HydroBASINS lev08 watershed · #7080016200
Bassin de Terrell Creek
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 2 administrative regions across 2 countries : Greater Vancouver, Whatcom
Sub-basin area
379,8km²
Upstream area
379,8km²
Discharge
11,57m³/s
Mean elev.
45m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 287.4 km²75.4% of basin
- 60.6 km²15.9% of basin
17 intersecting protected areas
San Juan Islands
IUCN VNational Monument
32.97 km² overlap
Whatcom
IUCN VWildlife Area Complex
6.52 km² overlap
Fraser River Delta
IUCN Not ReportedWetland of International Importance (Ramsar Site)
4.12 km² overlap
Wildlife Management Area
3.77 km² overlap
Cherry Point Aquatic Reserve
IUCN IVMarine Protected Area
2.71 km² overlap
Lummi Island
IUCN VNatural Resources Conservation Area
2.67 km² overlap
Wildlife Management Area
0.33 km² overlap
Fenton
IUCN VNature Reserve
0.31 km² overlap
Point Whitehorn
IUCN VMarine Reserve
0.22 km² overlap
8 more protected areassorted by overlap area
Mud Bay
IUCN IVPrivately Owned Conservation Area
0.22 km² overlap
Protected Area
0.19 km² overlap
Kelsey
IUCN VLocal Land Trust
0.08 km² overlap
PCON157
IUCN VLocal Land Trust
0.07 km² overlap
PEACE ARCH PARK
IUCN Not ReportedA - Park
0.07 km² overlap
Reserve Program
0.05 km² overlap
Eames Tidelands
IUCN VITidelands
0.03 km² overlap
Western Foundation
IUCN VLocal Land Trust
0.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 124 distinct species · 315 074 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 de Terrell Creek : 22 espèces reliées par 60 interactions GloBI sur 3 types (connectance 12.9%, filtre Serrano α=0.2). 9 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°
9,5°C
Annual rain
996mm
Moisture idx (CMI)
0,21
Runoff
993mm/an
PET
778mm
AET
561mm
Mean slope
2,8°
Water table
208cm
Forest
36%
Crops
27%
Urban
10%
Protected
13%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)