HydroBASINS lev08 watershed · #8080002960

Bassin de Alagogshak Creek

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

Coastal basin 2% lakePfafstetter: 81153197

Sub-basin area

3 268km²

Upstream area

3 268km²

Discharge

0,19m³/s

Mean elev.

282m

Administrative coverage

2 dept-equivalent regions (GADM L2)

Kodiak Island
Alaska · United States
1570.9 km²
47.8% of basin
Lake and Peninsula
Alaska · United States
1541.7 km²
46.9% of basin

8 intersecting protected areas

Alaska Peninsula
IUCN IV
National Wildlife Refuge
1712.13 km² overlap
Becharof
IUCN IV
National Wildlife Refuge
665.51 km² overlap
Becharof
IUCN Ib
Wilderness Area
547.02 km² overlap
Katmai Bay
IUCN II
National Park
370.83 km² overlap
Katmai
IUCN Ib
Wilderness Area
370.83 km² overlap
Aniakchak
IUCN V
National Preserve
370.47 km² overlap
Alaska Maritime National Wildlife Refuge
IUCN IV
Marine Protected Area
15.43 km² overlap
Alaska Maritime
IUCN IV
National Wildlife Refuge
15.38 km² overlap

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

604 distinct species · 14 464 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 43 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).

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Alagogshak Creek : 30 espèces reliées par 99 interactions GloBI sur 4 types (connectance 10.5%, filtre Serrano α=0.2). 14 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.105

Patrimoniales

Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

1,7°C

Annual rain

687mm

Moisture idx (CMI)

0,35

Runoff

480mm/an

PET

441mm

AET

389mm

Mean slope

13,5°

Water table

551cm

Forest

Crops

Urban

Protected

91%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)