Ruisseau· 8 segments

Great Brook

Crosses 4 administrative regions : Hillsborough, Merrimack, Middlesex, Worcester

ruisseau

Total length

211km

Max discharge

0,6m³/s

Max Strahler

Segments matched

River geography4 admin regions · 0 communes

Parent watershed

hybas-7080468810453 km²

4 administrative regions crossed (GADM L2)

Hillsborough
New Hampshire · United States
17.8 km
in this dpt
Merrimack
New Hampshire · United States
6.4 km
in this dpt
Worcester
Massachusetts · United States
5.5 km
in this dpt
Middlesex
Massachusetts · United States
0.2 km
in this dpt

13 intersecting protected areas

Phillips Cr 4
IUCN Not Assigned
Conservation Easement
Unknown
IUCN V
Park
Derby Woods CR
IUCN Not Assigned
Conservation Easement
Rotch
IUCN V
Wildlife Preserve
Skinner CR
IUCN Not Assigned
Conservation Easement
Barretto
IUCN V
Local Conservation Area
Desmarais
IUCN V
Local Conservation Area
GBI and Gavin
IUCN V
Local Conservation Area
Burnham Road CR
IUCN Not Assigned
Conservation Easement

4 more protected areassorted by area

Robidoux CR
IUCN Not Assigned
Conservation Easement
Carvalho CR
IUCN Not Assigned
Conservation Easement
Finlay Cr
IUCN Not Assigned
Conservation Easement
Roemer Cr
IUCN Not Assigned
Conservation Easement

1 page = 1 named river (aggregation of 8 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

288 distinct species · 16 935 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 47 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 Great Brook : 36 espèces reliées par 95 interactions GloBI sur 4 types (connectance 8.8%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.088

Patrimoniales

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

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

Hydrology (HydroRIVERS v10)