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Net Count


Date Counted: 1st June 2022

The counter station is located at the weir in Sion Mills. It is a partial counting site as it only has 2 channels spanning 6m of a possible 162m.


Below is the Net Up count for Sion Mills Counter on the River Mourne from 2012 to 2020

Year Net Up Count
2012 2836
2013 3162
2014 3852
2015 1824
2016 1350
2017 912
2018 1214
2019 2824
2020 3915


Location of Counter

Site Details - Partial Count

1 Width of River at weir during high flow 162m
2 Attraction Weirs No Array 15m
3 Breadth of Channels/Arrays: 6m
a. Channel 1 1m
b. Channel 2 5m
4 Electrode Total Length: 26
5 Width Not Covered by Array 156m
6 Logie Installation Sep-96
7 Operational Start Date 2100C May-97
8 First Data Set Jun-97
9 Camera 2 x Arial
10 Camera Coverage Area Only
11 Required Salmon Upstream every year 8000 Management Target


Following the Government’s advice in relation to COVID-19, Loughs Agency has put in place a number of measures to maximise our capacity to continue to deliver our services as best we can.