HydroBASINS lev08 watershed · #2080340110

Bassin de Ełk

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 7 administrative regions : Ełk, Giżycko, Gołdap, Grajewo, Mońki +2

43% lakePfafstetter: 24248082

Sub-basin area

1 431,2km²

Upstream area

1 431,4km²

Discharge

9m³/s

Mean elev.

146m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Wissa1152 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

7 dept-equivalent regions (GADM L2)

Ełk
Warmińsko-Mazurskie · Poland
525.0 km²
36.5% of basin
Olecko
Warmińsko-Mazurskie · Poland
446.8 km²
31.1% of basin
Grajewo
Podlaskie · Poland
247.1 km²
17.2% of basin
Giżycko
Warmińsko-Mazurskie · Poland
193.7 km²
13.5% of basin
Gołdap
Warmińsko-Mazurskie · Poland
18.0 km²
1.2% of basin
Mońki
Podlaskie · Poland
6.5 km²
0.5% of basin
Pisz
Warmińsko-Mazurskie · Poland
0.4 km²
0.0% of basin

26 intersecting protected areas

Obszar Chronionego Krajobrazu Pojezierza Iławskiego - część A i B
IUCN Not Assigned
Protected Landscape Area
425.36 km² overlap
Obszar Chronionego Krajobrazu Pojezierza Ełckiego
IUCN Not Assigned
Protected Landscape Area
425.36 km² overlap
Puszczy Boreckiej
IUCN Not Assigned
Protected Landscape Area
173.42 km² overlap
Ostoja Borecka
IUCN Not Reported
Site of Community Importance (Habitats Directive)
151.77 km² overlap
Puszcza Borecka
IUCN Not Reported
Special Protection Area (Birds Directive)
142.78 km² overlap
Ostoja Biebrzańska
IUCN Not Reported
Special Protection Area (Birds Directive)
107.23 km² overlap
Dolina Biebrzy
IUCN Not Reported
Site of Community Importance (Habitats Directive)
58.72 km² overlap
Jezior Oleckich
IUCN Not Assigned
Protected Landscape Area
55.36 km² overlap
Wzgórz Szeskich
IUCN Not Assigned
Protected Landscape Area
37.50 km² overlap

17 more protected areassorted by overlap area

Gawlik
IUCN Not Assigned
Protected Landscape Area
9.12 km² overlap
Wzgórz Dybowskich
IUCN Not Assigned
Protected Landscape Area
8.29 km² overlap
Mazury
IUCN IV
Nature Reserve
3.89 km² overlap
Borki
IUCN IV
Nature Reserve
3.38 km² overlap
Jezioro Woszczelskie
IUCN Not Reported
Site of Community Importance (Habitats Directive)
3.14 km² overlap
Jezior Orzyskich
IUCN Not Assigned
Protected Landscape Area
2.94 km² overlap
Biebrzanski National Park
IUCN II
Wetland of International Importance (Ramsar Site)
2.61 km² overlap
Biebrzański Park Narodowy
IUCN Not Assigned
National Park
2.61 km² overlap
Bartosze
IUCN IV
Nature Reserve
1.90 km² overlap
Murawy na Pojezierzu Ełckim
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
0.77 km² overlap
Doliny Legi
IUCN Not Assigned
Protected Landscape Area
0.72 km² overlap
Sikory Juskie
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
0.71 km² overlap
Mokra Góra
IUCN Not Assigned
Nature Reserve
0.60 km² overlap
Lipowy Jar
IUCN IV
Nature Reserve
0.50 km² overlap
Krainy Wielkich Jezior Mazurskich
IUCN Not Assigned
Protected Landscape Area
0.35 km² overlap
Cisowy Jar
IUCN IV
Nature Reserve
0.11 km² overlap
Wyspa lipowa na jeziorze Szwałk Wielki
IUCN IV
Nature Reserve
0.03 km² overlap

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

Species present

1 840 distinct species · 27 825 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 28 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 Ełk : 21 espèces reliées par 81 interactions GloBI sur 3 types (connectance 20.0%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.200

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°

6,6°C

Annual rain

623mm

Moisture idx (CMI)

-0,09

Runoff

206mm/an

PET

684mm

AET

505mm

Mean slope

1,3°

Water table

98cm

Forest

28%

Crops

35%

Urban

Protected

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