Ruisseau
Grienwasser
Crosses 2 administrative regions : Bas-Rhin, Emmendingen
Total length
8km
Max discharge
0,2m³/s
Max Strahler
1
Segments matched
1
River geography2 admin regions · 2 communes
2 administrative regions crossed (GADM L2)
- EmmendingenBaden-Württemberg · Germany3.9 kmin this dpt
- Bas-RhinGrand Est · France0.0 kmin this dpt
2 communes (L5)For countries with L5
- Mackenheim0.00 km
- Marckolsheim0.00 km
12 intersecting protected areas
Rhin supérieur / Oberrhein
IUCN Not ReportedWetland of International Importance (Ramsar Site)
Secteur Alluvial Rhin-Ried-Bruch, Bas-Rhin
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Vallée du Rhin de Strasbourg à Marckolsheim
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Kaiserstuhl
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Taubergießen, Elz und Ettenbach
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Le Rhin
IUCN IVNational Hunting and Wildlife Reserve
Rheinniederung Sasbach - Wittenweier
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Rheinniederung Wyhl-Weisweil
IUCN IVNature Reserve
Rheinniederung Breisach - Sasbach mit Limberg
IUCN Not ReportedSpecial Protection Area (Birds Directive)
3 more protected areassorted by area
Kaiserstuhl
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Rheinniederung von Breisach bis Sasbach
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Limberg
IUCN IVNature Reserve
1 page = 1 named river (aggregation of 1 HydroRIVERS v10 segment). Spatial join cached after first hit.
Species present
1 623 distinct species · 9 124 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Grienwasser : 31 espèces reliées par 62 interactions GloBI sur 3 types (connectance 8.4%, filtre Serrano α=0.2). 8 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
8km
Max discharge
0,2m³/s
Max Strahler
1
Segments matched
1
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.