HydroBASINS lev08 watershed · #2080490680

Bassin de Aach

A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.

Crosses 6 administrative regions across 2 countries : Bodensee, Bodenseekreis, Konstanz, Sigmaringen, Tuttlingen

111% lakePfafstetter: 23269052

Sub-basin area

705,7km²

Upstream area

705,7km²

Discharge

14,35m³/s

Mean elev.

543m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Rhein1091 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

6 dept-equivalent regions (GADM L2)

Bodenseekreis
Baden-Württemberg · Germany
328.0 km²
46.3% of basin
Konstanz
Baden-Württemberg · Germany
227.5 km²
32.1% of basin
Bodensee
Baden-Württemberg · Germany
79.2 km²
11.2% of basin
Sigmaringen
Baden-Württemberg · Germany
70.5 km²
10.0% of basin
Tuttlingen
Baden-Württemberg · Germany
2.0 km²
0.3% of basin
Bodensee
Thurgau · Switzerland
0.6 km²
0.1% of basin

30 intersecting protected areas

Bodanrück und westl. Bodensee
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
56.86 km² overlap
Überlinger See und Bodenseeuferlandschaft
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
37.85 km² overlap
Bodenseeufer (19 Teilgebiete)
IUCN V
Landscape Protection Area
35.61 km² overlap
Überlinger See des Bodensees
IUCN Not Reported
Special Protection Area (Birds Directive)
25.56 km² overlap
Bodanrück
IUCN Not Reported
Special Protection Area (Birds Directive)
14.03 km² overlap
Bodanrück
IUCN V
Landscape Protection Area
9.45 km² overlap
Bodenseeufer
IUCN V
Landscape Protection Area
8.71 km² overlap
Bodenseeufer
IUCN V
Landscape Protection Area
8.04 km² overlap
Deggenhauser Tal
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
6.82 km² overlap

21 more protected areassorted by overlap area

Salem-Killenweiher
IUCN V
Landscape Protection Area
5.44 km² overlap
Östlicher Hegau und Linzgau
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
4.93 km² overlap
Lippertsreuter Umland
IUCN V
Landscape Protection Area
4.65 km² overlap
Bodensee Hinterland bei Überlingen
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
3.35 km² overlap
Bodenseeufer (Gmk. Litzelstetten, Dingelsdorf, Dettingen)
IUCN IV
Nature Reserve
2.47 km² overlap
Bodenseehinterland zwischen Salem und Markdorf
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
2.18 km² overlap
Riede und Gewässer bei Mengen und Pfullendorf
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
2.05 km² overlap
Heiligenberg
IUCN V
Landscape Protection Area
2.02 km² overlap
Salemer Klosterweiher
IUCN Not Reported
Special Protection Area (Birds Directive)
1.37 km² overlap
Ruhestetter Ried
IUCN IV
Nature Reserve
1.32 km² overlap
Westlicher Hegau
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
1.25 km² overlap
Bodenseeufer (Bodman-Ludwigshafen)
IUCN IV
Nature Reserve
1.23 km² overlap
Aachtobel
IUCN IV
Nature Reserve
0.97 km² overlap
Krebsbachtal
IUCN V
Landscape Protection Area
0.92 km² overlap
Ruhestetter Ried
IUCN V
Landscape Protection Area
0.68 km² overlap
Ablach, Baggerseen und Waltere Moor
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
0.67 km² overlap
Seefelder Aachmündung
IUCN IV
Nature Reserve
0.55 km² overlap
Schanderied
IUCN V
Landscape Protection Area
0.51 km² overlap
Bodenseeufer - Untere Güll
IUCN IV
Nature Reserve
0.49 km² overlap
Schanderied
IUCN IV
Nature Reserve
0.46 km² overlap
Obere Güll
IUCN IV
Nature Reserve
0.45 km² overlap

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

4 768 distinct species · 84 141 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 29 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.

ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Aach : 18 espèces reliées par 90 interactions GloBI sur 6 types (connectance 20.7%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.207

Patrimoniales

Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

8,8°C

Annual rain

965mm

Moisture idx (CMI)

0,19

Runoff

640mm/an

PET

782mm

AET

690mm

Mean slope

4,5°

Water table

239cm

Forest

58%

Crops

28%

Urban

11%

Protected

12%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)