HydroBASINS lev08 watershed · #2080506130
Bassin de Aare / Hagneckkanal
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 6 administrative regions : Aarberg, Bern, Erlach, Lac, Laupen +1
Sub-basin area
125,1km²
Upstream area
5 205,1km²
Discharge
148,85m³/s
Mean elev.
483m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de la Sarine1867 km²
- Bassin de Aare264 km²
6 dept-equivalent regions (GADM L2)
- AarbergBern · Switzerland53.7 km²42.8% of basin
- ErlachBern · Switzerland38.1 km²30.4% of basin
- NidauBern · Switzerland27.7 km²22.1% of basin
- LaupenBern · Switzerland3.6 km²2.9% of basin
- 1.9 km²1.6% of basin
- BernBern · Switzerland0.3 km²0.2% of basin
22 intersecting protected areas
Stausee Niederried
IUCN Not AssignedRAMSAR Sites
2.86 km² overlap
Niederried Stausee
IUCN IVWetland of International Importance (Ramsar Site)
2.86 km² overlap
Federal Inventory of Reserves for Waterbirds and Migratory Birds of International and National Imp.
2.71 km² overlap
Niederried-Oltigenmatt
IUCN IVFederal Inventory of Alluvial Zones of National Importance
1.67 km² overlap
Federal Inventory of Amphibian Spawning Areas of National Importance
0.70 km² overlap
Stausee Niederried (BE)
IUCN IVFederal Inventory of Reserves for Waterbirds and Migratory Birds of International and National Imp.
0.62 km² overlap
Alte Aare: Aarberg-Lyss
IUCN IVFederal Inventory of Alluvial Zones of National Importance
0.58 km² overlap
Hagneckdelta
IUCN IVFederal Inventory of Alluvial Zones of National Importance
0.32 km² overlap
Grammetwald
IUCN Not AssignedForest Reserves
0.23 km² overlap
13 more protected areassorted by overlap area
Oltigenmatt
IUCN IVFederal Inventory of Fenlands of National Importance
0.18 km² overlap
Tannholz-Chatzestiel-Sibirie
IUCN IVFederal Inventory of Amphibian Spawning Areas of National Importance
0.15 km² overlap
Täuffeler Riet
IUCN IVFederal Inventory of Fenlands of National Importance
0.13 km² overlap
Heidenweg
IUCN IVFederal Inventory of Fenlands of National Importance
0.12 km² overlap
Heideweg
IUCN IVFederal Inventory of Amphibian Spawning Areas of National Importance
0.08 km² overlap
Heidenweg/St. Petersinsel
IUCN IVFederal Inventory of Alluvial Zones of National Importance
0.08 km² overlap
Runti
IUCN Not AssignedForest Reserves
0.05 km² overlap
Büeltigen-Weiher
IUCN IVFederal Inventory of Amphibian Spawning Areas of National Importance
0.04 km² overlap
Grube uf der Hole
IUCN IVFederal Inventory of Amphibian Spawning Areas of National Importance
0.02 km² overlap
Stängelacher
IUCN IVFederal Inventory of Amphibian Spawning Areas of National Importance
0.01 km² overlap
Kiesgrube Mattehölzli
IUCN IVFederal Inventory of Amphibian Spawning Areas of National Importance
0.01 km² overlap
Golsenrainacher
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance
0.00 km² overlap
Burghubel
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
8 574 distinct species · 451 685 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 Bassin de Aare / Hagneckkanal : 27 espèces reliées par 159 interactions GloBI sur 5 types (connectance 18.5%, filtre Serrano α=0.2). 15 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°
8,8°C
Annual rain
917mm
Moisture idx (CMI)
0,13
Runoff
703mm/an
PET
794mm
AET
653mm
Mean slope
3,5°
Water table
172cm
Forest
65%
Crops
28%
Urban
4%
Protected
4%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)