Vegetation (Floating River Vegetation) - Office of Public Works
Vegetation (Floating River Vegetation) - Office of Public Works
Vegetation (Floating River Vegetation) - Office of Public Works
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The water quality <strong>of</strong> main channels varied from unpolluted to moderately polluted.<br />
Unpolluted rivers included the Owenriff <strong>River</strong> (2002), the <strong>River</strong> Corrib (2000) and the Mulkear<br />
<strong>River</strong> (2002). Both the <strong>River</strong> Nore (2004) and the Bandon <strong>River</strong> (2003) consisted <strong>of</strong> unpolluted and<br />
slightly polluted sections <strong>of</strong> waterway, while the <strong>River</strong> Clare (2003), <strong>River</strong> Suir (2005), <strong>River</strong><br />
Maigue (2002) and the <strong>River</strong> Feale (2005) had stretches <strong>of</strong> moderately polluted water. Ideally<br />
details <strong>of</strong> the water quality status <strong>of</strong> 2005/ 2006 would be better for correlating water quality and<br />
floating river vegetation recorded at each site.<br />
Table 18 lists the water quality status <strong>of</strong> a selection <strong>of</strong> tributary rivers associated with a<br />
number <strong>of</strong> the main channels listed above. Although each river supported floating river vegetation,<br />
those highlighted in yellow recorded one or more species <strong>of</strong> Water Crowfoot (Ranunculus).<br />
<strong>River</strong> Name Location Pollution Rating Year<br />
Cregg <strong>River</strong><br />
Bridge South <strong>of</strong> Addergoole Unpolluted 2000<br />
(Headford and Corrib)<br />
Lingaun <strong>River</strong><br />
(Suir survey square)<br />
Breagagh <strong>River</strong><br />
(Nore survey square)<br />
Brownstown Stream<br />
(Nore survey square)<br />
Groody <strong>River</strong><br />
(Mulkear survey square)<br />
Killeengarriff <strong>River</strong><br />
Bridge near Drumgriffin<br />
Lingaun Bridge<br />
Bridge near Annasborough House<br />
The three rivers bridge<br />
Brewery bridge<br />
Bridge North West Aughtanny<br />
Bridge South <strong>of</strong> Brownstown<br />
First bridge upstream <strong>of</strong> Nore <strong>River</strong><br />
Bridge 2km North Caherconlish<br />
Lullonan Bridge<br />
Bridge downstream Annagh Bridge<br />
(Mulkear survey square) 100m upstream Annagh Bridge<br />
Dirty <strong>River</strong> Bridge upstream Bandon<br />
Unpolluted<br />
Slightly polluted<br />
Unpolluted<br />
Unpolluted<br />
Moderately polluted<br />
Slightly polluted<br />
Slightly polluted<br />
Slightly polluted<br />
Moderately polluted<br />
Moderately polluted<br />
Unpolluted<br />
Unpolluted<br />
Slightly polluted<br />
Bridge South West <strong>of</strong> Woodbrook Unpolluted<br />
Table 18 Water quality status <strong>of</strong> tributary rivers associated with main channels.<br />
Water crowfoot (Ranunculus) was present on watercourses with unpolluted or slightly<br />
2000<br />
2005<br />
2005<br />
2005<br />
2005<br />
2005<br />
2005<br />
2005<br />
2002<br />
2002<br />
2005<br />
2005<br />
2003<br />
2003<br />
polluted status. In the case <strong>of</strong> the <strong>River</strong> Breagagh, Water crowfoot (Ranunculus) was evident on a<br />
stretch <strong>of</strong> river between the two sampling points. The moderately polluted status would not be<br />
applicable, only the slightly polluted status which would be in keeping with the other rivers<br />
supporting Water crowfoot (Ranunculus). It must be understood that correlating water quality data<br />
and floating river vegetation growth in the absence <strong>of</strong> 2005/ 2006 data must be undertaken with care<br />
as the status <strong>of</strong> some <strong>of</strong> the moderately and slightly polluted rivers may have improved since the<br />
data presented was collected.<br />
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