HydroBASINS lev08 watershed · #7080039140
Bassin de Swains 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 : Essex, Rockingham
Sub-basin area
161,9km²
Upstream area
161,9km²
Discharge
4,1m³/s
Mean elev.
17m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 144.1 km²88.8% of basin
- 4.7 km²2.9% of basin
30 intersecting protected areas
Odiorne Point State Park
IUCN IVMarine Protected Area
1.37 km² overlap
Hampton Salt Marsh
IUCN VConservation Area
1.26 km² overlap
Marine Protected Area
1.06 km² overlap
Hampton Beach State Park
IUCN IVMarine Protected Area
0.92 km² overlap
Reserve Program
0.76 km² overlap
Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), Rockingham, NH
IUCN Not AssignedConservation Easement
0.62 km² overlap
Audubon
IUCN VPreserve
0.57 km² overlap
Marine Protected Area
0.39 km² overlap
Petit Manan
IUCN IVNational Wildlife Refuge
0.39 km² overlap
21 more protected areassorted by overlap area
Awcomin Marsh
IUCN VPCL
0.34 km² overlap
Marine Protected Area
0.26 km² overlap
Wildlife Preserves, Inc.
IUCN VPreserve
0.22 km² overlap
Pond
0.22 km² overlap
Boeis
IUCN VWildlife Preserve
0.21 km² overlap
Private Conservation
0.21 km² overlap
Seabrook Dunes and
IUCN IIIBeach
0.20 km² overlap
Forest
0.19 km² overlap
Ham
IUCN VConservation Easement
0.18 km² overlap
Gra
IUCN Not AssignedConservation Easement
0.15 km² overlap
Local Conservation Area
0.13 km² overlap
Chase Lot
IUCN VConservation Easement
0.13 km² overlap
Ol Adam's Camp Land and
IUCN VIForest
0.12 km² overlap
Brookside
IUCN VWildlife Sanctuary
0.12 km² overlap
Massacre Marsh
IUCN VPCL
0.10 km² overlap
Varrel Woods
IUCN VLocal Conservation Area
0.10 km² overlap
Seacoast, Nh (Rye)
IUCN VEnvironmental System
0.10 km² overlap
Environmental System
0.09 km² overlap
Lamprey
IUCN VEasement
0.09 km² overlap
PCL
0.08 km² overlap
Private Conservation
0.07 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 850 distinct species · 807 452 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 43 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 Swains Creek : 31 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 102 interactions GloBI sur 3 types (connectance 11.3%, filtre Serrano α=0.2). 12 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°
8,7°C
Annual rain
1 143mm
Moisture idx (CMI)
0,17
Runoff
816mm/an
PET
943mm
AET
735mm
Mean slope
1,1°
Water table
71cm
Forest
76%
Crops
5%
Urban
28%
Protected
3%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)