Dive

Drewitzer See

B - good

25. October 2026

Habitat StructuresB

Criterion	Value
Score charophyceae	C
Number of different typically formed accretion structures, such as swamp forest, willow bushes, reeds, etc.	A

Species Inventory – Habitat TypicalA

Criterion	Value
All stoneworts, higher water plants with a trophic index < 2.5 – see species table	A

ImpairmentsC

Criterion	Value
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 <10% of the shoreline
Lower macrophyte boundary	A (Lower Macrophyte Limit)
Shallow Water Macrophyte Limit	7.3 Meter
Middle Macrophyte Limit	10.7 Meter
Lower Macrophyte Limit	11.6 Meter

Overall RatingB - good

Species

Gegensätzliche Armleuchteralge

(Chara contraria)

Type: Basic lawn

Faden-Armleuchteralge

(Chara filiformis)

Type: Basic lawn

Zerbrechliche Armleuchteralge

(Chara globularis)

Type: Basic lawn

Faden-Grünalgen

(Vaucheria)

20%

Type: Basic lawn

Raues Hornblatt

(Ceratophyllum demersum)

Type: Submerged vegetation

Kanadische Wasserpest

(Elodea canadensis)

Type: Submerged vegetation

Nuttalls Wasserpest / Schmalblättrige Wasserpest

(Elodea nuttallii)

20%

Type: Submerged vegetation

Ähriges Tausendblatt

(Myriophyllum spicatum)

Type: Submerged vegetation

Großes Nixkraut

(Najas marina)

Type: Submerged vegetation

Durchwachsenes Laichkraut

(Potamogeton perfoliatus)

Type: Submerged vegetation

Krebsschere (untergetaucht)

(Stratiotes aloides submers)

Type: Submerged vegetation

Kamm-Laichkraut

(Stuckenia pectinata)

Type: Submerged vegetation

Teichpflaume

(Nostoc pruniforme)

Type: Floating mats

Weidengebüsch

(Salicion elaeagni)

Type: Shore vegetation

Röhricht

(Phragmites australis)

Type: Shore vegetation

Erlen-Bruchwald

(Alnetea glutinosae)

Type: Shore vegetation