Rivière· 8 segments
Le Gouessant
Crosses 1 administrative regions : Côtes-d'Armor
Total length
46km
Max discharge
7m³/s
Max Strahler
4
Segments matched
8
River geography1 admin regions · 14 communes
1 administrative regions crossed (GADM L2)
- Côtes-d'ArmorBretagne · France28.7 kmin this dpt
14 communes (L5)For countries with L5
- Lamballe13.97 km
- Saint-Glen3.76 km
- Morieux3.31 km
- Saint-Trimoël2.22 km
- Andel1.45 km
- Trébry1.11 km
- Plestan1.00 km
- Penguily0.78 km
- Landéhen0.55 km
- Hillion0.52 km
- Planguenoual0.00 km
- Coëtmieux0.00 km
- La Malhoure0.00 km
- Noyal0.00 km
5 intersecting protected areas
Baie de Saint-Brieuc - Est
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Baie de Saint-Brieuc - Est
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Baie de Saint-Brieuc
IUCN Not ReportedMarine Protected Area (OSPAR)
Baie De Saint-Brieuc
IUCN IVNational Nature Reserve
Cote de penthievre
IUCN IVLand acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)
1 page = 1 named river (aggregation of 8 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
666 distinct species · 7 235 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Le Gouessant : 26 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 65 interactions GloBI sur 4 types (connectance 10.3%, 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).
Hydrology (HydroRIVERS v10)
Total length
46km
Max discharge
7,0m³/s
Max Strahler
4
Segments matched
8
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.