HydroBASINS lev08 watershed · #2080557810
Bassin de Cerna
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 25 administrative regions : Baia De Arama, Baile Herculane, Balta, Calugareni, Ciresu +20
Sub-basin area
1 389,7km²
Upstream area
1 389,7km²
Discharge
8,53m³/s
Mean elev.
799m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
25 dept-equivalent regions (GADM L2)
- 254.7 km²18.3% of basin
- 231.5 km²16.6% of basin
- 202.0 km²14.5% of basin
- 117.7 km²8.5% of basin
- 116.7 km²8.4% of basin
- 91.9 km²6.6% of basin
- 54.1 km²3.9% of basin
- 51.2 km²3.7% of basin
17 moreFull L2 list
- Domasnea43.8 km² · 3.1%
- Cornea43.5 km² · 3.1%
- Baile Herculane41.8 km² · 3.0%
- Obarsia-closani30.2 km² · 2.2%
- Tismana28.2 km² · 2.0%
- Orsova24.8 km² · 1.8%
- Isverna22.3 km² · 1.6%
- Balta16.8 km² · 1.2%
- Teregova10.6 km² · 0.8%
- Zavoi5.6 km² · 0.4%
- Prigor2.5 km² · 0.2%
- Rau De Mori1.3 km² · 0.1%
- Eselnita0.8 km² · 0.1%
- Podeni0.7 km² · 0.0%
- Ilovita0.2 km² · 0.0%
- Baia De Arama0.0 km² · 0.0%
- Ciresu0.0 km² · 0.0%
30 intersecting protected areas
Domogled - Valea Cernei
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
537.45 km² overlap
Domogled - Valea Cernei
IUCN Not ReportedSpecial Protection Area (Birds Directive)
536.60 km² overlap
National park
535.22 km² overlap
Ancient and Primeval Beech Forests of the Carpathians and Other Regions of Europe
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
95.57 km² overlap
Coronini - Bedina
IUCN IVNature reserve
38.28 km² overlap
Domogled
IUCN IVNature reserve
34.44 km² overlap
Natural park
33.95 km² overlap
Munții Almăjului - Locvei
IUCN Not ReportedSpecial Protection Area (Birds Directive)
29.93 km² overlap
Porțile de Fier
IUCN Not ReportedSite of Community Importance (Habitats Directive)
27.62 km² overlap
21 more protected areassorted by overlap area
Belareca
IUCN IVNature reserve
16.98 km² overlap
Iauna - Craiova
IUCN IVNature reserve
16.64 km² overlap
Retezat
IUCN Not ReportedSite of Community Importance (Habitats Directive)
7.52 km² overlap
Ciucevele Cernei
IUCN IVNature reserve
6.50 km² overlap
Iardașița
IUCN IVNature reserve
5.26 km² overlap
Valea Țesna
IUCN IVNature reserve
4.89 km² overlap
Vârful lui Stan
IUCN IVNature reserve
4.81 km² overlap
Cursul Dunării - Baziaș - Porțile de Fier
IUCN Not ReportedSpecial Protection Area (Birds Directive)
4.02 km² overlap
Munții Retezat
IUCN Not ReportedSpecial Protection Area (Birds Directive)
2.64 km² overlap
Parcul Național Retezat
IUCN IINational park
2.64 km² overlap
Munții Țarcu
IUCN Not ReportedSite of Community Importance (Habitats Directive)
2.23 km² overlap
Platoul Mehedinți
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.85 km² overlap
Natural park
1.85 km² overlap
Ravena Crouri
IUCN Not AssignedNot Assigned
1.38 km² overlap
Valea Greațca
IUCN Not AssignedNot Assigned
0.99 km² overlap
Cheile Globului
IUCN Not AssignedNot Assigned
0.87 km² overlap
Nordul Gorjului de Vest
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.73 km² overlap
Cheile Corcoaiei
IUCN IVNature reserve
0.31 km² overlap
Peștera lui Ion Bârzoni
IUCN IVNature reserve
0.25 km² overlap
Izvoarele Nerei
IUCN Not AssignedNot Assigned
0.11 km² overlap
National park
0.11 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 933 distinct species · 8 707 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 16 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 Cerna : 9 espèces reliées par 43 interactions GloBI sur 5 types (connectance 35.8%, 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°
7,7°C
Annual rain
813mm
Moisture idx (CMI)
0,02
Runoff
190mm/an
PET
791mm
AET
632mm
Mean slope
16,1°
Water table
606cm
Forest
74%
Crops
9%
Urban
1%
Protected
42%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)