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Old River Shannon Trust

Striving for sustainable management of Ireland's great river

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Category: Ardnacrusha

Posted on September 26, 2017September 26, 2017

New boom but no further progress with elver trap

I visited the elver trap at Ardnacrusha hydroelectric station on the Lower River Shannon in September 2017. The promised upgrades to the trap were never completed this year by the…

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Posted on May 21, 2016April 3, 2018

Highlighting problems on the River Shannon for World Fish Migration Day

World Fish Migration Day is a particular relevant day for the River Shannon; a river with numerous fish passage issues – both due to the presence of the ESB’s dams…

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Posted on March 6, 2016March 13, 2016

Study shows dramatic impact of ESB dams on salmon

A new study just published shows that salmon runs on Shannon are less than five percent of what they should be. This is due to the impact of ESB dams. Essentially the salmon…

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Posted on February 21, 2016April 3, 2018

We need to start managing the Lower Shannon sustainably

The Lower (old) River Shannon downstream of Parteen Regulating Weir is usually provided with a ‘compensation’ flow of just 10 m3 sec-1 (cumecs). However, during the winter of 2015/16 flows in the…

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Posted on December 4, 2015December 4, 2015

Silver eel turbine passage mortalities at Ardnacrusha

We are currently assessing silver eel turbine passage mortality at Ardnacrusha hydroelectric station on the Lower River Shannon. Silver eels are adult maturing eels on their spawning migration to the…

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Posted on August 27, 2015July 21, 2018

Are Ireland’s large hydroelectric schemes sustainable?

Ireland’s hydroelectric power stations are widely considered to be a sustainable source of ‘green’ energy. But is this really true? As we approach the centenary anniversary of the opening of Ireland’s…

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Posted on December 1, 2014December 7, 2014

Ardnacrusha; water management, silver eels and cormorants

These are some photos of Ardnacrusha hydroelectric station taken on the morning of the 24th November 2014. In addition to the four turbines being on full load, water was also being…

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Posted on May 7, 2014September 15, 2014

No elver traps operating on the River Shannon

Rivers across Europe are currently experiencing a phenomenal increase in the runs of juvenile eels, or elvers. The numbers that have arrived into rivers such as the River Severn in…

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  • 'Croneen' trout
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  • Shannon salmon management programme
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  • Silver eel turbine mortality
  • Smolt mortality
  • The Gearagh
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Pages

  • 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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