A dash of rain in the headwaters with a small slug of extra water, about a foot, on its way downriver.
Freshen things up a little but unlikely to provoke fish movement to any great extent.
See below some information in respect of WUF claims.
Having had some recent email exchanges with the Chairman of the Wye Conservators I have asked him to comment on this. You may find it interesting.
Elan
After a desperate summer for the rivers, there is some good news
to report from our Gravelling the Elan System (GES) project. This
week, electrofishing surveys confirmed that for the first time since monitoring
started in 1972 (and possibly well before), salmon and trout have successfully
spawned in the upper section of the river below the dams.
The Foundation, along with partners Dwr Cymru/Welsh Water and Natural Resources Wales have
been replenishing the lost gravels in this part of the Elan over the past two
years. The project was designed to restore the river's ecology and to enable
salmon and trout to once again use the full potential of this important upper
Wye tributary for spawning and juvenile habitat.
Following gravel
introductions in 2016 & 2017, initial monitoring results showed
improvements in the invertebrate populations in the previously depleted
areas. Last year, adult trout numbers were also found to have risen, probably
taking advantage of this improved food supply.
Last winter an adult salmon was seen leaping below the weir at
the Visitor Centre, just upstream of the gravel introduction point. Then, in
December, at least one probable salmon redd was observed in the new gravel but
confirmation of whether this was evidence of successful spawning would have to
wait until this summer.
At a site near the Elan Valley Village, where some of the new
gravel had accumulated, the monitoring team found 6 salmon fry. Trout fry were
also recorded at 6 of the 8 upper Elan monitoring sites. The result shows that
the newly introduced gravel has been used by both salmon and trout to spawn.
The monitoring team also found that numbers of bullhead (Cottus gobio), an SAC
designated species that lives in gravel, were also up in the previously denuded
areas. Additionally, densities
of salmon fry in the lower sections of the Elan had increased
fivefold.
Looking ahead, the Elan could become an increasingly important
spawning area for salmon and trout. The extreme hot and dry conditions of this
summer are probably a sign of things to come. Provided the habitat is right,
the controlled flows of the Elan dams provide them with some refuge to the
extremes of temperature and flow.
This project has been several years in development, requiring
lengthy and, at times, painstaking negotiations. We would very much like to
thank Dwr Cymru/Welsh Water and Natural Resources Wales for their support and
determination in making it possible. This result is proof that the gravel
initiative was worthwhile.
There will be a further introduction this year and some work to
loosen compacted old gravels. We hope then to be able to secure the funding
required to continue with yearly top-ups so that the newly restored areas do
not fall back into their pre-project
Do you
have access to this raw data from at least 1972 and continuing to the current
year? If so can you share it?
Do you have
this data and if you are using 2016 as a baseline remember this was a year of
the worst electofishing numbers for the Wye on record (50% down on the 5 year
average)
Increased 5
fold compared to what? 2016? See above. Please produce evidence
No mention that the Gravel was extracted from the upper Wye
instead of above the dams?
Are there more Salmon thanks to WUF?
Depends on what you mean, the Wye Salmon Owners and the Wye
Foundation were active in estuary net removal, supporting Mr Vigfusson and
supporting the Irish drift net removals led by the Wessex Rivers Trust.
In WF's own words
" Last year we bought off for good, the drift nets in the estuary
and persuaded the Agency, who own the Wye putchers that they should stop too.
Finally we have bought out the Goldcliffe Putchers which operate between the
Usk and the Wye for five years. All this was made possible through the
generosity of a keen and generous supporter, a contribution from Orri
Vigfusson's NASF and from a levy of the members of the United Usk Fishermen and
the Wye Salmon Fishery Owners Association. At the very least, over 1200 fish
will be freed to spawn the two rivers but in all probability, many more than
that."
Source WF website January 2003
So let us consider these 800 fish that escaped the nets and
ascended the rivers to spawn - 80 would have been caught - 30 killed by rods,
lets say 300 additional hens spawned in 2003. Lets assume (for arguments sake)
that each pair of brrodstock produed 2.5 returning adults. In 2008 that would
mean an extra 750 fish plus of course every year 800 fish will escape the nets.
It would be simple to expand this until the current date and even add in the
escapees from the Irish Drift Net removal in 2006.
Note that on the same webpage back in 2003 WF report -
" Thirty years
ago, there were noo goosanders on the Wye. According to the recent Maff (now
Defra) survey up to 98% of the salmon parr produced on the Upper Wye are eaten
by goosanders. Additionally, Cormorants are seen in groups of up to 55, eating
2 - 3kg of fish each per day. How does the mathematics of this sound: 200
goosander eating, say 10 salmon parr per day. They feed on 300 out of 365
days/year. Result: 600,000 salmon parr gone, not counting the activities of
cormorants and other fish eating birds. All this on top of the salmon’s other
problems.
What has been done? 15 years and
nothing?
Next let us consider the great
improvement in catches and therefore, by implication, fish stocks.
The last 3 years on the Wye have seen reasonable catches but
how do they compare to rivers close by or with historic spring runs similar to
the Wye. Discount the scottish east coast as there salmon almost certainly
split feeding grounds.
2014
|
2015
|
2016
|
2017
|
|
Severn
|
211
|
468
|
334
|
328
|
Hants Avon
|
53
|
211
|
193
|
139
|
Wye
|
439
|
828
|
1020
|
799
|
2017 figures are provisional.
As you can see having a £million rivers trust on the Wye
brought an increase of almost double from 2014 to 2015, the Severn (despite
poor catch reporting) was over double and the Hants Avon was a 4x increase.
Similar figures were seen on Taw, Exe Frome etc.
So was this anything to do with WUF or was it improved
escapement of the 2SW class in Greenland?
Wye v Spey
Lets take a snapshot of two things.
How do the two parties disseminate Information?
Both have an annual meeting, both have talks on various
subjects.
The Spey board produce detailed documents to support what
was said at the meeting.
On the Wye we have
little or nothing.
Cost
Spey Board 2017 £467,615
rod catch - 7,632 - cost per fish - £61 (Includes Spey hatchery cost)
WUF 2016 £1.3 million. rod catch - 1691 - cost per fish -
£768
Not a great comparison is it.
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