HydroBASINS lev08 watershed · #2080332660
Bassin de Prądzona
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 3 administrative regions : Bytów, Chojnice, Człuchów
Sub-basin area
265,9km²
Upstream area
265,9km²
Discharge
2,64m³/s
Mean elev.
158m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 175.2 km²65.6% of basin
- 91.4 km²34.2% of basin
- 0.4 km²0.2% of basin
11 intersecting protected areas
Fragment Borów Tucholskich
IUCN Not AssignedProtected Landscape Area
113.25 km² overlap
Ostoja Borzyszkowska
IUCN Not ReportedSite of Community Importance (Habitats Directive)
61.22 km² overlap
Wielki Sandr Brdy
IUCN Not ReportedSpecial Protection Area (Birds Directive)
50.35 km² overlap
Landscape Park
31.40 km² overlap
Nowa Brda
IUCN Not ReportedSite of Community Importance (Habitats Directive)
16.83 km² overlap
Bory Tucholskie
IUCN Not ReportedSpecial Protection Area (Birds Directive)
14.35 km² overlap
Doliny Brdy i Chociny
IUCN Not ReportedSite of Community Importance (Habitats Directive)
10.01 km² overlap
Ostoja Zapceńska
IUCN Not ReportedSite of Community Importance (Habitats Directive)
1.39 km² overlap
Źródliskowy Obszar Brdy i Wieprzy na Wschód od Miastka
IUCN Not AssignedProtected Landscape Area
0.71 km² overlap
2 more protected areassorted by overlap area
Ostrów Trzebielski
IUCN IVNature Reserve
0.08 km² overlap
Park Narodowy Bory Tucholskie
IUCN Not AssignedNational Park
0.07 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
709 distinct species · 5 638 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 Prądzona : 25 espèces reliées par 75 interactions GloBI sur 7 types (connectance 13.4%, filtre Serrano α=0.2). 9 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°
7,1°C
Annual rain
660mm
Moisture idx (CMI)
0,01
Runoff
320mm/an
PET
652mm
AET
498mm
Mean slope
1,5°
Water table
118cm
Forest
49%
Crops
26%
Urban
0%
Protected
12%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)