Core stream type 1: small-sized, shallow, mountain streams
	Austria
	Czech Republic
	Germany
	United Kingdom
	Core stream type 2: medium-sized, deeper, lowland streams
	Denmark
	Germany
	Sweden
	United Kingdom
	Additional stream types
	Austria: small-sized crystalline streams of the ridges of the Central Alps
	Czech Republic: small-sized streams in the Central sub-alpine Mountains
	France: small-sized, shallow headwater streams in Eastern France
	Germany: small-sized Buntsandstein streams
	Greece: small-sized calcareous mountain streams in Western, Central & Southern Greece
	Greece: medium-sized silicious mountain streams in Northern Greece
	Greece: medium-sized silicious streams on the Aegean Islands
	Greece: medium-sized calcareous streams in Western Greece
	Italy: small-sized calcareous streams in the Central Apennines
	Italy: small-sized streams in the Southern calcareous Alps
	Portugal: medium-sized streams in lower mountainous areas of Southern Portugal
	Sweden: medium-sized streams on calcareous soils