HydroBASINS lev08 watershed · #2080544450
Bassin de Dunărea - Дунай
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 9 administrative regions across 2 countries : Ceatalchioi, Frecatei, Hamcearca, Isaccea, Izma‹l's'ka +4
Sub-basin area
563,7km²
Upstream area
777 903,7km²
Discharge
6 750,82m³/s
Mean elev.
39m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Cahul958 km²
- Bassin de Dunărea - Дунай564 km²
9 dept-equivalent regions (GADM L2)
- 178.7 km²31.6% of basin
- 121.4 km²21.5% of basin
- 83.5 km²14.8% of basin
- 62.8 km²11.1% of basin
- CeatalchioiTulcea · Romania40.5 km²7.2% of basin
- 36.1 km²6.4% of basin
- 27.5 km²4.9% of basin
- 13.2 km²2.3% of basin
1 moreFull L2 list
- Hamcearca1.1 km² · 0.2%
14 intersecting protected areas
Danube Delta
IUCN Not ReportedWetland of International Importance (Ramsar Site)
192.63 km² overlap
Delta Dunării și Complexul Razim - Sinoie
IUCN Not ReportedSpecial Protection Area (Birds Directive)
157.83 km² overlap
Delta Dunării
IUCN Not ReportedSite of Community Importance (Habitats Directive)
145.59 km² overlap
Podișul Nord Dobrogean
IUCN Not ReportedSite of Community Importance (Habitats Directive)
39.61 km² overlap
Măcin - Niculițel
IUCN Not ReportedSpecial Protection Area (Birds Directive)
31.58 km² overlap
Systema Dunaiskykh Ozer
IUCN Not ReportedEmerald Network
25.93 km² overlap
Kartal Lake
IUCN VIWetland of International Importance (Ramsar Site)
21.42 km² overlap
Ozero Kartal
IUCN Not ReportedZakaznyk
18.94 km² overlap
Kugurlui Lake
IUCN VIWetland of International Importance (Ramsar Site)
7.32 km² overlap
5 more protected areassorted by overlap area
Lacul Rotundu
IUCN Not AssignedNot Assigned
2.49 km² overlap
Dealul Sarica
IUCN IVNature reserve
1.05 km² overlap
Pădurea Niculițel
IUCN Not AssignedNot Assigned
0.40 km² overlap
Mânăstirea Cocoș
IUCN IVNature reserve
0.06 km² overlap
Dealul Mândrești
IUCN IVNature reserve
0.04 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
620 distinct species · 5 085 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 Dunărea - Дунай : 25 espèces reliées par 61 interactions GloBI sur 3 types (connectance 10.3%, filtre Serrano α=0.2). 10 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°
11,0°C
Annual rain
451mm
Moisture idx (CMI)
-0,51
Runoff
75mm/an
PET
927mm
AET
389mm
Mean slope
1,9°
Water table
277cm
Forest
8%
Crops
58%
Urban
2%
Protected
25%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)