HydroBASINS lev08 watershed · #7080040900
Bassin de Choptank 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 4 administrative regions : Caroline, Kent, Queen Anne's, Talbot
Sub-basin area
1 214,5km²
Upstream area
1 214,6km²
Discharge
23,55m³/s
Mean elev.
17m
Administrative coverage
4 dept-equivalent regions (GADM L2)
- 600.5 km²49.4% of basin
- Kent244.8 km²20.1% of basin
- 197.4 km²16.2% of basin
- Talbot163.8 km²13.5% of basin
20 intersecting protected areas
DNR
IUCN Not AssignedConservation Easement
6.00 km² overlap
Jackson Lane Site Fee
IUCN VPrivate Conservation Land
2.53 km² overlap
Choptank Wetlands Fee
IUCN VWetlands
1.86 km² overlap
Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), Caroline, MD
IUCN Not AssignedConservation Easement
1.27 km² overlap
Baltimore Corner Fee
IUCN VPrivate Conservation Land
1.20 km² overlap
Reserve Program
1.19 km² overlap
Maryland Environmental Trust Easement #60
IUCN Not AssignedEasement
0.76 km² overlap
Reserve Program
0.73 km² overlap
Hollingsworth Pond
IUCN VHeritage Conservation
0.67 km² overlap
11 more protected areassorted by overlap area
Reserve Program
0.65 km² overlap
Bridgetown Ponds
IUCN VHeritage Conservation
0.58 km² overlap
Maryland Environmental Trust Easement #74
IUCN Not AssignedEasement
0.50 km² overlap
Reserve Program
0.41 km² overlap
Wetlands Reserve Program (WRP)
IUCN Not AssignedReserve Program
0.41 km² overlap
PCL
0.25 km² overlap
Reserve Program
0.11 km² overlap
Choptank Wetlands
IUCN VWetlands
0.08 km² overlap
Conservation Easement
0.07 km² overlap
Preserve
0.04 km² overlap
Easement
IUCN Not AssignedConservation Easement
0.04 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 954 distinct species · 352 065 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Choptank River : 28 espèces reliées par 76 interactions GloBI sur 3 types (connectance 10.8%, 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°
12,8°C
Annual rain
1 100mm
Moisture idx (CMI)
-0,02
Runoff
557mm/an
PET
1 117mm
AET
848mm
Mean slope
0,5°
Water table
16cm
Forest
66%
Crops
49%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)