Ruisseau
Watergang Denna
Crosses 2 administrative regions : Nord, Pas-de-Calais
Total length
7km
Max discharge
12,5m³/s
Max Strahler
3
Segments matched
1
River geography2 admin regions · 6 communes
2 administrative regions crossed (GADM L2)
- NordHauts-de-France · France6.1 kmin this dpt
- Pas-de-CalaisHauts-de-France · France0.0 kmin this dpt
6 communes (L5)For countries with L5
- Saint-Pierre-Brouck4.98 km
- Holque0.81 km
- Bourbourg0.28 km
- Cappelle-Brouck0.00 km
- Ruminghem0.00 km
- Sainte-Marie-Kerque0.00 km
1 intersecting protected areas
Caps Et Marais D\'Opale
IUCN VRegional Nature Park
1 page = 1 named river (aggregation of 1 HydroRIVERS v10 segment). Spatial join cached after first hit.
Species present
616 distinct species · 10 326 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 Watergang Denna : 19 espèces reliées par 143 interactions GloBI sur 6 types (connectance 22.7%, filtre Serrano α=0.2). 17 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
7km
Max discharge
12,5m³/s
Max Strahler
3
Segments matched
1
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.