HydroBASINS lev08 watershed · #2080457240
Bassin de Altrhein
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 2 administrative regions across 2 countries : Bas-Rhin, Rastatt
Sub-basin area
0,5km²
Upstream area
48 971,2km²
Discharge
1 264,95m³/s
Mean elev.
111m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin du Seltzbach649 km²
- Bassin de la Moder47 km²
2 dept-equivalent regions (GADM L2)
- Rastatt0.5 km²96.8% of basin
- 0.0 km²3.2% of basin
1 communes (GADM L5)Available for FRA, RWA
- Munchhausen0.02 km²0% commune
7 intersecting protected areas
Rheinniederung von der Rench- bis zur Murgmündung
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.49 km² overlap
Rheinniederung zwischen Wintersdorf und Karlsruhe
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.49 km² overlap
Rastatter Rheinaue
IUCN IVNature Reserve
0.32 km² overlap
Silberweidenwald Steinmauern
IUCN IVNature Reserve
0.06 km² overlap
Vallée du Rhin de Lauterbourg à Strasbourg
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.01 km² overlap
Rhin supérieur / Oberrhein
IUCN Not ReportedWetland of International Importance (Ramsar Site)
0.01 km² overlap
Le Rhin
IUCN IVNational Hunting and Wildlife Reserve
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 695 distinct species · 50 102 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Altrhein : 26 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 77 interactions GloBI sur 5 types (connectance 12.9%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
10,4°C
Annual rain
698mm
Moisture idx (CMI)
-0,17
Runoff
449mm/an
PET
838mm
AET
589mm
Mean slope
0,0°
Water table
2cm
Forest
100%
Crops
20%
Urban
0%
Protected
75%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)