Marxweiher

B - good

5. July 2025

Habitat StructuresB

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

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 C
Anthropogenic Influences on 10-25% of the surveyed area
Natural Shore Accretion absent on 10-50% of the shoreline
Lower macrophyte boundary A
(Lower Macrophyte Limit)
Middle Macrophyte Limit 10.0 Meter
Lower Macrophyte Limit 11.5 Meter

Overall RatingB - good

Species
Loading...

Zerbrechliche Armleuchteralge

(Chara globularis)

3%

Type: Basic lawn

Dunkle Glanzleuchteralge

(Nitella opaca)

2%

Type: Basic lawn

Stern-Armleuchteralge

(Nitellopsis obtusa)

2%

Type: Basic lawn

Faden-Grünalgen

(Vaucheria)

35%

Type: Basic lawn

Raues Hornblatt

(Ceratophyllum demersum)

3%

Type: Submerged vegetation

Nuttalls Wasserpest / Schmalblättrige Wasserpest

(Elodea nuttallii)

2%

Type: Submerged vegetation

Ähriges Tausendblatt

(Myriophyllum spicatum)

3%

Type: Submerged vegetation

Krauses Laichkraut

(Potamogeton crispus)

1%

Type: Submerged vegetation

Spiegelndes Laichkraut

(Potamogeton lucens)

3%

Type: Submerged vegetation

Kamm-Laichkraut

(Stuckenia pectinata)

1%

Type: Submerged vegetation

Weidengebüsch

(Salicion elaeagni)

Type: Shore vegetation

Großseggenried

(Magnocaricion)

Type: Shore vegetation