EUNIS habitat classification 2012 amended 2019 > C - Inland surface waters > C1 - Surface standing waters > C1.1 - Permanent oligotrophic lakes, ponds and pools

Permanent oligotrophic lakes, ponds and pools

English name: Permanent oligotrophic lakes, ponds and pools

Description (English)

Waterbodies with a low nutrient (nitrogen and phosphorus) content, mostly acid (pH 4-6). Includes oligotrophic waters of medium or high pH, e.g. calcareous and basic unpolluted nutrient-poor lakes and pools, which are rare in much of Europe and noted as a habitat of charophytes (C1.14). Excludes peaty, dystrophic waters (C1.4). Because of the low nutrient status, beds of vascular plants, including Callitriche spp., Potamogeton spp. and isoetids Isoeto-Nanojuncetea are often sparse and open.

Source:
EUNIS habitat classification
Interpretation Manual of the habitats targeted by Resolution No. 4

Quick facts

EUNIS habitat type	code C1.1
Bern Convention	Resolution 4 habitat type (used for designation of Emerald sites)
Relation to	Annex I habitat types (EU Habitats Directive)

Legal status

Mentioned in the following international legal instruments and agreements

Legal text	Annex	More information
Convention on the conservation of European wildlife and natural habitats (Bern Convention)	Revised Annex I of Resolution 4 (1996) of the Bern Convention on endangered natural habitats types using the EUNIS habitat classification (year of revision 2014)	https://wcd.coe.int/ViewDoc....ckColorLogged=FDC864 Resolution No. 4 (1996) of the Bern Convention lists endangered natural habitats requiring specific conservation measures [and the designation of Areas of Special Conservation Interest (ASCIs) forming the Emerald network]

Relation to other habitat types mentioned in legal instruments

Legal text	Annex	Name in legal text	Code in legal text	Habitat type relationship	More information
Council Directive 92/43/EEC of 21 May 1992 on the conservation of natural habitats and of wild fauna and flora - consolidated version 01/01/2007	Annex I: natural habitat types of community interest whose conservation requires the designation of special areas of conservation	Humid dune slacks	2190	Overlap	http://ec.europa.eu/environm...rective/index_en.htm
Council Directive 92/43/EEC of 21 May 1992 on the conservation of natural habitats and of wild fauna and flora - consolidated version 01/01/2007	Annex I: natural habitat types of community interest whose conservation requires the designation of special areas of conservation	Oligotrophic waters containing very few minerals of sandy plains (Littorelletalia uniflorae)	3110	Wider
Council Directive 92/43/EEC of 21 May 1992 on the conservation of natural habitats and of wild fauna and flora - consolidated version 01/01/2007	Annex I: natural habitat types of community interest whose conservation requires the designation of special areas of conservation	Oligothrophic waters containing very few minerals generally on sandy soils of the West Mediterranean, with Isoetes spp	3120	Wider
Council Directive 92/43/EEC of 21 May 1992 on the conservation of natural habitats and of wild fauna and flora - consolidated version 01/01/2007	Annex I: natural habitat types of community interest whose conservation requires the designation of special areas of conservation	Hard oligo-mesotrophic waters with benthic vegetation of Chara spp	3140	Overlap

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Not available

Other classifications

Classification	Code	Habitat type name	Relationship type
Palaearctic Habitat Classification 200112	22.15	Lime-rich oligo-mesotrophic waterbodies	narrower
Palaearctic Habitat Classification 200112	22.11	Lime-deficient oligotrophic waterbodies	narrower
CORINE Land Cover	5.1.2.	Water bodies	n/a
HELCOM Baltic Sea Marine and Coastal Biotopes 1998	04.01.02.03	Coastal lakes: freshwater: oligotrophic	narrower
Phase 1 habitat classification (UK) 1993	G13	Standing water: oligotrophic	same
Milieux Naturels de Suisse 1998	1.1	Eaux calmes	wider
Biotopes of Slovakia 1996	8211000	Vysokohorské jazero	n/a
Biotopes of Slovakia 1996	8212000	Horské jazero	n/a

For relation to plant communities (syntaxa), see Vegetation types

History

Classification	Code	Habitat type name	Relationship type
EUNIS Habitat Classification 200410	C1.1	Permanent oligotrophic lakes, ponds and pools	same
EUNIS Habitat Classification 200308	C1.1	Permanent oligotrophic lakes, ponds and pools	same
EUNIS Habitat Classification 200202	C1.1	Permanent oligotrophic lakes, ponds and pools	same
EUNIS Habitat Classification 199910	C1.1	Permanent oligotrophic lakes, ponds and pools	same
EUNIS Habitat Classification 199811	C1.11	Lime-deficient oligotrophic water bodies	same
EUNIS Habitat Classification 199712	C1.11	Lime-deficient oligotrophic water bodies	same
Palaearctic Habitat Classification 199905	22.15	Includes Lime-rich oligo-mesotrophic waterbodies	narrower
Palaearctic Habitat Classification 199905	22.11	Includes Lime-deficient oligotrophic waterbodies	narrower
Palaearctic Habitat Classification 1997	22.11	Lime-deficient oligotrophic waterbodies	narrower
Palaearctic Habitat Classification 1997	22.15	Lime-rich oligo-mesotrophic waterbodies	narrower
Palaearctic Habitat Classification 1996	22.15		narrower
Palaearctic Habitat Classification 1996	22.11		narrower
Palaearctic Habitat Classification 1993	22.11		narrower
Palaearctic Habitat Classification 1993	22.15		narrower
CORINE Biotopes Classification 1991	22.15		narrower
CORINE Biotopes Classification 1991	22.11		narrower
CORINE Biotopes Classification 1989	22.11		narrower

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