2003 National Seapoint

Geographical start point for the river network analysis. Identifies the freshwater starting point which extends up to the limit of anadromy (barrier or confluence with 1st Order stream). 
 McGinnity, P.,Gargan, P.,Roche, W., Mills, P. & McGarrigle, M. 2003. Quantification of the Freshwater Salmon Habitat Asset in Ireland using data interpreted in a GIS platform. Irish Freshwater Fisheries, Ecology and Management Series: Number 3, Central Fisheries Board, Dublin, Ireland.
 
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