Below is the Net Up count for the Finn from 2000 to 2011

The River Finn is one of the major Salmon rivers in the Foyle catchment.  The counter is situated at Killygordon, Donegal and has been in operation since December 2000. 

The Finn site has a 4 channel crump weir spanning the breadth of the river at this location.  Each channel is built to a different level with the 2 central channels set at a lower level. The reason for the lower level channels is to enable all migratory species that use this river to get over the weir at lower water levels where channels 1 and 4 can dry out during periods of dry summer weather.

Each channel has sheets of polyethylene panel boards spanning each length with recessed stainless steel strips, 3 across each channel. The electrodes are cabled into the site office and linked into a 2100c logie counter that monitors the subtle resistance changes in the body of water that flows through each channel caused by fish moving up or down, this in turn is recorded by the logie counter  that displays the following information:-

Sample Data Set

To confirm the accuracy of the counter we have the camera array in place that is time synchronised with the logie counter to confirm if the logie has recorded an event or a fish moving up or down.  An event is usually recorded as E Event, U Up, D Down. U or D is a recorded movement of a fish whereas E is debris that is moving down through the channel. 

For a more detailed view of the Loughs Agency counter program and how we handle all data then please read/download the PDF's titled "A Basic overview of the Counter Program" and "Counter Program - Web Ver 1.1"

Site Details - Full Count