduction of the emergency bye -law restricting salmon fishing to ‘Fly Only and Catch and Release on July 22nd I am sure members will feel this is the right approach.

Ulcerative dermal necrosis (UDN) in wild salmonids

As an aid to understanding what might have been going on in the Dart for the past couple of years, the following link is to an abstract of a paper that gives a more detailed pathology of UDN.

Ulcerative dermal necrosis (UDN) in wild salmonids

Salmon with UDN-like lesion on its head
Dart sea trout with UDN-like lesion on its head ©

There is a suggestion that the disease we have been observing may not be UDN. However, the article above appears to describe precisely the appearance and consequences of what we have been seeing.

The good news is that at least one shoal of clean sea trout has been spotted  in the river recently.