HydroBASINS lev08 watershed · #2080333170
Bassin de Łyna
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 4 administrative regions : Nidzica, Olsztyn, Olsztyn (City), Ostróda
Sub-basin area
597,9km²
Upstream area
597,9km²
Discharge
5,32m³/s
Mean elev.
163m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 371.1 km²61.8% of basin
- Ostróda93.8 km²15.6% of basin
- Nidzica88.1 km²14.7% of basin
- 47.4 km²7.9% of basin
18 intersecting protected areas
Puszczy Napiwodzko-Ramuckiej
IUCN Not AssignedProtected Landscape Area
316.66 km² overlap
Puszcza Napiwodzko-Ramucka
IUCN Not ReportedSpecial Protection Area (Birds Directive)
257.92 km² overlap
Ostoja Napiwodzko-Ramucka
IUCN Not ReportedSite of Community Importance (Habitats Directive)
142.55 km² overlap
Jeziora Mielno
IUCN Not AssignedProtected Landscape Area
87.17 km² overlap
Nature Reserve
18.22 km² overlap
Dolina Środkowej Łyny
IUCN Not AssignedProtected Landscape Area
7.71 km² overlap
Dolina Pasłęki
IUCN Not AssignedProtected Landscape Area
6.19 km² overlap
Obszar Chronionego Krajobrazu Doliny Górnej Drwęcy
IUCN Not AssignedProtected Landscape Area
2.55 km² overlap
Rzeka Pasłęka
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.28 km² overlap
9 more protected areassorted by overlap area
Nature Reserve
1.17 km² overlap
Bagno Nadrowskie
IUCN IVNature Reserve
1.06 km² overlap
Dolina Drwęcy
IUCN Not ReportedSite of Community Importance (Habitats Directive)
0.82 km² overlap
Dolina Pasłęki
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.59 km² overlap
Jezioro Orłowo Małe
IUCN IVNature Reserve
0.15 km² overlap
Nature Reserve
0.10 km² overlap
Mszar
IUCN IVNature Reserve
0.05 km² overlap
Redykajny
IUCN IVNature Reserve
0.02 km² overlap
Lasów Taborskich
IUCN Not AssignedProtected Landscape Area
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 969 distinct species · 28 614 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 Łyna : 28 espèces reliées par 92 interactions GloBI sur 5 types (connectance 15.5%, 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°
7,1°C
Annual rain
639mm
Moisture idx (CMI)
-0,08
Runoff
269mm/an
PET
692mm
AET
515mm
Mean slope
2,0°
Water table
166cm
Forest
55%
Crops
23%
Urban
6%
Protected
4%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)