Niederweimarer See

B - good

13. July 2024

Habitat StructuresB

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

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 >50% of the shoreline
Lower macrophyte boundary A
(Lower Macrophyte Limit)
Shallow Water Macrophyte Limit 0.0 Meter
Middle Macrophyte Limit 6.0 Meter
Lower Macrophyte Limit 10.0 Meter

Overall RatingB - good

Species
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Chara globata

(Chara globata)

5%

Type: Basic lawn

Stachelspitzige Glanzleuchteralge

(Nitella mucronata)

10%

Type: Basic lawn

Dunkle Glanzleuchteralge

(Nitella opaca)

10%

Type: Basic lawn

Glanzleuchteralgen

(Nitella spec.)

2%

Type: Basic lawn

Stern-Armleuchteralge

(Nitellopsis obtusa)

1%

Type: Basic lawn

Raues Hornblatt

(Ceratophyllum demersum)

15%

Type: Submerged vegetation

Nuttalls Wasserpest / Schmalblättrige Wasserpest

(Elodea nuttallii)

25%

Type: Submerged vegetation

Ähriges Tausendblatt

(Myriophyllum spicatum)

10%

Type: Submerged vegetation

Berchtolds Zwerglaichkraut

(Potamogeton berchtoldii)

1%

Type: Basic lawn

Spreizender Wasserhahnenfuß

(Ranunculus circinatus)

1%

Type: Submerged vegetation

Kamm-Laichkraut

(Stuckenia pectinata)

8%

Type: Submerged vegetation

Weiße Seerose

(Nymphaea alba)

1%

Type: Floating leaf lawn

Röhricht

(Phragmites australis)

Type: Shore vegetation

Wasser-Knöterich

(Persicaria amphibia)

Type: Floating leaf lawn