Ontologia

Rivière· 201 segments

Great Fish River

Crosses 3 administrative regions : Amathole, Cacadu, Chris Hani

rivière

Total length

711km

Max discharge

25,9m³/s

Max Strahler

5

Segments matched

201

River geography3 admin regions · 0 communes

Parent watershed

hybas-1081654620332 km²

3 administrative regions crossed (GADM L2)

  • Cacadu
    Eastern Cape · South Africa
    560.8 km
    in this dpt
  • Chris Hani
    Eastern Cape · South Africa
    347.8 km
    in this dpt
  • Amathole
    Eastern Cape · South Africa
    124.5 km
    in this dpt

9 intersecting protected areas

1 page = 1 named river (aggregation of 201 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

42 distinct species · 91 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 17 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 Great Fish River : 14 espèces reliées par 12 interactions GloBI sur 4 types (connectance 8.8%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
17
Interactions affichées
12
Connectance
0.088
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

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

Hydrology (HydroRIVERS v10)

Total length

711km

Max discharge

25,9m³/s

Max Strahler

5

Segments matched

201

HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.