HydroBASINS lev08 watershed · #2080333040
Bassin de Wisła
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 5 administrative regions : Grudziądz, Kwidzyn, Starogard, Tczew, Świecie
Sub-basin area
339,8km²
Upstream area
188 547,7km²
Discharge
1 073,27m³/s
Mean elev.
49m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Młyńska Struga167 km²
- Bassin de Wisła43 km²
5 dept-equivalent regions (GADM L2)
- 152.5 km²44.7% of basin
- 93.4 km²27.4% of basin
- Świecie48.6 km²14.2% of basin
- 32.0 km²9.4% of basin
- 14.7 km²4.3% of basin
13 intersecting protected areas
Nadwiślański (woj. pomorskie)
IUCN Not AssignedProtected Landscape Area
45.94 km² overlap
Sadliński
IUCN Not AssignedProtected Landscape Area
42.80 km² overlap
Dolna Wisła
IUCN Not ReportedSite of Community Importance (Habitats Directive)
31.79 km² overlap
Dolina Dolnej Wisły
IUCN Not ReportedSpecial Protection Area (Birds Directive)
28.81 km² overlap
Nadwiślański Park Krajobrazowy
IUCN Not AssignedLandscape Park
20.42 km² overlap
Góry Łosiowe
IUCN Not AssignedLandscape Park
14.71 km² overlap
Doliny Kwidzyńskiej
IUCN Not AssignedProtected Landscape Area
13.65 km² overlap
Bory Tucholskie
IUCN Not ReportedSpecial Protection Area (Birds Directive)
3.30 km² overlap
Wschodni Borów Tucholskich
IUCN Not AssignedProtected Landscape Area
2.60 km² overlap
4 more protected areassorted by overlap area
Wiosło Duże
IUCN IVNature Reserve
0.30 km² overlap
Wiosło Małe
IUCN IVNature Reserve
0.25 km² overlap
Opalenie
IUCN Not AssignedNature Reserve
0.09 km² overlap
Gniewski
IUCN Not AssignedProtected Landscape Area
0.07 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 126 distinct species · 8 490 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 14 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 Wisła : 12 espèces reliées par 21 interactions GloBI sur 5 types (connectance 23.1%, filtre Serrano α=0.2). 2 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°
7,3°C
Annual rain
554mm
Moisture idx (CMI)
-0,17
Runoff
191mm/an
PET
671mm
AET
468mm
Mean slope
1,3°
Water table
116cm
Forest
22%
Crops
56%
Urban
1%
Protected
18%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)