HydroBASINS lev08 watershed · #7080040680
Bassin de Manokin 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 3 administrative regions : Accomack, Somerset, Worcester
Sub-basin area
695,3km²
Upstream area
695,3km²
Discharge
0,28m³/s
Mean elev.
4m
Administrative coverage
3 dept-equivalent regions (GADM L2)
- Somerset630.2 km²90.6% of basin
- 1.8 km²0.3% of basin
- 0.2 km²0.0% of basin
14 intersecting protected areas
DNR
IUCN Not AssignedConservation Easement
22.11 km² overlap
Chesapeake Bay Estuarine Complex
IUCN Not ReportedWetland of International Importance (Ramsar Site)
22.09 km² overlap
Chesapeake Bay National Estuarine Research Reserve - Maryland National Estuarine Research Reserve
IUCN IVMarine Protected Area
13.34 km² overlap
Reserve Program
12.95 km² overlap
Cedar Island
IUCN VWildlife Management Area
11.04 km² overlap
Maryland Environmental Trust Easement #123
IUCN Not AssignedEasement
0.79 km² overlap
Princess Anne Marshes
IUCN VEasement
0.63 km² overlap
East Creek
IUCN VPCL
0.62 km² overlap
Maryland Environmental Trust Easement #120
IUCN Not AssignedEasement
0.59 km² overlap
5 more protected areassorted by overlap area
Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), Somerset, MD
IUCN VConservation Easement
0.25 km² overlap
Reserve Program
0.24 km² overlap
Maryland Environmental Trust Easement #42
IUCN Not AssignedEasement
0.21 km² overlap
Reserve Program
0.17 km² overlap
Maryland Environmental Trust Easement #12
IUCN Not AssignedEasement
0.09 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 791 distinct species · 171 591 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Manokin River : 21 espèces reliées par 83 interactions GloBI sur 3 types (connectance 13.9%, filtre Serrano α=0.2). 14 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°
13,7°C
Annual rain
1 047mm
Moisture idx (CMI)
-0,04
Runoff
492mm/an
PET
1 087mm
AET
820mm
Mean slope
0,5°
Water table
12cm
Forest
87%
Crops
35%
Urban
2%
Protected
9%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)