Giesenschlagsee, Mitte

B - good

18. May 2024

Habitat StructuresA

CriterionValue
Score charophyceaeA
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 10-25% of the surveyed area
Natural Shore Accretion absent on <10% of the shoreline
Lower macrophyte boundary B
(Lower Macrophyte Limit)
Lower Macrophyte Limit 5.7 Meter

Overall RatingB - good

Species
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Gegensätzliche Armleuchteralge

(Chara contraria)

4%

Type: Basic lawn

Faden-Armleuchteralge

(Chara filiformis)

5%

Type: Basic lawn

Furchenstachelige Armleuchteralge

(Chara subspinosa)

4%

Type: Basic lawn

Hornblättrige Armleuchteralge

(Chara tomentosa)

20%

Type: Basic lawn

Kanadische Wasserpest

(Elodea canadensis)

5%

Type: Submerged vegetation

Stern-Armleuchteralge

(Nitellopsis obtusa)

45%

Type: Basic lawn

Raues Hornblatt

(Ceratophyllum demersum)

5%

Type: Submerged vegetation

Ähriges Tausendblatt

(Myriophyllum spicatum)

5%

Type: Submerged vegetation

Quirliges Tausendblatt

(Myriophyllum verticillatum)

30%

Type: Submerged vegetation

Schwimmendes Laichkraut

(Potamogeton natans)

2%

Type: Floating leaf lawn

Durchwachsenes Laichkraut

(Potamogeton perfoliatus)

1%

Type: Submerged vegetation

Spreizender Wasserhahnenfuß

(Ranunculus circinatus)

2%

Type: Submerged vegetation

Kamm-Laichkraut

(Stuckenia pectinata)

6%

Type: Submerged vegetation

Weiße Seerose

(Nymphaea alba)

6%

Type: Floating leaf lawn

Röhricht

(Phragmites australis)

Type: Shore vegetation

Großseggenried

(Magnocaricion)

Type: Shore vegetation

Erlen-Bruchwald

(Alnetea glutinosae)

Type: Shore vegetation