Wechselsee Biebesheim

B - good

15. November 2023

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 C
Anthropogenic Influences on >25% of the surveyed area
Natural Shore Accretion absent on 10-50% of the shoreline
Lower macrophyte boundary B
(Lower Macrophyte Limit)
Lower Macrophyte Limit 6.57 Meter

Overall RatingB - good

Species
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Gegensätzliche Armleuchteralge

(Chara contraria)

5%

Type: Basic lawn

Zerbrechliche Armleuchteralge

(Chara globularis)

5%

Type: Basic lawn

Gewöhnliche Armleuchteralge

(Chara vulgaris)

5%

Type: Basic lawn

Nuttalls Wasserpest / Schmalblättrige Wasserpest

(Elodea nuttallii)

10%

Type: Submerged vegetation

Dunkle Glanzleuchteralge

(Nitella opaca)

2%

Type: Basic lawn

Stern-Armleuchteralge

(Nitellopsis obtusa)

20%

Type: Basic lawn

Faden-Grünalgen

(Vaucheria)

5%

Type: Basic lawn

Raues Hornblatt

(Ceratophyllum demersum)

15%

Type: Submerged vegetation

Ähriges Tausendblatt

(Myriophyllum spicatum)

5%

Type: Submerged vegetation

Berchtolds Zwerglaichkraut

(Potamogeton berchtoldii)

3%

Type: Basic lawn

Krauses Laichkraut

(Potamogeton crispus)

5%

Type: Submerged vegetation

Spiegelndes Laichkraut

(Potamogeton lucens)

5%

Type: Submerged vegetation

Knoten-Laichkraut

(Potamogeton nodosus)

2%

Type: Submerged vegetation

Durchwachsenes Laichkraut

(Potamogeton perfoliatus)

5%

Type: Submerged vegetation

Gewöhnliches Zwerg-Laichkraut

(Potamogeton pusillus)

5%

Type: Submerged vegetation

Kamm-Laichkraut

(Stuckenia pectinata)

10%

Type: Submerged vegetation

Weiße Seerose

(Nymphaea alba)

5%

Type: Floating leaf lawn

Gewöhnliches Quellmoos

(Fontinalis antipyretica)

2%

Type: Floating mats

Schirmförmige Glanzleuchteralge

(Nitella tenuissima)

0%

Type: Basic lawn

Haarblättriges Laichkraut

(Potamogeton trichoides)

2%

Type: Submerged vegetation

Weidengebüsch

(Salicion elaeagni)

Type: Shore vegetation

Röhricht

(Phragmites australis)

Type: Shore vegetation

Erlen-Bruchwald

(Alnetea glutinosae)

Type: Shore vegetation