HydroBASINS lev08 watershed · #2080503290
Bassin de Someșul Mare
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 37 administrative regions : Bistrita, Borsa, Caianu Mic, Chiuza, Cosbuc +32
Sub-basin area
2 186km²
Upstream area
2 186km²
Discharge
27,06m³/s
Mean elev.
848m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
37 dept-equivalent regions (GADM L2)
- 238.5 km²10.9% of basin
- 187.2 km²8.5% of basin
- 152.8 km²7.0% of basin
- 140.9 km²6.4% of basin
- 120.9 km²5.5% of basin
- 115.5 km²5.3% of basin
- 115.2 km²5.3% of basin
- 112.0 km²5.1% of basin
29 moreFull L2 list
- Lunca Ilvei106.2 km² · 4.8%
- Rodna105.3 km² · 4.8%
- Nimigea De Jos96.4 km² · 4.4%
- Lesu90.9 km² · 4.1%
- Cosbuc74.5 km² · 3.4%
- Parva73.3 km² · 3.3%
- Tiha Bargaului66.7 km² · 3.0%
- Ilva Mare61.4 km² · 2.8%
- Ilva Mica58.9 km² · 2.7%
- Magura Ilvei57.3 km² · 2.6%
- Salva54.4 km² · 2.5%
- Rebra52.5 km² · 2.4%
- Nasaud43.7 km² · 2.0%
- Chiuza41.1 km² · 1.9%
- Dorna Candrenilor5.6 km² · 0.3%
- Sintereag4.2 km² · 0.2%
- Dumitra3.4 km² · 0.2%
- Livezile3.2 km² · 0.1%
- Caianu Mic2.5 km² · 0.1%
- Tarlisua1.8 km² · 0.1%
- Moisei1.1 km² · 0.1%
- Salistea De Sus0.7 km² · 0.0%
- Sacel0.7 km² · 0.0%
- Borsa0.7 km² · 0.0%
- Bistrita0.6 km² · 0.0%
- Josenii Bargaului0.5 km² · 0.0%
- Suciu De Sus0.4 km² · 0.0%
- Prundu Bargaului0.4 km² · 0.0%
- Dragomiresti0.3 km² · 0.0%
21 intersecting protected areas
Munții Rodnei
IUCN Not ReportedSpecial Protection Area (Birds Directive)
358.59 km² overlap
Munții Rodnei
IUCN Not ReportedSite of Community Importance (Habitats Directive)
291.12 km² overlap
National park
283.71 km² overlap
Larion
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
17.70 km² overlap
Izvoarele Mihăiesei
IUCN Not AssignedNot Assigned
4.16 km² overlap
Someșul Mare
IUCN Not ReportedSite of Community Importance (Habitats Directive)
4.13 km² overlap
Someșul Mare Superior
IUCN Not ReportedSite of Community Importance (Habitats Directive)
1.52 km² overlap
Valea Izei și Dealul Solovan
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1.48 km² overlap
Valea Izei și Dealul Solovan
IUCN Not ReportedSite of Community Importance (Habitats Directive)
1.48 km² overlap
12 more protected areassorted by overlap area
Peștera Tăușoare
IUCN Not AssignedNot Assigned
1.31 km² overlap
Peștera Tăușoare
IUCN Not ReportedSite of Community Importance (Habitats Directive)
1.31 km² overlap
Pietrosul Mare
IUCN Not AssignedNot Assigned
0.64 km² overlap
Crovul de la Larion
IUCN Not AssignedNot Assigned
0.31 km² overlap
Arcer - Țibleș - Bran
IUCN Not AssignedNot Assigned
0.28 km² overlap
Ineu Lala
IUCN Not AssignedNot Assigned
0.22 km² overlap
Poiana cu narcise de pe Șesul Mogoșenilor
IUCN Not AssignedNot Assigned
0.09 km² overlap
Poiana cu narcise de pe masivul Saca
IUCN Not AssignedNot Assigned
0.09 km² overlap
Piatra Rea
IUCN Not AssignedNot Assigned
0.07 km² overlap
Peștera din Valea Cobășelului
IUCN Not AssignedNot Assigned
0.06 km² overlap
Lacul Zagra
IUCN Not AssignedNot Assigned
0.02 km² overlap
Zavoaiele Borcutului
IUCN Not AssignedNot Assigned
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
874 distinct species · 3 575 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).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Someșul Mare : 19 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 52 interactions GloBI sur 6 types (connectance 12.8%, 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°
6,1°C
Annual rain
764mm
Moisture idx (CMI)
0,00
Runoff
414mm/an
PET
761mm
AET
615mm
Mean slope
16,2°
Water table
573cm
Forest
76%
Crops
8%
Urban
1%
Protected
13%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)