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Lamprey Surveys

Lamprey surveys and consultancy advice UK & Ireland

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Posted on August 31, 2019September 1, 2019

Fish passes need to cater for all species – not just salmonids

During August 2019 I objected to a planning application by Waterways Ireland for rehabilitation works and construction of a fish pass (rock ramp) at Tinnahinch Weir Lower on the River…

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Posted on April 16, 2019April 16, 2019

Lampreys still blocked at Annacotty Weir

Annacotty weir is located on the River Mulkear, Co Limerick, Ireland. It is a tributary of the Lower River Shannon and a significant proportion of the River Mulkear is designated…

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Posted on June 5, 2018October 25, 2018

Sea Lamprey migration blocked by weir

Sea lampreys Petromyzon marinus running at Annacotty weir on the Lower River Mulkear, Co Limerick, during early June 2018. Overnight rain caused river levels to rise and this stimulated upstream…

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Posted on April 17, 2018October 13, 2018

Having to mitigate for lampreys – something you might not have reckoned on

Heron with River Lamprey* in the River Dodder this week. No aquatic ecology surveys were completed for River Dodder Flood Alleviation Scheme. In the reports prepared to inform the EIS…

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Posted on September 26, 2017November 9, 2017

Introduction to lampreys and issues they face in Ireland

Three species of lamprey occur in Ireland; the brook lamprey Lampetra planeri, the river lamprey Lampetra fluviatilis and the sea lamprey Petromyzon marinus. The lampreys (family Petromyzonidae) belong to a…

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Posted on September 26, 2017

Shannon Sea Lamprey Documentary

We were delighted to work recently with BBC Earth on a documentary on Sea Lampreys Petromyzon marinus. The filming took place during early-June 2017 on the old River Shannon at Castleconnell, Co Limerick.…

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Recent posts

  • Fish passes need to cater for all species – not just salmonids
  • Lampreys still blocked at Annacotty Weir
  • Sea Lamprey migration blocked by weir
  • Having to mitigate for lampreys – something you might not have reckoned on
  • Introduction to lampreys and issues they face in Ireland
  • Shannon Sea Lamprey Documentary
  • Thousands of River Lampreys trapped below Limerick weir
  • River Lampreys trying to pass Mulkear weir, March 2017
  • Sea lamprey spawning survey 2016
  • River Lampreys spawning on Lower River Slaney

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