Fleuve· 38 segments
Lahn
Crosses 9 administrative regions : Gießen, Koblenz, Lahn-Dill-Kreis, Limburg-Weilburg, Marburg-Biedenkopf +4
Total length
274km
Max discharge
1 760,6m³/s
Max Strahler
7
Segments matched
38
River geography9 admin regions · 0 communes
9 administrative regions crossed (GADM L2)
- Rhein-Lahn-KreisRheinland-Pfalz · Germany41.6 kmin this dpt
- Limburg-WeilburgHessen · Germany39.3 kmin this dpt
- Marburg-BiedenkopfHessen · Germany27.3 kmin this dpt
- Lahn-Dill-KreisHessen · Germany25.0 kmin this dpt
- GießenHessen · Germany18.4 kmin this dpt
- Siegen-WittgensteinNordrhein-Westfalen · Germany8.3 kmin this dpt
- WesterwaldkreisRheinland-Pfalz · Germany0.7 kmin this dpt
- Mayen-KoblenzRheinland-Pfalz · Germany0.0 kmin this dpt
- KoblenzRheinland-Pfalz · Germany0.0 kmin this dpt
30 intersecting protected areas
Landscape Protection Area
Mittelrheintal
IUCN Not ReportedSpecial Protection Area (Birds Directive)
LSG-Bad Laasphe
IUCN VLandscape Protection Area
Lahnhänge zwischen Biedenkopf und Marburg
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Auenverbund Lahn-Dill
IUCN VLandscape Protection Area
Auenverbund Lahn-Ohm
IUCN VLandscape Protection Area
Lahnhänge
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Rheinhänge zwischen Lahnstein und Kaub
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Waldgebiet östlich von Allendorf und nördlich von Leun
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
21 more protected areassorted by area
Montabaurer Höhe
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Lahntal und seine Hänge
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Buchenwälder und Wiesentäler bei Bad Laasphe
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Lahnhänge
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Nature Reserve
Mittelrhein
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Lahntal zwischen Marburg und Gießen
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Landscape Protection Area
Feldflur bei Limburg
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Lahnaue zwischen Atzbach und Gießen
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Grünland und Wälder zwischen Frankenbach und Heuchelheim
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Obere Lahn und Wetschaft mit Nebengewässern
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Lahnaue zwischen Atzbach und Gießen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Wald und Schiefergruben bei Langhecke und Klein-Weinbach
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Steinbrüche in Mittelhessen
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Nature Reserve
Weinberg bei Wetzlar
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Weinberg bei Wetzlar
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Koppelstein - Helmestal
IUCN IVNature Reserve
Lahnwiesen zwischen Burgsolms und Oberbiel
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Gabelstein-Hölloch
IUCN IVNature Reserve
1 page = 1 named river (aggregation of 38 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
1 086 distinct species · 3 640 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 50 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 Lahn : 44 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 106 interactions GloBI sur 5 types (connectance 8.7%, filtre Serrano α=0.2). 6 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
274km
Max discharge
1 760,6m³/s
Max Strahler
7
Segments matched
38
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.