Ruisseau
Graaf Jansdijkader
Crosses 2 administrative regions : Sluis, West-Vlaanderen
Total length
3km
Max discharge
0,4m³/s
Max Strahler
1
Segments matched
1
River geography2 admin regions · 0 communes
2 administrative regions crossed (GADM L2)
- West-VlaanderenVlaanderen · Belgium6.0 kmin this dpt
- SluisZeeland · Netherlands0.2 kmin this dpt
30 intersecting protected areas
NNN-ZE
IUCN Not AssignedNature Reserves owned by professional nature management organizations
Westerschelde & Saeftinghe
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Westerschelde & Saeftinghe
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Westerschelde & Saeftinghe
IUCN IVNature Conservation Act
Westerschelde & Saeftinghe
IUCN IVWetland of International Importance (Ramsar Site)
Vlakte van de Raan
IUCN Not ReportedMarine Protected Area (OSPAR)
Vlakte van de Raan
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Vlakte van de Raan
IUCN IVNature Conservation Act
Duingebieden inclusief Ijzermonding en Zwin
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
21 more protected areassorted by area
Het Zwin
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Polders
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
De Zwinstreek
IUCN Not AssignedFlemish Ecological Network (Flemish Region)
Zwin
IUCN Not ReportedWetland of International Importance (Ramsar Site)
NBP-WV-21-0301 type 4
IUCN IVNature management plan type 4 (Flemish Region)
Zwinpolders
IUCN Not AssignedFlemish Ecological Network (Flemish Region)
kh301
IUCN Not AssignedProtected Dunes (Flemish Region)
Zwin & Kievittepolder
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Zwin & Kievittepolder
IUCN IVNature Conservation Act
Zwin & Kievittepolder
IUCN Not ReportedSpecial Protection Area (Birds Directive)
NBP-WV-17-0012 type 4
IUCN IVNature management plan type 4 (Flemish Region)
NBP-WV-17-0012 type 4
IUCN IVNature management plan type 4 (Flemish Region)
kh407
IUCN Not AssignedProtected Dunes (Flemish Region)
NBP-WV-18-0003 type 3
IUCN IVNature management plan type 3 (Flemish Region)
NBP-WV-18-0003
IUCN IVNature management plan type 3 (Flemish Region)
NBP-WV-21-0301 type 2
IUCN VINature management plan type 2 (Flemish Region)
NBP-WV-19-0003 type 3
IUCN IVNature management plan type 3 (Flemish Region)
NBP-WV-21-0301 type 3
IUCN IVNature management plan type 3 (Flemish Region)
NBP-WV-17-0012 type 3
IUCN IVNature management plan type 3 (Flemish Region)
kh304
IUCN Not AssignedProtected Dunes (Flemish Region)
NBP-WV-20-0006 type 3
IUCN IVNature management plan type 3 (Flemish Region)
1 page = 1 named river (aggregation of 1 HydroRIVERS v10 segment). Spatial join cached after first hit.
Species present
6 119 distinct species · 409 321 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 Graaf Jansdijkader : 30 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 78 interactions GloBI sur 3 types (connectance 10.0%, 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
3km
Max discharge
0,4m³/s
Max Strahler
1
Segments matched
1
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.