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Concept: Epirhithral and metarhithral streams in the eunishabitats vocabulary
| Concept URI | http://eunis.eea.europa.eu/eunishabitats/C2.21 |
|---|---|
| Preferred label | Epirhithral and metarhithral streams |
| Definition | 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. |
| Notation | C2.21 |
| Status | Valid |
| Status Modified | 2014-01-31 |
| Accepted Date | 2014-01-31 |
| Not Accepted Date | |
| Has broader | |
| Has exact match |
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