HydroBASINS lev08 watershed · #2080025100
Bassin de Ryå
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 4 administrative regions : Aalborg, Brønderslev, Hjørring, Jammerbugt
Sub-basin area
519,1km²
Upstream area
519,1km²
Discharge
7,88m³/s
Mean elev.
19m
Administrative coverage
4 dept-equivalent regions (GADM L2)
- 319.8 km²61.3% of basin
- 197.3 km²37.8% of basin
- 4.5 km²0.9% of basin
- 0.1 km²0.0% of basin
15 intersecting protected areas
Brønderslev Kommune private
IUCN Not Assigned§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)
30.28 km² overlap
Jammerbugt Kommune private
IUCN Not Assigned§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)
19.59 km² overlap
Store Vildmose
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
13.75 km² overlap
Store Vildmose
IUCN VProtected by conservation order, excl. Church surroundings
8.64 km² overlap
Brønderslev Kommune public
IUCN IV§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)
4.30 km² overlap
Jammerbugt Kommune public
IUCN IV§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)
4.27 km² overlap
Store Vildmose
IUCN IVProtected by conservation order, excl. Church surroundings
2.37 km² overlap
Nibe Bredning, Halkær Ådal og Sønderup Ådal
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.61 km² overlap
Ulvedybet og Nibe Bredning
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1.61 km² overlap
6 more protected areassorted by overlap area
Saltum Bjerge
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.54 km² overlap
Store Vildmose
IUCN Not AssignedProtected by conservation order, excl. Church surroundings
1.11 km² overlap
Aalborg Kommune private
IUCN Not Assigned§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)
1.03 km² overlap
Ulvedybet and Nibe Bredning
IUCN Not ReportedWetland of International Importance (Ramsar Site)
0.92 km² overlap
Aalborg Kommune public
IUCN IV§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)
0.09 km² overlap
Hjørring Kommune private
IUCN Not Assigned§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 989 distinct species · 196 579 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 27 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 Bassin de Ryå : 15 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 81 interactions GloBI sur 6 types (connectance 23.1%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
7,5°C
Annual rain
665mm
Moisture idx (CMI)
0,17
Runoff
500mm/an
PET
552mm
AET
440mm
Mean slope
0,6°
Water table
46cm
Forest
3%
Crops
44%
Urban
3%
Protected
12%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)