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Old River Shannon Foundation

Striving for sustainable management of Ireland's great river

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Tag: Fish passage

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 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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Posted on April 28, 2013May 24, 2014

Why are there no salmon in the upper Shannon? : Reason 3

One of the main problems facing salmon in the River Shannon after the Shannon scheme was opened was that the main flow of water was now coming out of the…

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Posted on April 28, 2013April 18, 2018

Why are there no salmon in the upper Shannon? : Reason 2

Why are there no salmon in the upper Shannon? : Part 2 – Management of Parteen fish pass Unlike the Borland Fish Lift (or Lock) pass that was installed at…

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Posted on April 27, 2013April 27, 2013

River Shannon salmon – time for some new thinking?

According to the Standing Scientific Committee of the National Salmon Commission, the Conservation Limit for salmon in the River Shannon upstream of the Shannon Dams is 49,624 salmon (note exact figure!).…

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  • Atlantic salmon
  • European eel
  • Lampreys
  • Fish passage
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  • 'Croneen' trout
  • Alluvial woodland
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  • River Fergus
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  • Shannon salmon management programme
  • Shannon scheme
  • Silver eel predation
  • Silver eel turbine mortality
  • Smolt mortality
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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
  • Photo Gallerys
  • Recent articles
  • Welcome
  • Why are there no salmon in the upper River Shannon?
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