WFD Map Viewer

WFD Map Viewer

WFD Summary Reports

Fish Survey Reports



Transitional Waters

Fish Stock Survey of Lough Dan, September 2021

Lough Dan holds a good stock of small, slow growing brown trout. A population of Arctic char was historically present in the lake (Went, 1945 and 1971; Tierney et al., 2000). However, the last authenticated record was validated in 1988 by the Natural History Museum of Ireland.
The lake was previously surveyed in 1985 and 1989 by Inland Fisheries Ireland (IFI) (previously the Central Fisheries Board) (IFI, unpublished data). IFI (previously the Eastern Regional Fisheries Board) also surveyed the lake in May and October 1994 and resurveyed it in association with University College Dublin in 1996. No Arctic char were recorded during any of these surveys and it was concluded that the population was extinct, probably as a result of acidification.

The lake has been surveyed on three occasions since 2009 (2009, 2012 and 2015) . During these surveys, brown trout were found to be the dominant species present in the lake. Other species recorded in the lake include minnow and eel

This report summarises the results of the 2021 fish stock survey carried out on the lake using Inland Fisheries Ireland’s fish in lakes monitoring protocol. The protocol is WFD compliant and also provides insight into fish stock status in the lake.

Topics: Lake Surveys 2021 |