Rivière· 13 segments
Atchafalaya Basin Main Channel
Crosses 2 administrative regions : Saint Martin, Saint Mary
Total length
34km
Max discharge
179,7m³/s
Max Strahler
5
Segments matched
13
River geography2 admin regions · 0 communes
2 administrative regions crossed (GADM L2)
- Saint MartinLouisiana · United States43.7 kmin this dpt
- Saint MaryLouisiana · United States24.9 kmin this dpt
1 page = 1 named river (aggregation of 13 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
67 distinct species · 162 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 27 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 Atchafalaya Basin Main Channel : 19 espèces reliées par 39 interactions GloBI sur 2 types (connectance 11.1%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
34km
Max discharge
179,7m³/s
Max Strahler
5
Segments matched
13
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.