Watershed · usa
Upper St John River Watershed
- Area
- 644 km²
- IUCN cat.
- V
- Year
- 1998
Overview
- Designation
- Watershed
- IUCN category
- V · Paysage protégé
Paysage façonné par l'humain digne de conservation
- Established
- 1998
- Managing authority
- Non-Governmental Organization
Source : WDPA (UNEP-WCMC, World Database on Protected Areas).
Species present
250 distinct species · 3 119 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 Upper St John River Watershed : 20 espèces reliées par 58 interactions GloBI sur 3 types (connectance 13.3%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology8 basins · 5 lakes · 25 rivers
Hydrology metrics for this exact territory
Stream length here
178,0km
Lake surface here
0,52km²
Basins crossed
8
Max stream order
5
Max drainage
3 837km²
Discharge in basins
34,9m³/s
Mean precip.
995mm/an
Mean T°
3,0°C
Moisture idx
0,26
Max snow
47%
Mean runoff
669mm/an
Mean elev. (basins)
405m
Watersheds crossing here
- Bassin de Baker Branch Saint John Riversub-area893,7 km²overlap282.73 km²44%
- Bassin de Saint John Riversub-area718,7 km²overlap167.89 km²26%
- Bassin de Rivière Daaquamsub-area1 268,7 km²overlap69.63 km²11%
- Bassin de Little Southwest Branch Saint John Riversub-area736,2 km²overlap48.44 km²8%
- Bassin de Knowles Brooksub-area220,1 km²overlap37.85 km²6%
- Bassin de Allagash Streamsub-area993,4 km²overlap19.39 km²3%
- Bassin de Loon Streamsub-area726 km²overlap17.03 km²3%
- Bassin de Depot Streamsub-area1 632,5 km²overlap1.11 km²0%
Lakes (5, top by area)
Rivers / streams (25, ord ≥ 4)
- Baker Branch Saint John Riverord 3len here37.91 km51%total74 km
- Saint John Riverord 6len here35.11 km7%total524 km
- Northwest Branch Saint John Riverord 5len here21.98 km64%total34 km
- Burntland Brookord 4len here13.04 km37%total35 km
- Desolation Brookord 2len here12.29 km100%total12 km
- Southwest Branch Saint John Riverord 4len here11.82 km19%total61 km
- Turner Brookord 2len here8.95 km43%total21 km
- Rivière Saint-Jean Sud-Ouest / Southwest Branch Saint John Riverord 3len here5.62 km13%total43 km
- Saint Francis Brookord 2len here5.30 km100%total5 km
- Oak Brookord 1len here5.10 km99%total5 km
- Doucie Brookord 1len here4.11 km36%total12 km
- Brailey Brookord 2len here3.15 km10%total32 km
13 more river segmentssorted by Strahler order + length
- West Branch Allagash Streamord 1len here2.29 km100%total2 km
- Saint Francis Brookord 1len here2.20 km13%total18 km
- Flaws Boganord 2len here1.73 km98%total2 km
- Ruisseau Carterord 2len here1.32 km11%total12 km
- Bean Brookord 1len here1.31 km100%total1 km
- Rivière Daaquamord 4len here1.24 km3%total45 km
- Rivière à la Loutreord 3len here1.12 km13%total9 km
- Ninemile Brookord 5len here0.67 km5%total14 km
- Little Southwest Branch Saint John Riverord 3len here0.61 km1%total55 km
- Allagash Streamord 3len here0.58 km1%total48 km
- Eastman Brookord 1len here0.47 km12%total4 km
- Knowles Brookord 2len here0.13 km1%total22 km
- Ruisseau Deadord 1len here≈ tangenttotal1 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Location
Fond cartographique : OpenFreeMap · © OpenStreetMap contributors · Géométrie : nos sources (GADM/HydroBASINS/HydroLAKES/HydroRIVERS/WDPA)
- Centroid
- 46.64003, -69.88343
- Open in maps
- OpenStreetMap → · Satellite →
Species observed (Phase 2)
Listing species observed within this protected area requires the GBIF v2 partition × WDPA spatial overlay matview. Computing infrastructure pending.