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…
Category: Lamprey passes
Lampreys passage at crump weirs
River lamprey Lampetra fluviatilis is listed under Annex II of the EU Habitats Directive. River lampreys have a very poor swimming ability, limited climbing ability and are not able to jump. They cannot…
Mulkear Life’s Lamprey Pass – where is the evidence that it works?
As part of the Mulkear Life project (www.MulkearLife.com), a ramp pass was installed on a weir at Annacotty on the Lower River Mulkear for the purpose of allowing sea lampreys…
