HydroBASINS lev08 watershed · #2080490790

Bassin de Rotach

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 12 administrative regions across 2 countries : Appenzell Ausserrhoden, Arbon, Bischofszell, Bodensee, Bodenseekreis +6

321% lakePfafstetter: 23269053

Sub-basin area

587,6km²

Upstream area

10 143,5km²

Discharge

320,05m³/s

Mean elev.

473m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Rhein1091 km²

▲ Receives from 2 basins

Bassin de Schussen837 km²
Bassin de Mühlebach123 km²

12 dept-equivalent regions (GADM L2)

Bodenseekreis
Baden-Württemberg · Germany
143.4 km²
24.3% of basin
Bodensee
Thurgau · Switzerland
96.9 km²
16.4% of basin
Bodensee
Baden-Württemberg · Germany
89.8 km²
15.2% of basin
Arbon
Thurgau · Switzerland
68.0 km²
11.5% of basin
Ravensburg
Baden-Württemberg · Germany
60.8 km²
10.3% of basin
Bischofszell
Thurgau · Switzerland
37.8 km²
6.4% of basin
Sankt Gallen
Sankt Gallen · Switzerland
37.1 km²
6.3% of basin
Kreuzlingen
Thurgau · Switzerland
33.2 km²
5.6% of basin

4 moreFull L2 list

Rorschach15.2 km² · 2.6%
Weinfelden4.9 km² · 0.8%
Appenzell Ausserrhoden1.7 km² · 0.3%
Sigmaringen0.7 km² · 0.1%

30 intersecting protected areas

Rotachtobel und Zußdorfer Wald
IUCN V
Landscape Protection Area
19.45 km² overlap
Rotachtal Bodensee
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
4.91 km² overlap
Bodenseeufer westlich Friedrichshafen
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
4.87 km² overlap
Bodenseehinterland zwischen Salem und Markdorf
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
2.42 km² overlap
Bodenseeufer (19 Teilgebiete)
IUCN V
Landscape Protection Area
2.38 km² overlap
Deggenhauser Tal
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
1.67 km² overlap
Rorschacher Bucht / Arbon (SG)
IUCN IV
Federal Inventory of Reserves for Waterbirds and Migratory Birds of International and National Imp.
1.19 km² overlap
Württembergisches Bodenseeufer - Neufassung Teilbereich Friedrichhafen-West -
IUCN V
Landscape Protection Area
1.10 km² overlap
Haldenberg
IUCN V
Landscape Protection Area
1.02 km² overlap

21 more protected areassorted by overlap area

Eriskircher Ried
IUCN Not Reported
Special Protection Area (Birds Directive)
0.99 km² overlap
Eriskircher Ried
IUCN IV
Nature Reserve
0.99 km² overlap
Bodenseeuferlandschaft östlich Friedrichshafen
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
0.98 km² overlap
Pfrunger Ried und Seen bei Illmensee
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
0.82 km² overlap
Altweiherwiese
IUCN IV
Nature Reserve
0.77 km² overlap
Altweiherwiese und Taldorfer Bach
IUCN V
Landscape Protection Area
0.72 km² overlap
Pfrunger Ried - Rinkenburg
IUCN V
Landscape Protection Area
0.71 km² overlap
Hepbacher - Leimbacher Ried ( 2 Teilgebiete)
IUCN V
Landscape Protection Area
0.66 km² overlap
Güttingerwald
IUCN Not Assigned
Forest Reserves
0.66 km² overlap
Hepbacher - Leimbacher Ried
IUCN IV
Nature Reserve
0.46 km² overlap
Württembergisches Bodenseeufer
IUCN V
Landscape Protection Area
0.35 km² overlap
Lipbachsenke
IUCN IV
Nature Reserve
0.28 km² overlap
Chappenhuserhau
IUCN Not Assigned
Forest Reserves
0.27 km² overlap
Lipbachsenke
IUCN V
Landscape Protection Area
0.25 km² overlap
Luxburger Bucht
IUCN IV
Federal Inventory of Fenlands of National Importance
0.20 km² overlap
Hudelmoos
IUCN IV
Federal Inventory of Amphibian Spawning Areas of National Importance
0.16 km² overlap
Markdorfer Eisweiher
IUCN V
Landscape Protection Area
0.16 km² overlap
Lipbachmündung
IUCN IV
Nature Reserve
0.15 km² overlap
Pfrunger und Burgweiler Ried
IUCN Not Reported
Special Protection Area (Birds Directive)
0.13 km² overlap
Markdorfer Eisweiher
IUCN IV
Nature Reserve
0.12 km² overlap
Biessenhofer Weiher
IUCN IV
Federal Inventory of Amphibian Spawning Areas of National Importance
0.12 km² overlap

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

Species present

5 535 distinct species · 131 988 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 41 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 Rotach : 36 espèces + 5 bulles famille, 78 interactions GloBI documentées sur 5 types (connectance 9.5%, filtre Serrano α=0.2). Les 5 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées

Interactions affichées

Connectance

0.095

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°

9,0°C

Annual rain

1 015mm

Moisture idx (CMI)

0,23

Runoff

874mm/an

PET

783mm

AET

712mm

Mean slope

2,2°

Water table

113cm

Forest

36%

Crops

28%

Urban

24%

Protected

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