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Category: Sea lamprey

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 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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Posted on July 29, 2016March 29, 2017

Sea lamprey spawning survey 2016

We undertook a number of Sea Lamprey Petromyzon marinus spawning surveys during 2016 and some videos from these surveys are presented on this post. Sea Lamprey is the largest of…

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Posted on June 7, 2016November 7, 2016

River Lampreys spawning on Lower River Slaney

The following is a video of River Lampreys Lampetra fluviatilis and adult Minnows Phoxinus phoxinus (in their spawning colours) interacting on the Lower River Slaney at Scarawalsh during early May…

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Posted on November 7, 2015November 8, 2015

Lamprey surveys, Lower River Shannon, 2015

This post provides links to videos we posted to our YouTube channel this year of migratory lampreys spawning in the Lower River Shannon Special Area of Conservation. These are some…

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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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