HydroBASINS lev08 watershed · #8080002950
Bassin de Katmai River
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 2 administrative regions : Kodiak Island, Lake and Peninsula
Sub-basin area
525,6km²
Upstream area
525,7km²
Discharge
14,22m³/s
Mean elev.
690m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 521.0 km²98.6% of basin
- 7.1 km²1.3% of basin
2 intersecting protected areas
Katmai Bay
IUCN IINational Park
528.36 km² overlap
Katmai
IUCN IbWilderness Area
528.36 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
45 distinct species · 56 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 18 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 Katmai River : 18 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 13 interactions GloBI sur 2 types (connectance 8.5%, filtre Serrano α=0.2).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
-0,1°C
Annual rain
880mm
Moisture idx (CMI)
0,52
Runoff
970mm/an
PET
422mm
AET
395mm
Mean slope
14,4°
Water table
538cm
Forest
0%
Crops
0%
Urban
0%
Protected
100%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)