Correspondences between UK Freshwater Habitat Types

 

The table below shows how freshwater habitat types recognised by different mainstream habitat classifications in the UK relate to each other.

 

The types included are those recognised under the UK Biodiversity Action Plan (UK BAP), the EU Habitats Directive, the JNCC classifications of British Lake Vegetation Communities and British River Vegetation Communities.

 

The table shows only how the types broadly fit together – some examples of the types shown may fit into other vegetation/habitat types.

 

UK BAP priority habitats

EU Habitats Directive Annex I habitats

JNCC British Lakes or Rivers classification types*

Aquifer-fed naturally fluctuating water bodies

H3150 Natural eutrophic lakes with Magnopotamion or Hydrocharition-type vegetation

H3180 Turloughs

Group D: Widespread, often large, mid-altitude circumneutral lakes

Group E: Northern, often large, low altitude and coastal, above-neutral lakes with high diversity of plant species

Group G: Central and eastern, above neutral, lowland lakes

Group I: Widespread, mostly moderately large, base-rich lowland lakes

Eutrophic standing waters

H3150 Natural eutrophic lakes with

Magnopotamion or Hydrocharition-type vegetation

Group D: Widespread, often large, mid-altitude circumneutral lakes

Group E: Northern, often large, low altitude and coastal, above-neutral lakes with high diversity of plant species

Group G: Central and eastern, above neutral, lowland lakes

Group I: Widespread, mostly moderately large, base-rich lowland lakes

Mesotrophic lakes

H3130 Oligotrophic to mesotrophic standing waters with vegetation of the Littorelletea uniflorae and/or of the Isoëto-Nanojuncetea

H3140 Hard oligo-mesotrophic waters with benthic vegetation of Chara spp.

Group B: Widespread, usually low-lying acid moorland or heathland pools and small lakes

Group C1: Northern, usually small to medium-sized, acid, largely mountain lakes

Group C2: North western, predominately large, slightly acid, upland lakes

Group D: Widespread, often large, mid-altitude circumneutral lakes

Group E: Northern, often large, low altitude and coastal, above-neutral lakes with high diversity of plant species

Group F: Widespread, usually medium-sized, lowland, above neutral lakes

Group G: Central and eastern, above neutral, lowland lakes

Group I: Widespread, mostly moderately large, base-rich lowland lakes

Oligotrophic and Dystrophic lakes

H3110 Oligotrophic waters containing very few minerals of sandy plains (Littorelletalia uniflora)

H3130 Oligotrophic to mesotrophic standing waters with vegetation of the Littorelletea uniflorae and/or of the Isoëto-Nanojuncetea

H3140 Hard oligo-mesotrophic waters with benthic vegetation of Chara species

H3160 Natural dystrophic lakes and ponds

Group A: Small, predominantly northern dystrophic peat or heathland pools

Group B: Widespread, usually low-lying acid moorland or heathland pools and small lakes

Group C1: Northern, usually small to medium-sized, acid, largely mountain lakes

Group C2: North western, predominately large, slightly acid, upland lakes

Ponds

H3110 Oligotrophic waters containing very few minerals of sandy plains (Littorelletalia uniflora)

H3130 Oligotrophic to mesotrophic standing waters with vegetation of the Littorelletea uniflorae and/or of the Isoëto-Nanojuncetea

H3140 Hard oligo-mesotrophic waters with benthic vegetation of Chara spp.

H3150 Natural eutrophic lakes with Magnopotamion or Hydrocharition-type vegetation

H3160 Natural dystrophic lakes and ponds

H3170 Mediterranean temporary ponds

Group A: Small, predominantly northern dystrophic peat or heathland pools

Group B: Widespread, usually low-lying acid moorland or heathland pools and small lakes

Group C1: Northern, usually small to medium-sized, acid, largely mountain lakes

Group C2: North western, predominately large, slightly acid, upland lakes

Group D: Widespread, often large, mid-altitude circumneutral lakes

Group E: Northern, often large, low altitude and coastal, above-neutral lakes with high diversity of plant species

Group G: Central and eastern, above neutral, lowland lakes

Group H: Northern, small, circumneutral, lowland lakes, with low species diversity

Group I: Widespread, mostly moderately large, base-rich lowland lakes

Rivers

H3260 Water courses of plain to montane levels with the Ranunculion fluitantis and Callitricho-Batrachion vegetation

River types: I-X

* note that the names of the lake types have been shortened

[created Nov 2015]