HydroBASINS lev08 watershed · #2080009280
Bassin de Sazlı Dere
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 : Arnavutkoy, Büyükçekmece, Silivri, Çatalca
Sub-basin area
633,8km²
Upstream area
634,1km²
Discharge
6,38m³/s
Mean elev.
106m
Administrative coverage
4 dept-equivalent regions (GADM L2)
- 314.0 km²49.5% of basin
- 186.7 km²29.4% of basin
- 95.5 km²15.0% of basin
- 38.5 km²6.1% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
833 distinct species · 72 998 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 Sazlı Dere : 27 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 62 interactions GloBI sur 2 types (connectance 12.5%, filtre Serrano α=0.2). 5 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°
13,4°C
Annual rain
674mm
Moisture idx (CMI)
-0,28
Runoff
334mm/an
PET
943mm
AET
558mm
Mean slope
4,0°
Water table
258cm
Forest
13%
Crops
70%
Urban
16%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)