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…
Author: Dr. Will O'Connor
Dr. Will O’Connor is a Senior Ecologist who has over 25 year’s professional experience. He is a graduate of the University of Wales, Cardiff, and the National University of Ireland, Galway. He is a Fellow of the Royal Society of Biology, and a full member of both the Chartered Institute of Ecology and Environmental Management and the Institute of Fisheries Management. He is a Chartered Environmentalist and a Chartered Biologist.
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…
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…
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…
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…
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.…
Thousands of River Lampreys trapped below Limerick weir
The photo gallery below shows River Lampreys Lampetra fluviatilis trying to pass Annacotty weir on River Mulkear, Co Limerick, during late-March 2017. This is in the Lower River Shannon SAC…
River Lampreys trying to pass Mulkear weir, March 2017
The photos below show River Lampreys Lampetra fluviatilis trying to pass Annacotty weir on River Mulkear, March 2017. This is in the Lower River Shannon SAC and these lampreys are…
