HydroBASINS lev08 watershed · #1080035090
Bassin · #1080035090
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 4 administrative regions : Chake, Micheweni, Mkoani, Wete
Sub-basin area
1 205,4km²
Upstream area
1 205,4km²
Discharge
4,16m³/s
Mean elev.
20m
Administrative coverage
4 dept-equivalent regions (GADM L2)
- 305.4 km²25.5% of basin
- 268.4 km²22.4% of basin
- Micheweni255.1 km²21.3% of basin
- 225.6 km²18.8% of basin
5 intersecting protected areas
Pemba Channel Conservation Area
IUCN Not ReportedConservation Area
222.95 km² overlap
Ngezi-Vumawimbi
IUCN Not ReportedNature Reserve
19.19 km² overlap
Misali Island
IUCN VIConservation Area
3.29 km² overlap
Ras Kiuyu
IUCN Not ReportedForest Reserve
2.76 km² overlap
Msitu Mkuu
IUCN Not ReportedForest Reserve
1.85 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 109 distinct species · 12 234 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 · #1080035090 : 25 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 38 interactions GloBI sur 5 types (connectance 8.7%, filtre Serrano α=0.2). 5 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°
25,7°C
Annual rain
1 605mm
Moisture idx (CMI)
0,03
Runoff
327mm/an
PET
1 555mm
AET
1 081mm
Mean slope
1,4°
Water table
114cm
Forest
100%
Crops
0%
Urban
21%
Protected
20%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)