HydroBASINS lev08 watershed · #5080087540
Bassin de Northeast Stream
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 across 2 countries : Auckland islands, Campbell Islands, Macquarie Island
Sub-basin area
980,2km²
Upstream area
980,2km²
Discharge
4,02m³/s
Mean elev.
164m
Administrative coverage
3 dept-equivalent regions (GADM L2)
- 591.2 km²60.1% of basin
- 134.4 km²13.7% of basin
- 114.6 km²11.6% of basin
9 intersecting protected areas
New Zealand Sub-Antarctic Islands
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
830.44 km² overlap
Auckland Islands
IUCN IaNature Reserve
567.90 km² overlap
Macquarie Island
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
153.43 km² overlap
Macquarie Island
IUCN IaNature Reserve
124.00 km² overlap
Auckland Islands - Motu Maha
IUCN IaMarine Reserve
121.09 km² overlap
Campbell Island
IUCN IaNature Reserve
108.62 km² overlap
Campbell Heritage
IUCN VIBenthic Protection Area
32.84 km² overlap
Marine Reserve
31.69 km² overlap
Macquarie Island
IUCN IaNature Reserve
29.43 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 344 distinct species · 10 813 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Bassin de Northeast Stream : 28 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 32 interactions GloBI sur 3 types (connectance 5.4%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
6,2°C
Annual rain
1 416mm
Moisture idx (CMI)
0,65
Runoff
1 204mm/an
PET
501mm
AET
501mm
Mean slope
12,1°
Water table
524cm
Forest
0%
Crops
0%
Urban
0%
Protected
100%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)