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Old River Shannon Foundation

Striving for sustainable management of Ireland's great river

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Category: Fish passage

Posted on November 10, 2021November 13, 2021

ESB claims that all the salmon counters at their dams “malfunctioned” in 2020

No salmon counts are available for 2020 for the ESB dams on the Lower River Shannon, River Lee, and River Erne. In the ESB Fisheries Conservation annual report (2020), they…

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Posted on December 20, 2017December 20, 2017

Call to disband failed “Shannon Fishery Partnership”

The members of the so-called Shannon Fishery Partnership are meeting in Killaloe today for their annual Christmas dinner. On this day it really is time to call a day on…

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Posted on July 2, 2014September 5, 2014

Fish passage issues on the River Brosna at Clara

As part of our River Brosna Special Area of Study 2014, we visited the small hydroelectric station on the River Brosna at Clara on the 30th June 2014. This site…

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Posted on March 22, 2014April 6, 2014

Design problems with the new fish pass at Ennis

We visited the site of the new Larinier fish pass at the Mill Weir on the River Fergus at Ennis this week as part of an ongoing review we are…

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Posted on January 14, 2014March 6, 2017

A sustainable compensation flow is needed for the Old River Shannon

One of the key environmental issues on hydroelectric schemes with diverted river stretches, such as the lower River Shannon, is that discharges are at a consistent uniform low flow for…

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Posted on August 25, 2013December 11, 2014

Jamestown Weir – a salmon beat of the future?

The Shannon is a wide and slow-flowing river with only a limited number of shallow stretches (as we all know). Indeed, from Battlebridge just south of Lough Allen to Killaloe…

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Posted on July 14, 2013May 17, 2016

The failure of the Ardnacrusha fish-lift

The fish pass at Ardnacrusha is a Borland type vertical fish-lift. The bottom chamber and the vertical shaft are built in an area which was left for a 6th turbine…

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Posted on June 27, 2013November 13, 2021

Lamprey passage at crump weirs

River lamprey Lampetra fluviatilis is listed under Annex II of the EU Habitats Directive. River lampreys cannot pass crump weirs. It is of concern that these crump weirs are being installed on…

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  • 'Croneen' trout
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  • About the old river shannon trust
  • Aerial photos, Lower River Shannon
  • Alluvial forest 91EO
  • Contact us
  • Floods January 2014
  • Gallery 1: Historical
  • Gallery 2: Modifications
  • Gallery 3: Castleconnell
  • Meelick, January 2014
  • Parteen, February 2014
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  • Why are there no salmon in the upper River Shannon?
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