Flacher See

B - good

7. May 2026

Habitat StructuresB

CriterionValue
Score charophyceaeC
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

ImpairmentsC

CriterionValue
Impairment moderately pronounced, rough hornwort, bumpy water lentil-floating mats see species table B
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 4.4 Meter
Lower Macrophyte Limit 8.0 Meter

Overall RatingB - good

Species
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Zerbrechliche Armleuchteralge

(Chara globularis)

3%

Type: Basic lawn

Furchenstachelige Armleuchteralge

(Chara subspinosa)

6%

Type: Basic lawn

Raues Hornblatt

(Ceratophyllum demersum)

1%

Type: Submerged vegetation

Kanadische Wasserpest

(Elodea canadensis)

5%

Type: Submerged vegetation

Krauses Laichkraut

(Potamogeton crispus)

4%

Type: Submerged vegetation

Spiegelndes Laichkraut

(Potamogeton lucens)

2%

Type: Submerged vegetation

Spreizender Wasserhahnenfuß

(Ranunculus circinatus)

8%

Type: Submerged vegetation

Gewöhnliche Teichsimse

(Schoenoplectus lacustris)

1%

Type: Submerged vegetation

Gelbe Teichrose

(Nuphar lutea)

2%

Type: Floating leaf lawn

Gewöhnliches Quellmoos

(Fontinalis antipyretica)

3%

Type: Floating mats

Weidengebüsch

(Salicion elaeagni)

Type: Shore vegetation

Röhricht

(Phragmites australis)

Type: Shore vegetation

Erlen-Bruchwald

(Alnetea glutinosae)

Type: Shore vegetation