Ruisseau· 20 segments

Dunărea (Brațul Sfântu Gheorghe)

Crosses 7 administrative regions : Crisan, Mahmudia, Maliuc, Murighiol, Nufaru +2

ruisseau

Total length

110km

Max discharge

0,5m³/s

Max Strahler

Segments matched

River geography7 admin regions · 0 communes

Parent watershed

hybas-20800085002492 km²

7 administrative regions crossed (GADM L2)

Sfantu Gheorghe
Tulcea · Romania
40.3 km
in this dpt
Murighiol
Tulcea · Romania
34.9 km
in this dpt
Crisan
Tulcea · Romania
24.6 km
in this dpt
Mahmudia
Tulcea · Romania
18.8 km
in this dpt
Nufaru
Tulcea · Romania
14.0 km
in this dpt
Tulcea
Tulcea · Romania
12.6 km
in this dpt
Maliuc
Tulcea · Romania
0.0 km
in this dpt

10 intersecting protected areas

Danube Delta
IUCN Not Reported
Wetland of International Importance (Ramsar Site)
Delta Dunării și Complexul Razim - Sinoie
IUCN Not Reported
Special Protection Area (Birds Directive)
Delta Dunării
IUCN Not Reported
Site of Community Importance (Habitats Directive)
Danube Delta
IUCN Not Applicable
World Heritage Site (natural or mixed)
Complexul Sacalin Zătoane
IUCN Not Assigned
Not Assigned
Beștepe - Mahmudia
IUCN Not Reported
Special Protection Area (Birds Directive)
Dealurile Beștepe
IUCN IV
Nature reserve
Lacul Belciug
IUCN Not Assigned
Not Assigned
Sărăturile Murighiol
IUCN Not Assigned
Not Assigned

1 more protected areassorted by area

Arinișul Erenciuc
IUCN Not Assigned
Not Assigned

1 page = 1 named river (aggregation of 20 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

491 distinct species · 6 281 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 36 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 Dunărea (Brațul Sfântu Gheorghe) : 30 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 69 interactions GloBI sur 3 types (connectance 9.8%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.098

Patrimoniales

Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydrology (HydroRIVERS v10)