Rivière· 25 segments

Nottawasaga River

Crosses 3 administrative regions : Dufferin, Lake Hurron, Simcoe

rivière

Total length

109km

Max discharge

18,8m³/s

Max Strahler

Segments matched

River geography3 admin regions · 0 communes

Parent watershed

hybas-70804314401366 km²

3 administrative regions crossed (GADM L2)

Simcoe
Ontario · Canada
65.8 km
in this dpt
Dufferin
Ontario · Canada
32.5 km
in this dpt
Lake Hurron
Ontario · Canada
7.5 km
in this dpt

22 intersecting protected areas

Minesing Wetlands Conservation Area
IUCN IV
Conservation Area
Wasaga Beach Provincial Park (Recreational Class)
IUCN II
Provincial Park
DUC Fee Simple Lands
IUCN IV
Ownership by Environmental Non-Governmental Organization
Hockley Valley Provincial Park (Nature Reserve Class)
IUCN Ia
Provincial Park
DUC Fee Simple Lands
IUCN IV
Ownership by Environmental Non-Governmental Organization
DUC Fee Simple Lands
IUCN IV
Ownership by Environmental Non-Governmental Organization
DUC Fee Simple Lands
IUCN IV
Ownership by Environmental Non-Governmental Organization
DUC Fee Simple Lands
IUCN IV
Ownership by Environmental Non-Governmental Organization
DUC Fee Simple Lands
IUCN IV
Ownership by Environmental Non-Governmental Organization

13 more protected areassorted by area

DUC Fee Simple Lands
IUCN IV
Ownership by Environmental Non-Governmental Organization
DUC Fee Simple Lands
IUCN IV
Ownership by Environmental Non-Governmental Organization
Maplecross Nature Reserve At Canning's Falls
IUCN Ia
NGO/Land Trust/Agency - Fee Simple Property
DUC Fee Simple Lands
IUCN IV
Ownership by Environmental Non-Governmental Organization
DUC Fee Simple Lands
IUCN IV
Ownership by Environmental Non-Governmental Organization
Hemlock Ridges
IUCN Ia
NGO/Land Trust/Agency - Fee Simple Property
DUC Fee Simple Lands
IUCN IV
Ownership by Environmental Non-Governmental Organization
Cedar Highlands
IUCN Ia
NGO/Land Trust/Agency - Fee Simple Property
DUC Fee Simple Lands
IUCN IV
Ownership by Environmental Non-Governmental Organization
DUC Fee Simple Lands
IUCN IV
Ownership by Environmental Non-Governmental Organization
DUC Fee Simple Lands
IUCN IV
Ownership by Environmental Non-Governmental Organization
Levitt Tract
IUCN IV
Municipal Heritage/Natural Area
McKichan
IUCN Ia
NGO/Land Trust/Agency - Fee Simple Property

1 page = 1 named river (aggregation of 25 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

1 355 distinct species · 14 298 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 31 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 Nottawasaga River : 21 espèces reliées par 71 interactions GloBI sur 3 types (connectance 14.3%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.143

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)