Mulkear Life’s lamprey pass – where is the evidence that it works?
As part of the Mulkear Life project, a ramp pass was installed on a weir at Annacotty on the Lower River Mulkear for the purpose of allowing sea lampreys to…
Category: Fish passage
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…
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…
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!).…
The Shannon scheme – a one way journey for Salmon
The fish pass at Ardnacrusha of the Lower River Shannon lets very few salmon upstream, but for those salmon that find their way through the fish-lock and into the upper…
Why are there no salmon in the upper Shannon ? : Reason 1
Why are there no salmon in the upper Shannon ? : Reason 1 Smolt Turbine mortality: The floods of May take the smolts away; delay and carnage at Ardnacrusha The smolt…
Old River Shannon Foundation 