HydroBASINS lev08 watershed · #1080965260
Bassin de Saint John River
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 6 administrative regions : District # 3, Jorquelleh, Kokoyah, Morweh, Panta-Kpa +1
Sub-basin area
2 256,2km²
Upstream area
11 366,2km²
Discharge
386,14m³/s
Mean elev.
236m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #10809563201050 km²
- Bassin de Saint John River393 km²
6 dept-equivalent regions (GADM L2)
- 1009.4 km²44.9% of basin
- 666.5 km²29.7% of basin
- 264.9 km²11.8% of basin
- 193.8 km²8.6% of basin
- 62.9 km²2.8% of basin
- 48.9 km²2.2% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
362 distinct species · 1 369 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 23 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 Saint John River : 21 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 17 interactions GloBI sur 3 types (connectance 6.7%, filtre Serrano α=0.2). 2 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°
25,3°C
Annual rain
2 183mm
Moisture idx (CMI)
0,17
Runoff
1 374mm/an
PET
1 810mm
AET
1 429mm
Mean slope
3,1°
Water table
85cm
Forest
14%
Crops
5%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)