HydroBASINS lev08 watershed · #7080416340

Bassin de Penobscot 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 3 administrative regions : Hancock, Penobscot, Piscataquis

19% lakePfafstetter: 73112019

Sub-basin area

1 082,3km²

Upstream area

19 460,8km²

Discharge

407,42m³/s

Mean elev.

69m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Penobscot River156 km²

▲ Receives from 2 basins

Bassin de Passadumkeag River1029 km²
Bassin de Penobscot River32 km²

3 dept-equivalent regions (GADM L2)

Penobscot
Maine · United States
952.6 km²
87.8% of basin
Hancock
Maine · United States
132.1 km²
12.2% of basin
Piscataquis
Maine · United States
0.0 km²
0.0% of basin

10 intersecting protected areas

Lower Penobscot Forest
IUCN V
Conservation Easement
51.95 km² overlap
Sunkhaze Meadows
IUCN V
National Wildlife Refuge
47.03 km² overlap
Argyle
IUCN V
PCL
3.49 km² overlap
Howland Research
IUCN V
Forest
2.27 km² overlap
Piney Knoll
IUCN V
Conservation Area
0.58 km² overlap
Eddington - Timberdoodle Hill
IUCN Not Assigned
Conservation Easement
0.57 km² overlap
Marsh Island Nat Area
IUCN V
PCL
0.33 km² overlap
Water Supply Lands
IUCN V
Watershed Protection Area
0.04 km² overlap
River Parcel
IUCN V
Private Conservation
0.01 km² overlap

1 more protected areassorted by overlap area

Penobscot Shores
IUCN V
PCL
0.00 km² overlap

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

1 721 distinct species · 60 838 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).

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Penobscot River : 30 espèces reliées par 71 interactions GloBI sur 4 types (connectance 10.1%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.101

Patrimoniales

Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

5,8°C

Annual rain

1 074mm

Moisture idx (CMI)

0,19

Runoff

783mm/an

PET

864mm

AET

681mm

Mean slope

1,6°

Water table

99cm

Forest

96%

Crops

Urban

Protected

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)