HydroBASINS lev08 watershed · #5080080190
Bassin de la Ouaième
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 27 administrative regions : Boulouparis, Bourail, Canala, Dumbéa, Farino +22
Sub-basin area
7 256,5km²
Upstream area
7 256,5km²
Discharge
7,72m³/s
Mean elev.
344m
Administrative coverage
27 dept-equivalent regions (GADM L2)
- 1186.5 km²16.4% of basin
- 919.6 km²12.7% of basin
- 904.8 km²12.5% of basin
- 900.4 km²12.4% of basin
- 673.8 km²9.3% of basin
- 641.9 km²8.9% of basin
- 364.6 km²5.0% of basin
- 347.8 km²4.8% of basin
19 moreFull L2 list
- Pouébo230.2 km² · 3.2%
- Touho221.4 km² · 3.1%
- Boulouparis98.5 km² · 1.4%
- Mont-Dore96.2 km² · 1.3%
- Païta86.3 km² · 1.2%
- Poya (North)65.0 km² · 0.9%
- Voh59.3 km² · 0.8%
- Sarraméa55.6 km² · 0.8%
- Ouégoa51.0 km² · 0.7%
- Bourail36.4 km² · 0.5%
- La Foa33.1 km² · 0.5%
- Pouembout17.7 km² · 0.2%
- Moindou11.2 km² · 0.2%
- Kaala-Gomen9.1 km² · 0.1%
- Dumbéa7.8 km² · 0.1%
- Poum6.4 km² · 0.1%
- Poya (South)4.4 km² · 0.1%
- Koné1.4 km² · 0.0%
- Farino0.9 km² · 0.0%
30 intersecting protected areas
Parc de la Côte Oubliée
IUCN Not ReportedNational Park
858.99 km² overlap
Wetland of International Importance (Ramsar Site)
420.34 km² overlap
Parc provincial de la Rivière bleue
IUCN Not ReportedNational Park
214.46 km² overlap
Territorial Park
79.75 km² overlap
Lagoons of New Caledonia: Reef Diversity and Associated Ecosystems
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
78.01 km² overlap
Massif du Kouakoué
IUCN Not ReportedNature reserve
74.81 km² overlap
Special Fauna Reserve
67.95 km² overlap
Mont Panié
IUCN IVSpecial Botanical Reserve
55.63 km² overlap
Haute Yaté
IUCN Not ReportedNature reserve
52.59 km² overlap
21 more protected areassorted by overlap area
Haute Pourina
IUCN Not ReportedNature reserve
44.63 km² overlap
Parc de la Zone Côtière Ouest
IUCN Not ReportedNational Park
40.51 km² overlap
Aoupiné Fauna Reserve
IUCN IVSpecial Fauna Reserve
38.71 km² overlap
Parc du Grand Lagon Sud
IUCN Not ReportedNational Park
13.99 km² overlap
Mont Humboldt
IUCN IVSpecial Botanical Reserve
12.08 km² overlap
Foret de Sailles
IUCN IVSpecial Botanical Reserve
11.22 km² overlap
Forêt de Saille
IUCN Not ReportedNature reserve
10.99 km² overlap
Special Reserve Cap N'Dua
IUCN IVSpecial Botanical Reserve
10.24 km² overlap
Mont Humboldt
IUCN Not ReportedNature reserve
8.45 km² overlap
Cap N'dua
IUCN Not ReportedNature reserve
8.09 km² overlap
Pic du Pin
IUCN Not ReportedNature reserve
6.02 km² overlap
Fausse Yate
IUCN IVSpecial Botanical Reserve
5.59 km² overlap
Barrage de Yaté
IUCN Not ReportedNature reserve
5.47 km² overlap
Yate Barrage
IUCN IVSpecial Botanical Reserve
5.00 km² overlap
Parc des Grandes Fougères
IUCN Not ReportedNational Park
4.55 km² overlap
Pic Ningua
IUCN IVSpecial Botanical Reserve
4.32 km² overlap
Special Reserve Forêt Nord
IUCN IVSpecial Botanical Reserve
4.28 km² overlap
Forêt Nord
IUCN Not ReportedNature reserve
4.19 km² overlap
Chutes de la Madeleine
IUCN Not ReportedNature reserve
3.93 km² overlap
Fausse Yaté
IUCN Not ReportedNature reserve
3.88 km² overlap
Pic Ningua
IUCN Not ReportedNature reserve
3.57 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
7 736 distinct species · 97 018 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 19 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 la Ouaième : 13 espèces reliées par 17 interactions GloBI sur 2 types (connectance 9.9%, 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°
21,3°C
Annual rain
1 877mm
Moisture idx (CMI)
0,33
Runoff
751mm/an
PET
1 236mm
AET
1 152mm
Mean slope
14,4°
Water table
542cm
Forest
27%
Crops
0%
Urban
0%
Protected
6%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)