Ontologia

HydroBASINS lev08 watershed · #1081588570

Bassin de Fish 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 3 administrative regions : Gibeon, Mariental Rural, Mariental Urban

Pfafstetter: 12720913

Sub-basin area

858km²

Upstream area

15 170,4km²

Discharge

1,13m³/s

Mean elev.

1 118m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Fish River821 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

2 intersecting protected areas

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

Species present

477 distinct species · 2 604 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 604 obs · 18 cellules
Obs. / cellule
≥ 1 606
219–1 605
92–218
35–91
< 35

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Ecological tissue

Sample of 26 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

Indicateurs du tissu écologique

Tissu écologique de Bassin de Fish River : 21 espèces reliées par 25 interactions GloBI sur 3 types (connectance 7.7%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
26
Interactions affichées
25
Connectance
0.077
Patrimoniales
0
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°

20,5°C

Annual rain

212mm

Moisture idx (CMI)

-0,88

Runoff

9mm/an

PET

1 835mm

AET

177mm

Mean slope

1,0°

Water table

272cm

Forest

0%

Crops

1%

Urban

2%

Protected

1%

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