Dreifelder Weiher, Dreifelden

B - good

24. May 2025

Habitat StructuresB

CriterionValue
Decisive number of formed aquatic vegetation structuresB
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 A
Anthropogenic Influences on <10% of the surveyed area
Natural Shore Accretion absent on >50% of the shoreline
Lower macrophyte boundary A
(Lower Macrophyte Limit)
Middle Macrophyte Limit 4.0 Meter
Lower Macrophyte Limit 4.0 Meter

Overall RatingB - good

Species
Loading...

Dunkle Glanzleuchteralge

(Nitella opaca)

3%

Type: Basic lawn

Stern-Armleuchteralge

(Nitellopsis obtusa)

1%

Type: Basic lawn

Nuttalls Wasserpest / Schmalblättrige Wasserpest

(Elodea nuttallii)

2%

Type: Submerged vegetation

Krauses Laichkraut

(Potamogeton crispus)

1%

Type: Submerged vegetation

Gewöhnliches Zwerg-Laichkraut

(Potamogeton pusillus)

1%

Type: Submerged vegetation

Spreizender Wasserhahnenfuß

(Ranunculus circinatus)

1%

Type: Submerged vegetation

Sumpf-Teichfaden

(Zannichellia palustris)

3%

Type: Submerged vegetation

Europäischer Strandling

(Littorella uniflora)

1%

Type: Submerged vegetation

Haarfeine Glanzleuchteralge

(Nitella Capillaris)

1%

Type: Basic lawn

Tännel

(Elatine spec.)

2%

Type: Submerged vegetation

Nadel-Sumpfbinse

(Eleocharis acicularis)

1%

Type: Submerged vegetation

Pinselblättriger Wasserhahnenfuß

(ranunculus pencillatus)

1%

Type: Submerged vegetation

Röhricht

(Phragmites australis)

Type: Shore vegetation

Großseggenried

(Magnocaricion)

Type: Shore vegetation

Sumpfbinse

(Eleocharis spec.)

Type: Shore vegetation