Großer Rederank

A - excellent

10. July 2026

Habitat StructuresB

CriterionValue
Score charophyceaeB
Number of different typically formed accretion structures, such as swamp forest, willow bushes, reeds, etc. A

Species Inventory – Habitat TypicalA

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

ImpairmentsC

CriterionValue
Impairment moderately pronounced, rough hornwort, bumpy water lentil-floating mats see species table B
Anthropogenic Influences on <10% of the surveyed area
Natural Shore Accretion absent on <10% of the shoreline
Lower macrophyte boundary C
(Lower Macrophyte Limit)
Shallow Water Macrophyte Limit 2.6 Meter
Middle Macrophyte Limit 2.6 Meter
Lower Macrophyte Limit 2.6 Meter

Overall RatingA - excellent

Species
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Gegensätzliche Armleuchteralge

(Chara contraria)

1%

Type: Basic lawn

Kurzstachelige Armleuchteralge

(Chara papillosa f. intermedia)

2%

Type: Basic lawn

Hornblättrige Armleuchteralge

(Chara tomentosa)

20%

Type: Basic lawn

Gewöhnliche Armleuchteralge

(Chara vulgaris)

2%

Type: Basic lawn

Stern-Armleuchteralge

(Nitellopsis obtusa)

5%

Type: Basic lawn

Raues Hornblatt

(Ceratophyllum demersum)

4%

Type: Submerged vegetation

Ähriges Tausendblatt

(Myriophyllum spicatum)

3%

Type: Submerged vegetation

Krauses Laichkraut

(Potamogeton crispus)

3%

Type: Submerged vegetation

Spreizender Wasserhahnenfuß

(Ranunculus circinatus)

1%

Type: Submerged vegetation

Gewöhnliche Teichsimse

(Schoenoplectus lacustris)

2%

Type: Submerged vegetation

Krebsschere (untergetaucht)

(Stratiotes aloides submers)

40%

Type: Submerged vegetation

Kamm-Laichkraut

(Stuckenia pectinata)

1%

Type: Submerged vegetation

Gelbe Teichrose

(Nuphar lutea)

15%

Type: Floating leaf lawn

Weiße Seerose

(Nymphaea alba)

10%

Type: Floating leaf lawn

Schwimmendes Laichkraut

(Potamogeton natans)

4%

Type: Floating leaf lawn

Gewöhnlicher Wasserschlauch

(Utricularia vulgaris)

30%

Type: Floating mats

Weidengebüsch

(Salicion elaeagni)

Type: Shore vegetation

Röhricht

(Phragmites australis)

Type: Shore vegetation

Erlen-Bruchwald

(Alnetea glutinosae)

Type: Shore vegetation

Sumpfbinse

(Eleocharis spec.)

Type: Shore vegetation