HydroBASINS lev08 watershed · #2080026430
Bassin de Piaśnica
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 2 administrative regions : Puck, Wejherowo
Sub-basin area
335,8km²
Upstream area
335,8km²
Discharge
4,34m³/s
Mean elev.
49m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 184.7 km²54.8% of basin
- 152.5 km²45.2% of basin
23 intersecting protected areas
Puszczy Darżlubskiej
IUCN Not AssignedProtected Landscape Area
63.25 km² overlap
Nadmorski
IUCN Not AssignedProtected Landscape Area
47.89 km² overlap
Choczewsko-Saliński
IUCN Not AssignedProtected Landscape Area
35.51 km² overlap
Puszcza Darżlubska
IUCN Not ReportedSpecial Protection Area (Birds Directive)
21.64 km² overlap
Landscape Park
13.34 km² overlap
Lasy Lęborskie
IUCN Not ReportedSpecial Protection Area (Birds Directive)
10.49 km² overlap
Bielawski
IUCN Not AssignedProtected Landscape Area
9.96 km² overlap
Jeziora Choczewskie
IUCN Not ReportedSite of Community Importance (Habitats Directive)
9.20 km² overlap
Piaśnickie Łąki
IUCN Not ReportedSite of Community Importance (Habitats Directive)
8.12 km² overlap
14 more protected areassorted by overlap area
Bielawa i Bory Bażynowe
IUCN Not ReportedSite of Community Importance (Habitats Directive)
4.05 km² overlap
Bielawskie Błota
IUCN Not ReportedSpecial Protection Area (Birds Directive)
4.03 km² overlap
Opalińskie Buczyny
IUCN Not ReportedSite of Community Importance (Habitats Directive)
3.31 km² overlap
Bielawa
IUCN IVNature Reserve
1.88 km² overlap
Nature Reserve
1.46 km² overlap
Białogóra
IUCN Not ReportedSite of Community Importance (Habitats Directive)
0.95 km² overlap
Białogóra
IUCN IVNature Reserve
0.67 km² overlap
Piaśnickie Łąki
IUCN IVNature Reserve
0.61 km² overlap
Salińskie Margle
IUCN Not AssignedNature Reserve
0.17 km² overlap
Zielone
IUCN IVNature Reserve
0.17 km² overlap
Przybrzeżne wody Bałtyku
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.12 km² overlap
Przybrzezne Wody Baltyku
IUCN Not ReportedBaltic Sea Protected Area (HELCOM)
0.12 km² overlap
Widowo
IUCN IVNature Reserve
0.00 km² overlap
Widowo
IUCN Not ReportedSite of Community Importance (Habitats Directive)
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 998 distinct species · 17 405 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 Piaśnica : 28 espèces reliées par 93 interactions GloBI sur 6 types (connectance 13.2%, filtre Serrano α=0.2). 10 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
618mm
Moisture idx (CMI)
0,04
Runoff
385mm/an
PET
593mm
AET
457mm
Mean slope
1,7°
Water table
269cm
Forest
36%
Crops
32%
Urban
0%
Protected
32%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)