HydroBASINS lev08 watershed · #2080251810
Bassin de Marimetsa oja
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 6 administrative regions : Kullamaa, Martna, Märjamaa, Nissi, Risti +1
Sub-basin area
301,9km²
Upstream area
301,9km²
Discharge
3,4m³/s
Mean elev.
32m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
6 dept-equivalent regions (GADM L2)
- 167.7 km²55.2% of basin
- MärjamaaRapla · Estonia48.9 km²16.1% of basin
- 36.1 km²11.9% of basin
- 35.4 km²11.7% of basin
- 13.4 km²4.4% of basin
- 2.0 km²0.7% of basin
30 intersecting protected areas
Marimetsa-Õmma
IUCN Not ReportedSpecial Protection Area (Birds Directive)
74.91 km² overlap
Marimetsa-Õmma
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
74.91 km² overlap
Marimetsa looduskaitseala
IUCN Not AssignedNature reserve
49.87 km² overlap
Managed conservation zone of nature reserve
42.48 km² overlap
Limited-conservation area
12.34 km² overlap
Laiküla
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
10.98 km² overlap
Laiküla hoiuala
IUCN VILimited-conservation area
10.91 km² overlap
Limited-conservation area
5.14 km² overlap
Marimetsa LKA, Kullamaa pv.
IUCN VILimited management zone of nature reserve
4.25 km² overlap
21 more protected areassorted by overlap area
Käntu-Kastja
IUCN Not ReportedSite of Community Importance (Habitats Directive)
1.61 km² overlap
Käntu-Kastja
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1.61 km² overlap
Limited-conservation area
1.57 km² overlap
Marimetsa LKA, Kalju pv.
IUCN VILimited management zone of nature reserve
1.51 km² overlap
Marimetsa LKA, Palivere pv.
IUCN VILimited management zone of nature reserve
0.93 km² overlap
Limited-conservation area
0.71 km² overlap
Marimetsa LKA, Kaasiku pv.
IUCN VILimited management zone of nature reserve
0.38 km² overlap
Marimetsa LKA, Risti pv.
IUCN VILimited management zone of nature reserve
0.32 km² overlap
Matsalu
IUCN IIWetland of International Importance (Ramsar Site)
0.23 km² overlap
Väinameri
IUCN Not ReportedBaltic Sea Protected Area (HELCOM)
0.22 km² overlap
Väinamere
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.22 km² overlap
Väinamere
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.22 km² overlap
Matsalu rahvuspark
IUCN Not AssignedNational park
0.22 km² overlap
Luiste hoiuala (Lääne)
IUCN VILimited-conservation area
0.21 km² overlap
Luiste
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.21 km² overlap
Matsalu RP, Matsalu pv.
IUCN VILimited management zone of national park
0.21 km² overlap
Mustjärve raba
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.20 km² overlap
Koluvere mõisa park
IUCN VLimited management zone of protected landscape
0.14 km² overlap
VEP nr.205844
IUCN Not AssignedWoodland key habitat
0.12 km² overlap
VEP nr.205842
IUCN Not AssignedWoodland key habitat
0.11 km² overlap
VEP nr.205843
IUCN Not AssignedWoodland key habitat
0.08 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 728 distinct species · 20 580 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 Marimetsa oja : 25 espèces reliées par 95 interactions GloBI sur 6 types (connectance 15.1%, filtre Serrano α=0.2). 11 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°
5,5°C
Annual rain
637mm
Moisture idx (CMI)
0,15
Runoff
359mm/an
PET
541mm
AET
418mm
Mean slope
0,5°
Water table
19cm
Forest
48%
Crops
18%
Urban
0%
Protected
27%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)