Fleuve· 6 segments
Altrhein
Crosses 7 administrative regions : Alzey-Worms, Bas-Rhin, Germersheim, Groß-Gerau, Karlsruhe +2
Total length
53km
Max discharge
1 501,9m³/s
Max Strahler
7
Segments matched
6
River geography7 admin regions · 2 communes
7 administrative regions crossed (GADM L2)
- Groß-GerauHessen · Germany14.9 kmin this dpt
- RastattBaden-Württemberg · Germany3.6 kmin this dpt
- KarlsruheBaden-Württemberg · Germany1.9 kmin this dpt
- GermersheimRheinland-Pfalz · Germany1.4 kmin this dpt
- Bas-RhinGrand Est · France1.3 kmin this dpt
- Alzey-WormsRheinland-Pfalz · Germany0.0 kmin this dpt
- Mainz-BingenRheinland-Pfalz · Germany0.0 kmin this dpt
2 communes (L5)For countries with L5
- Seltz1.31 km
- Munchhausen0.00 km
30 intersecting protected areas
Landscape Protection Area
Rhin supérieur / Oberrhein
IUCN Not ReportedWetland of International Importance (Ramsar Site)
Pfälzische Rheinauen
IUCN VLandscape Protection Area
Secteur Alluvial Rhin-Ried-Bruch, Bas-Rhin
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Bienwaldschwemmfächer
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Vallée du Rhin de Lauterbourg à Strasbourg
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Hessisches Ried mit Kühkopf-Knoblochsaue
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Rheinniederung zwischen Wintersdorf und Karlsruhe
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Rheinniederung Karlsruhe - Rheinsheim
IUCN Not ReportedSpecial Protection Area (Birds Directive)
21 more protected areassorted by area
Le Rhin
IUCN IVNational Hunting and Wildlife Reserve
Rheinniederung von Karlsruhe bis Philippsburg
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Rheinniederung von der Rench- bis zur Murgmündung
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Landscape Protection Area
Hördter Rheinaue
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Kühkopf-Knoblochsaue
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Kühkopf-Knoblochsaue
IUCN IVNature Reserve
Hördter Rheinaue inklusive Kahnbusch und Oberscherpfer Wald
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Landscape Protection Area
Wanderfischgebiete im Rhein
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Rastatter Ried
IUCN VLandscape Protection Area
Hördter Rheinaue
IUCN IVNature Reserve
Rastatter Rheinaue
IUCN IVNature Reserve
Eich-Gimbsheimer Altrhein
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Eich-Gimbsheimer Altrhein
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Delta De La Sauer
IUCN IVNational Nature Reserve
Oberrhein von Worms bis Mainz
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Rheinniederung zwischen Gimbsheim und Oppenheim
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Schilfgebiete zwischen Gimbsheim und Oppenheim inklusive Fischsee
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Neupotzer Altrhein
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Karlskopf und Leimersheimer Altrhein
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1 page = 1 named river (aggregation of 6 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
818 distinct species · 6 820 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 45 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 Altrhein : 36 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 90 interactions GloBI sur 5 types (connectance 9.1%, 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).
Hydrology (HydroRIVERS v10)
Total length
53km
Max discharge
1 501,9m³/s
Max Strahler
7
Segments matched
6
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.