HydroBASINS lev08 watershed · #2080331730

Bassin de Zbrzyca

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, Kościerzyna

51% lakePfafstetter: 24241046

Sub-basin area

368,4km²

Upstream area

368,4km²

Discharge

3,95m³/s

Mean elev.

162m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Brda1111 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

3 dept-equivalent regions (GADM L2)

Bytów
Pomorskie · Poland
202.3 km²
54.7% of basin
Chojnice
Pomorskie · Poland
133.5 km²
36.1% of basin
Kościerzyna
Pomorskie · Poland
34.3 km²
9.3% of basin

17 intersecting protected areas

Bory Tucholskie
IUCN Not Reported
Special Protection Area (Birds Directive)
214.01 km² overlap
Wielki Sandr Brdy
IUCN Not Reported
Special Protection Area (Birds Directive)
125.11 km² overlap
Zaborski Park Krajobrazowy
IUCN V
Landscape Park
122.31 km² overlap
Ostoja Zapceńska
IUCN Not Reported
Site of Community Importance (Habitats Directive)
36.70 km² overlap
Lipuski
IUCN Not Assigned
Protected Landscape Area
34.30 km² overlap
Fragment Borów Tucholskich
IUCN Not Assigned
Protected Landscape Area
29.56 km² overlap
Sandr Brdy
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
13.37 km² overlap
Bytowskie Jeziora Lobeliowe
IUCN Not Reported
Site of Community Importance (Habitats Directive)
3.32 km² overlap
Dolina Kulawy
IUCN Not Assigned
Nature Reserve
2.47 km² overlap

8 more protected areassorted by overlap area

Studzienickie Torfowiska
IUCN Not Reported
Site of Community Importance (Habitats Directive)
1.43 km² overlap
Jezioro Laska
IUCN IV
Nature Reserve
0.63 km² overlap
Północny - Część Zachodnia
IUCN Not Assigned
Protected Landscape Area
0.40 km² overlap
Piecki
IUCN IV
Nature Reserve
0.20 km² overlap
Lasy Rekowskie
IUCN Not Reported
Site of Community Importance (Habitats Directive)
0.16 km² overlap
Mechowisko Radość
IUCN Not Assigned
Nature Reserve
0.09 km² overlap
Kruszynek
IUCN Not Assigned
Nature Reserve
0.08 km² overlap
Nawionek
IUCN IV
Nature Reserve
0.01 km² overlap

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

1 494 distinct species · 17 830 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 31 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).

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Zbrzyca : 24 espèces reliées par 52 interactions GloBI sur 5 types (connectance 9.8%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.099

Patrimoniales

Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

6,9°C

Annual rain

659mm

Moisture idx (CMI)

0,02

Runoff

332mm/an

PET

644mm

AET

495mm

Mean slope

1,9°

Water table

182cm

Forest

79%

Crops

Urban

Protected

42%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)