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Epirhithral and metarhithral streams

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English name Epirhithral and metarhithral streams Open code browser    Diagram icon

EUNIS habitat type code   C2.21 Level   4
Edition   EUNIS Habitat Classification 2012 - a revision of the habitat classification descriptions.

Description ( English )

Upper and middle reaches of montane and upland streams, characterised by turbulent, irregular flow, by diurnal and annual temperature variations higher than in the crenon (unit C2.16), and by aquatic biocoenoses largely dominated by [Turbellaria], [Ephemeroptera], [Plecoptera], [Trichoptera], [Diptera], by [Bryophyta] and epilithic [Bacillariophyta], [Cyanophycaea], [Rhodophyta] and [Chlorophyta] algae, with few, specialised, emergent macrophytes (units C2.25-C2.28). The unit corresponds to the "Trout zone" or "Salmonid zone" of western European ichthyological classifications.

Source

ILE SAS (2001)

External links


Relationships with other classifications

Classification Code Title Relation type
EUNIS Habitat Classification 200410 C2.21 Epirhithral and metarhithral streams same
EUNIS Habitat Classification 200308 C2.21 Epirhithral and metarhithral streams same
EUNIS Habitat Classification 200202 C2.21 Epirhithral and metarhithral streams same
EUNIS Habitat Classification 199910 C2.21 Epirhithral and metarhithral streams same
EUNIS Habitat Classification 199811 C2.22 Epirhitral and metarhitral streams same
EUNIS Habitat Classification 199712 C2.22 Epirhitral and metarhitral streams same
Palaearctic Habitat Classification 200112 24.12 Epirhitral and metarhitral streams source
Palaearctic Habitat Classification 199905 24.12 Epirhitral and metarhitral streams same
Palaearctic Habitat Classification 1997 24.12 Epirhitral and metarhitral streams same
Palaearctic Habitat Classification 1996 24.12   same
Palaearctic Habitat Classification 1993 24.12   same
CORINE Biotopes Classification 1991 24.12   same
CORINE Biotopes Classification 1989 24.12   same
CORINE Land Cover 5.1.1. Water courses n/a
Milieux Naturels de Suisse 1998 1.2.3 Zone inférieure de la truite (métarhitron) narrower
Milieux Naturels de Suisse 1998 1.2.4 Zone supérieure de la truite (épirhitron) narrower
Biotopes of Slovakia 1996 8120000 Bystrina horská (epiritrál) n/a
Biotopes of Slovakia 1996 8131000 Podhorský potok (metaritrál) n/a
  C Inland surface waters Go to key navigator, starting with this habitat    Ancestor
  C2 Surface running waters Go to key navigator, starting with this habitat    Ancestor
  C2.2 Permanent non-tidal, fast, turbulent watercourses    Parent
EUNIS

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