Niederrheinsee

C - medium to poor

15. June 2025

Habitat StructuresB

CriterionValue
Decisive number of formed aquatic vegetation structuresB
Number of different typically formed accretion structures, such as swamp forest, willow bushes, reeds, etc. C

Species Inventory – Habitat TypicalC

CriterionValue
All stoneworts, higher water plants with a trophic index < 2.5 – see species table C

ImpairmentsC

CriterionValue
Impairment moderately pronounced, rough hornwort, bumpy water lentil-floating mats see species table A
Anthropogenic Influences on >25% of the surveyed area
Natural Shore Accretion absent on >50% of the shoreline
Lower macrophyte boundary A
(Lower Macrophyte Limit)
Middle Macrophyte Limit 4.0 Meter
Lower Macrophyte Limit 6.0 Meter

Overall RatingC - medium to poor

Species
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Stern-Armleuchteralge

(Nitellopsis obtusa)

1%

Type: Basic lawn

Raues Hornblatt

(Ceratophyllum demersum)

1%

Type: Submerged vegetation

Ähriges Tausendblatt

(Myriophyllum spicatum)

1%

Type: Submerged vegetation

Großes Nixkraut

(Najas marina)

10%

Type: Submerged vegetation

Spiegelndes Laichkraut

(Potamogeton lucens)

3%

Type: Submerged vegetation

Großseggenried

(Magnocaricion)

Type: Shore vegetation