HydroBASINS lev08 watershed · #2080269240
Bassin de Gauja
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 4 administrative regions across 2 countries : Karula, Taheva, Valka, Valmiera
Sub-basin area
1 337,4km²
Upstream area
5 757,6km²
Discharge
59,83m³/s
Mean elev.
71m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Vaidava1826 km²
- Bassin de Gauja1116 km²
4 dept-equivalent regions (GADM L2)
30 intersecting protected areas
Ziemeļgauja
IUCN Not ReportedSpecial Protection Area (Birds Directive)
180.47 km² overlap
Ziemeļgauja
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
180.47 km² overlap
Ziemeļgauja
IUCN VProtected Landscape Area
180.43 km² overlap
Biosphere Reserve
136.40 km² overlap
Sedas purvs
IUCN IVNature Reserve
37.44 km² overlap
Sedas purvs
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
37.44 km² overlap
Sedas purvs
IUCN Not ReportedSpecial Protection Area (Birds Directive)
37.44 km² overlap
Karula rahvuspark
IUCN Not AssignedNational park
27.46 km² overlap
Karula
IUCN Not ReportedSpecial Protection Area (Birds Directive)
27.46 km² overlap
21 more protected areassorted by overlap area
Karula
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
27.46 km² overlap
Koiva-Mustjõe
IUCN Not ReportedSpecial Protection Area (Birds Directive)
14.86 km² overlap
Koiva-Mustjõe luha
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
13.24 km² overlap
Koiva-Mustjõe maastikukaitseala
IUCN Not AssignedProtected landscape (nature park)
13.24 km² overlap
Limited management zone of national park
11.97 km² overlap
Limited management zone of protected landscape
7.09 km² overlap
Karula RP, Apjajärve skv.
IUCN IbWilderness conservation zone of national park
3.51 km² overlap
Karula RP, Verioja skv.
IUCN IbWilderness conservation zone of national park
2.60 km² overlap
Aheru
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.32 km² overlap
Aheru järve hoiuala
IUCN VILimited-conservation area
2.32 km² overlap
Vadaiņu purvs
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.27 km² overlap
Vadaiņu purvs
IUCN IVNature Reserve
2.27 km² overlap
Managed conservation zone of protected landscape
2.15 km² overlap
Karula RP, Kuigli skv.
IUCN IVManaged conservation zone of national park
1.69 km² overlap
Koiva-Mustjõe luha hoiuala
IUCN VILimited-conservation area
1.62 km² overlap
Igaunijas riests
IUCN IVMicro-reserve
1.61 km² overlap
Igaunijas riests
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.61 km² overlap
Managed conservation zone of protected landscape
1.47 km² overlap
Karula RP, Rebäse skv.
IUCN IVManaged conservation zone of national park
1.41 km² overlap
Karula RP, Õdri skv.
IUCN IVManaged conservation zone of national park
1.33 km² overlap
VEP nr.127229
IUCN Not AssignedWoodland key habitat
1.31 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
5 467 distinct species · 36 604 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 40 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 Gauja : 29 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 98 interactions GloBI sur 6 types (connectance 12.6%, filtre Serrano α=0.2). 11 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°
5,3°C
Annual rain
649mm
Moisture idx (CMI)
0,10
Runoff
324mm/an
PET
585mm
AET
451mm
Mean slope
1,2°
Water table
63cm
Forest
54%
Crops
22%
Urban
0%
Protected
27%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)