HydroBASINS lev08 watershed · #2080331470
Bassin de Marycha
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 6 administrative regions across 3 countries : Augustów, Hrodna, Lazdijų, Marijampolės, Sejny +1
Sub-basin area
654,9km²
Upstream area
654,9km²
Discharge
4,48m³/s
Mean elev.
143m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
6 dept-equivalent regions (GADM L2)
- 449.0 km²68.3% of basin
- 81.8 km²12.4% of basin
- 61.7 km²9.4% of basin
- 56.5 km²8.6% of basin
- 5.4 km²0.8% of basin
- 3.2 km²0.5% of basin
27 intersecting protected areas
Pojezierze Sejneńskie
IUCN Not AssignedProtected Landscape Area
206.57 km² overlap
Puszcza Augustowska
IUCN Not ReportedSpecial Protection Area (Birds Directive)
173.27 km² overlap
Ostoja Augustowska
IUCN Not ReportedSite of Community Importance (Habitats Directive)
138.42 km² overlap
Sopotskinskiy
IUCN IVNature Sanctuary or Partial Reserve
80.12 km² overlap
Pojezierze Sejneńskie
IUCN Not ReportedSite of Community Importance (Habitats Directive)
65.84 km² overlap
Pojezierze Północnej Suwalszczyzny
IUCN Not AssignedProtected Landscape Area
18.61 km² overlap
Puszcza i Jeziora Augustowskie
IUCN Not AssignedProtected Landscape Area
18.00 km² overlap
Pertako miškas
IUCN Not ReportedSpecial Protection Area (Birds Directive)
5.17 km² overlap
Biosphere polygon
5.17 km² overlap
18 more protected areassorted by overlap area
Kukle
IUCN IVNature Reserve
3.43 km² overlap
Pertako apylinkės
IUCN Not ReportedSite of Community Importance (Habitats Directive)
1.75 km² overlap
Nature Reserve
1.57 km² overlap
Krakinio pelkė
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.57 km² overlap
Łempis
IUCN IVNature Reserve
1.32 km² overlap
Nature Reserve
1.22 km² overlap
Ostoja Wigierska
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.11 km² overlap
Wiłkokuk
IUCN Not AssignedNature Reserve
1.04 km² overlap
Wigry National Park
IUCN IIWetland of International Importance (Ramsar Site)
1.04 km² overlap
Wigierski Park Narodowy
IUCN VNational Park
1.04 km² overlap
Kalvarijos apylinkės
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.70 km² overlap
Biosphere polygon
0.70 km² overlap
Ostoja bobrów Marycha
IUCN IVNature Reserve
0.56 km² overlap
Kauknorio apylinkės
IUCN Not ReportedSite of Community Importance (Habitats Directive)
0.45 km² overlap
Pomorze
IUCN IVNature Reserve
0.21 km² overlap
Nature Reserve
0.09 km² overlap
Tobolinka
IUCN IVNature Reserve
0.05 km² overlap
Bobruczek
IUCN IVNature Reserve
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 732 distinct species · 12 645 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).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Marycha : 26 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 54 interactions GloBI sur 4 types (connectance 10.9%, filtre Serrano α=0.2). 6 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°
6,3°C
Annual rain
590mm
Moisture idx (CMI)
-0,14
Runoff
208mm/an
PET
685mm
AET
496mm
Mean slope
1,1°
Water table
78cm
Forest
46%
Crops
39%
Urban
1%
Protected
51%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)