HydroBASINS lev08 watershed · #7080064840
Bassin de Carmans 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 1 administrative regions : Suffolk
Sub-basin area
207,8km²
Upstream area
207,8km²
Discharge
4,07m³/s
Mean elev.
37m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- SuffolkNew York · United States207.9 km²99.9% of basin
10 intersecting protected areas
Suffolk County Lands
IUCN VLocal Conservation Area
6.47 km² overlap
Wertheim
IUCN IVNational Wildlife Refuge
5.95 km² overlap
Marine Protected Area
5.94 km² overlap
Nature Preserve
0.44 km² overlap
Long Island Pine Barrens
IUCN VState Conservation Area
0.40 km² overlap
Brookhaven Town Lands
IUCN VLocal Conservation Area
0.32 km² overlap
Davis Sanctuary Site
IUCN VSanctuary
0.26 km² overlap
Long Island Pine Barrens
IUCN VState Unique Area
0.23 km² overlap
Unknown
IUCN VPark
0.00 km² overlap
1 more protected areassorted by overlap area
Suffolk County Lands
IUCN VState Conservation Area
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 877 distinct species · 37 843 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 48 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 Carmans River : 31 espèces reliées par 157 interactions GloBI sur 4 types (connectance 13.9%, filtre Serrano α=0.2). 17 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°
10,9°C
Annual rain
1 158mm
Moisture idx (CMI)
0,19
Runoff
794mm/an
PET
941mm
AET
776mm
Mean slope
0,8°
Water table
84cm
Forest
66%
Crops
2%
Urban
73%
Protected
7%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)