Ontologia

HydroBASINS lev08 watershed · #4080017160

Bassin de Sông Cửa Lớn

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 7 administrative regions : Cái Nước, Ngọc Hiển, Năm Căn, Phú Tân, Trần Văn Thời +2

Coastal basinPfafstetter: 44303130

Sub-basin area

2 181,6km²

Upstream area

2 181,6km²

Discharge

1,53m³/s

Mean elev.

2m

Administrative coverage

7 dept-equivalent regions (GADM L2)

  • Ngọc Hiển
    Cà Mau · Vietnam
    676.3 km²
    31.1% of basin
  • Năm Căn
    Cà Mau · Vietnam
    467.8 km²
    21.5% of basin
  • Đầm Dơi
    Cà Mau · Vietnam
    340.3 km²
    15.7% of basin
  • Phú Tân
    Cà Mau · Vietnam
    335.0 km²
    15.4% of basin
  • Cái Nước
    Cà Mau · Vietnam
    271.8 km²
    12.5% of basin
  • Trần Văn Thời
    Cà Mau · Vietnam
    21.3 km²
    1.0% of basin
  • Đông Hải
    Bạc Liêu · Vietnam
    0.0 km²
    0.0% of basin

3 intersecting protected areas

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

Species present

203 distinct species · 3 018 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

3 018 obs · 30 cellules
Obs. / cellule
≥ 1 824
283–1 823
6–282
3–5
< 3

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

Ecological tissue

Sample of 28 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 Sông Cửa Lớn : 22 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 29 interactions GloBI sur 3 types (connectance 6.7%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
30
Interactions affichées
29
Connectance
0.067
Patrimoniales
2
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°

26,6°C

Annual rain

2 336mm

Moisture idx (CMI)

0,42

Runoff

930mm/an

PET

1 361mm

AET

1 157mm

Mean slope

0,1°

Water table

4cm

Forest

28%

Crops

14%

Urban

4%

Protected

4%

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