Niederrheinsee

B - good

4. September 2024

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. A

Species Inventory – Habitat TypicalB

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

ImpairmentsB

CriterionValue
Impairment moderately pronounced, rough hornwort, bumpy water lentil-floating mats see species table A
Anthropogenic Influences on 10-25% of the surveyed area
Natural Shore Accretion absent on <10% of the shoreline
Lower macrophyte boundary A
(Lower Macrophyte Limit)
Middle Macrophyte Limit 5.5 Meter
Lower Macrophyte Limit 5.5 Meter

Overall RatingB - good

Species
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Zerbrechliche Armleuchteralge

(Chara globularis)

1%

Type: Basic lawn

Stachelspitzige Glanzleuchteralge

(Nitella mucronata)

1%

Type: Basic lawn

Ähriges Tausendblatt

(Myriophyllum spicatum)

2%

Type: Submerged vegetation

Schwimmendes Laichkraut

(Potamogeton natans)

2%

Type: Floating leaf lawn

Gegensätzliche Armleuchteralge

(Chara contraria)

1%

Type: Basic lawn

Stern-Armleuchteralge

(Nitellopsis obtusa)

1%

Type: Basic lawn

Großes Nixkraut

(Najas marina)

3%

Type: Submerged vegetation

Weidengebüsch

(Salicion elaeagni)

Type: Shore vegetation

Röhricht

(Phragmites australis)

Type: Shore vegetation

Großseggenried

(Magnocaricion)

Type: Shore vegetation