HydroBASINS lev08 watershed · #2080508830
Bassin de la Sarine
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 19 administrative regions : Aigle, Bern, Broye-Vully, Conthey, Hérens +14
Sub-basin area
1 866,6km²
Upstream area
1 866,8km²
Discharge
41,85m³/s
Mean elev.
1 137m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
19 dept-equivalent regions (GADM L2)
- 501.4 km²26.8% of basin
- 268.1 km²14.3% of basin
- SaanenBern · Switzerland224.2 km²12.0% of basin
- 191.4 km²10.2% of basin
- 174.9 km²9.3% of basin
- SchwarzenburgBern · Switzerland155.4 km²8.3% of basin
- 109.9 km²5.9% of basin
- SeftigenBern · Switzerland55.3 km²3.0% of basin
11 moreFull L2 list
- Aigle44.4 km² · 2.4%
- Laupen43.3 km² · 2.3%
- Bern31.0 km² · 1.7%
- Lac23.2 km² · 1.2%
- La Veveyse16.9 km² · 0.9%
- Sion16.5 km² · 0.9%
- Obersimmental13.6 km² · 0.7%
- Niedersimmental1.6 km² · 0.1%
- Broye-Vully0.2 km² · 0.0%
- Hérens0.2 km² · 0.0%
- Conthey0.0 km² · 0.0%
30 intersecting protected areas
Pierreuse
IUCN Not AssignedPrivate Nature Reserves
33.10 km² overlap
Hochmatt-Motélon
IUCN IVFederal Hunting Reserves
29.54 km² overlap
Federal Inventory of Amphibian Spawning Areas of National Importance
13.74 km² overlap
Les Mosses
IUCN Not AssignedEmerald Sites
13.68 km² overlap
Les Mosses
IUCN Not ReportedEmerald Network
13.68 km² overlap
Les Bimis-Ciernes Picat
IUCN IVFederal Hunting Reserves
12.94 km² overlap
Réserve forestière naturelle de la Pierreuse
IUCN Not AssignedForest Reserves
11.28 km² overlap
Pierreuse-Gummfluh
IUCN IVFederal Hunting Reserves
10.10 km² overlap
Vanil Noir FR (32002)
IUCN Not AssignedPrivate Nature Reserves
9.95 km² overlap
21 more protected areassorted by overlap area
Dent de Lys
IUCN IVFederal Hunting Reserves
9.34 km² overlap
Vanil Noir VD (16009)
IUCN Not AssignedPrivate Nature Reserves
7.08 km² overlap
Petite Sarine
IUCN IVFederal Inventory of Amphibian Spawning Areas of National Importance
4.01 km² overlap
Réserve forestière mixte de la vallée de l'Hongrin
IUCN Not AssignedForest Reserves
3.33 km² overlap
Senseauen
IUCN IVFederal Inventory of Alluvial Zones of National Importance
3.13 km² overlap
La Sarine: Rossens-Fribourg
IUCN IVFederal Inventory of Alluvial Zones of National Importance
2.67 km² overlap
Gd Paine - Auta Chia
IUCN Not AssignedForest Reserves
2.46 km² overlap
Tour d'Aï - Tour de Famelon
IUCN Not AssignedPrivate Nature Reserves
2.25 km² overlap
Le Lapé
IUCN Not AssignedForest Reserves
2.11 km² overlap
Selenen Rotmoos
IUCN Not AssignedForest Reserves
1.78 km² overlap
Geltengletscher
IUCN IVFederal Inventory of Alluvial Zones of National Importance
1.77 km² overlap
Ärgera: Plasselb-Marly
IUCN IVFederal Inventory of Alluvial Zones of National Importance
1.74 km² overlap
Ärgera
IUCN IVFederal Inventory of Amphibian Spawning Areas of National Importance
1.74 km² overlap
St. Ursenvorschis
IUCN Not AssignedForest Reserves
1.58 km² overlap
La Leyte - Motélon
IUCN Not AssignedForest Reserves
1.55 km² overlap
Teuffengraben-Sackau
IUCN IVFederal Inventory of Alluvial Zones of National Importance
1.38 km² overlap
Petite-Sarine
IUCN Not AssignedForest Reserves
1.16 km² overlap
Lac de Pérolles (FR)
IUCN IVFederal Inventory of Reserves for Waterbirds and Migratory Birds of International and National Imp.
1.13 km² overlap
Federal Inventory of Fenlands of National Importance
1.05 km² overlap
Obergurnigelwald
IUCN Not AssignedForest Reserves
0.97 km² overlap
En Biffé
IUCN Not AssignedForest Reserves
0.97 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
12 885 distinct species · 1 550 503 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 22 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 la Sarine : 10 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 110 interactions GloBI sur 6 types (connectance 31.3%, filtre Serrano α=0.2). 17 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°
5,8°C
Annual rain
1 237mm
Moisture idx (CMI)
0,42
Runoff
761mm/an
PET
673mm
AET
621mm
Mean slope
14,4°
Water table
466cm
Forest
59%
Crops
9%
Urban
6%
Protected
7%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)