Rivière· 4 segments
Ochtum
Crosses 4 administrative regions : Bremen, Delmenhorst, Diepholz, Wesermarsch
Total length
26km
Max discharge
6,4m³/s
Max Strahler
4
Segments matched
4
River geography4 admin regions · 0 communes
4 administrative regions crossed (GADM L2)
- DiepholzNiedersachsen · Germany8.1 kmin this dpt
- BremenBremen · Germany4.0 kmin this dpt
- WesermarschNiedersachsen · Germany1.6 kmin this dpt
- DelmenhorstNiedersachsen · Germany0.4 kmin this dpt
15 intersecting protected areas
Bremen 1968 39. Änderung
IUCN VLandscape Protection Area
Niedervieland
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Landscape Protection Area
Werderland
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Landscape Protection Area
Weser zwischen Ochtummündung und Rekum
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Niedervieland-Stromer Feldmark
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Werderland
IUCN IVNature Reserve
Ochtumniederung
IUCN VLandscape Protection Area
6 more protected areassorted by area
Landscape Protection Area
Untere Delme, Hache, Ochtum und Varreler Bäke
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Korbinsel
IUCN VLandscape Protection Area
Bremische Ochtum
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Landscape Protection Area
Landscape Protection Area
1 page = 1 named river (aggregation of 4 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
1 261 distinct species · 7 644 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 Ochtum : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 75 interactions GloBI sur 4 types (connectance 10.1%, filtre Serrano α=0.2). 12 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
26km
Max discharge
6,4m³/s
Max Strahler
4
Segments matched
4
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.