HydroBASINS lev08 watershed · #2080016110
Bassin de Torrente Petronio
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 2 administrative regions : Genova, La Spezia
Sub-basin area
312km²
Upstream area
312km²
Discharge
3,68m³/s
Mean elev.
253m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 167.8 km²53.7% of basin
- 124.1 km²39.7% of basin
30 intersecting protected areas
National Park
33.89 km² overlap
International significance Natural Marine Area
25.23 km² overlap
Monte Verruga - Monte Zenone - Roccagrande - Monte Pu
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
19.45 km² overlap
Deiva - Bracco - Pietra di Vasca - Mola
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
18.46 km² overlap
Portovenere - Riomaggiore - S. Benedetto
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
17.55 km² overlap
Punta Baffe - Punta Moneglia - Val Petronio
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
13.09 km² overlap
Punta Mesco
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
7.43 km² overlap
Regional/Provincial Nature Park
6.84 km² overlap
Montemarcello
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.88 km² overlap
21 more protected areassorted by overlap area
Guaitarola
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.38 km² overlap
Natural Marine Reserve and Natural Protected Marine Areas
3.70 km² overlap
Regional/Provincial Nature Park
2.81 km² overlap
Monte Serro
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.62 km² overlap
Fondali Punta Mesco - Rio Maggiore
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.43 km² overlap
Punta Manara
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.05 km² overlap
Costa Riomaggiore - Monterosso
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.69 km² overlap
Isola Palmaria
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.64 km² overlap
Costa di Bonassola - Framura
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.28 km² overlap
Rocche di Sant'Anna - Valle del Fico
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.27 km² overlap
Costa di Maralunga
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.43 km² overlap
Tutela del Tursiope Mar Ligure
IUCN Not ReportedSite of Community Importance (Habitats Directive)
0.43 km² overlap
Fondali Punta Manara
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.34 km² overlap
Fondali Anzo
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.30 km² overlap
Parco della Magra - Vara
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.29 km² overlap
Fondali Punta Apicchi
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.28 km² overlap
Fondali Punta di Moneglia
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.20 km² overlap
Isole Tino - Tinetto
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.15 km² overlap
Fondali Isole Palmaria - Tino - Tinetto
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.14 km² overlap
Fondali Punta Baffe
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.11 km² overlap
Fondali Punta Picetto
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.11 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 519 distinct species · 45 411 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 Torrente Petronio : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 67 interactions GloBI sur 5 types (connectance 14.4%, filtre Serrano α=0.2). 9 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°
13,3°C
Annual rain
934mm
Moisture idx (CMI)
0,10
Runoff
817mm/an
PET
841mm
AET
624mm
Mean slope
15,5°
Water table
480cm
Forest
82%
Crops
4%
Urban
19%
Protected
22%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)