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No (
002 ) - Leading to question named '002'
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Yes [ G ] - Leading to another questions subset of level G
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No
[ E6 ] - Links directly to factsheet for E6
Category : (C1 )Surface standing waters
Diagram :
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Question
c01
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Ice-cover?
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| Permanent or almost permanent ice formations of lakes (continuous ice sheets that cover the entire surface for all of the year or which recede to part of the lake during summer accompanied or replaced by floating ice blocks, rafts and hummocks) (path = <strong>Yes</strong>) are distinguished from waterbodies with open water, which may or may not have occasional ice cover. | ||
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Question
c02
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Temporary?
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| Seasonal and otherwise temporarily-filled lakes, ponds and pools (path = <strong>Yes</strong>) are separated from surface water of more permanent character. Note that the wet phase only of temporary standing waters is characterised here. The habitat in its dry phase is normally characterised under C3. Note that temporarily flooded meadows and riverine forests are characterised as grassland and forest respectively. | ||
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Question
c03
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Saline?
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| Inland saline and brackish lakes and pools are separated (path = <strong>Yes</strong>) from waterbodies with freshwater. | ||
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Question
c04
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Trophic status
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| Standing waters are separated on the basis of their trophic status; <strong>oligotrophic</strong> waters, of low nutrient status, usually on hard, acid rock with high oxygen concentration in the hypolimnion; <strong>mesotrophic</strong> waters, intermediate between oligotrophic and eutrophic waters; <strong>eutrophic</strong> waters with high productivity and potentially low oxygen concentration in the hypolimnion; <strong>dystrophic</strong> waters which are rich in humus, often with a brown colour. | ||||
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Green tips
The European Environment Agency (EEA) is an agency of the European Union.