HydroBASINS lev08 watershed · #7080713340
Bassin de Main Canal
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 : Issaquena, Sharkey, Warren, Washington
Sub-basin area
1 253km²
Upstream area
1 253,4km²
Discharge
31,32m³/s
Mean elev.
33m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- Washington628.1 km²50.2% of basin
- 540.7 km²43.2% of basin
- 50.4 km²4.0% of basin
- Warren33.1 km²2.6% of basin
20 intersecting protected areas
Yazoo
IUCN IVNational Wildlife Refuge
52.78 km² overlap
Reserve Program
41.74 km² overlap
Mahannah
IUCN VState Conservation Area
15.02 km² overlap
Howard Miller
IUCN VState Conservation Area
7.93 km² overlap
Reserve Program
6.16 km² overlap
Leroy Percy
IUCN VState Conservation Area
5.04 km² overlap
State Conservation Area
4.13 km² overlap
Muscadine Farms
IUCN VState Conservation Area
3.08 km² overlap
Muscadine Driftwood
IUCN VState Conservation Area
2.87 km² overlap
11 more protected areassorted by overlap area
Restricted Area
IUCN VRestricted Area
2.25 km² overlap
Howard Miller
IUCN VWildlife Management Area
2.00 km² overlap
Watershed Protection
1.63 km² overlap
Theodore Roosevelt
IUCN IVNational Wildlife Refuge
0.97 km² overlap
State Conservation Area
0.94 km² overlap
Wetlands Reserve Program (WRP)
IUCN Not AssignedReserve Program
0.87 km² overlap
Reserve Program
0.81 km² overlap
Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), Washington, MS
IUCN VConservation Easement
0.30 km² overlap
Reserve Program
0.23 km² overlap
State Conservation Area
0.17 km² overlap
Private
IUCN VPRIVATE
0.16 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
954 distinct species · 15 921 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 40 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 Main Canal : 31 espèces reliées par 90 interactions GloBI sur 4 types (connectance 11.0%, 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°
17,5°C
Annual rain
1 376mm
Moisture idx (CMI)
0,01
Runoff
798mm/an
PET
1 359mm
AET
1 018mm
Mean slope
0,2°
Water table
10cm
Forest
21%
Crops
54%
Urban
1%
Protected
4%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)