HydroBASINS lev08 watershed · #7080039920
Bassin de Passaic 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 10 administrative regions : Bergen, Essex, Hudson, Morris, Orange +5
Sub-basin area
2 445,9km²
Upstream area
2 445,9km²
Discharge
50,52m³/s
Mean elev.
167m
Administrative coverage
10 dept-equivalent regions (GADM L2)
- Morris822.9 km²33.6% of basin
- 486.6 km²19.9% of basin
- 322.5 km²13.2% of basin
- OrangeNew York · United States244.3 km²10.0% of basin
- Essex232.3 km²9.5% of basin
- RocklandNew York · United States142.4 km²5.8% of basin
- Somerset93.9 km²3.8% of basin
- 55.8 km²2.3% of basin
2 moreFull L2 list
- Union30.2 km² · 1.2%
- Hudson18.0 km² · 0.7%
30 intersecting protected areas
Great Swamp
IUCN IVNational Wildlife Refuge
31.81 km² overlap
Norvin Green
IUCN VState Forest
21.20 km² overlap
Wildcat Ridge
IUCN VWildlife Management Area
18.47 km² overlap
Ramapo Mountain
IUCN VState Forest
16.46 km² overlap
Great Swamp
IUCN IbWilderness Area
14.61 km² overlap
Ramapo Valley County
IUCN VReservation
12.14 km² overlap
Rockaway River
IUCN VWildlife Management Area
7.83 km² overlap
Great Piece Meadows
IUCN VPreserve
7.45 km² overlap
Troy Meadows
IUCN VPreserve
7.36 km² overlap
21 more protected areassorted by overlap area
Berkshire Valley
IUCN VWildlife Management Area
6.71 km² overlap
Recreation
6.46 km² overlap
East Orange Water
IUCN VReserve
5.72 km² overlap
Abram S. Hewitt
IUCN VState Forest
5.61 km² overlap
Sterling
IUCN VForest
5.18 km² overlap
High Mountain
IUCN VPrivate Conservation Land
4.90 km² overlap
Campgaw Mountain
IUCN VReservation
4.85 km² overlap
Sparta Mountain
IUCN VWildlife Management Area
4.78 km² overlap
Buck Mountain
IUCN VPreserve
3.71 km² overlap
Mahlon Dickerson
IUCN VReservation
3.14 km² overlap
Wrightman's Plateau 1
IUCN VLocal Conservation Area
2.27 km² overlap
Sparta Mountain
IUCN VSanctuary
1.93 km² overlap
Kearny Marsh
IUCN VEstuary or Marsh
1.76 km² overlap
Jonathon Woods
IUCN VPreserve
1.72 km² overlap
Eagle Rock
IUCN VReservation
1.63 km² overlap
Ramapo Mountain
IUCN VPreserve
1.25 km² overlap
Wildcat Ridge
IUCN VConservation Area
1.19 km² overlap
Mountain Top
IUCN VForest
1.05 km² overlap
Loantaka Brook
IUCN VReservation
1.00 km² overlap
Environmental System
0.96 km² overlap
Preserve
IUCN VPreserve
0.89 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
8 922 distinct species · 3 849 994 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 Passaic River : 28 espèces reliées par 81 interactions GloBI sur 4 types (connectance 10.9%, filtre Serrano α=0.2). 11 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°
10,0°C
Annual rain
1 245mm
Moisture idx (CMI)
0,19
Runoff
706mm/an
PET
1 012mm
AET
849mm
Mean slope
4,0°
Water table
260cm
Forest
64%
Crops
0%
Urban
53%
Protected
15%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)