HydroBASINS lev08 watershed · #2080327100
Bassin de Czarna
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 : Koszalin, Koszalin (City)
Sub-basin area
193km²
Upstream area
193km²
Discharge
2,32m³/s
Mean elev.
45m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 159.7 km²82.4% of basin
- 34.2 km²17.6% of basin
8 intersecting protected areas
Koszaliński Pas Nadmorski
IUCN Not AssignedProtected Landscape Area
12.59 km² overlap
Nature Reserve
3.73 km² overlap
Wiązogóra
IUCN Not ReportedSite of Community Importance (Habitats Directive)
3.06 km² overlap
Parnowo
IUCN IVNature Reserve
0.63 km² overlap
Mechowisko Manowo
IUCN Not AssignedNature Reserve
0.56 km² overlap
Mechowisko Manowo
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.56 km² overlap
Dolina Radwi (Mostowo-Zegrze)
IUCN Not AssignedProtected Landscape Area
0.13 km² overlap
Dolina Radwi, Chocieli i Chotli
IUCN Not ReportedSite of Community Importance (Habitats Directive)
0.11 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
785 distinct species · 2 333 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Czarna : 28 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 79 interactions GloBI sur 4 types (connectance 13.3%, filtre Serrano α=0.2). 7 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°
7,9°C
Annual rain
676mm
Moisture idx (CMI)
0,04
Runoff
378mm/an
PET
646mm
AET
503mm
Mean slope
1,4°
Water table
86cm
Forest
30%
Crops
34%
Urban
7%
Protected
9%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)