Marine Protected Area (OSPAR) · FRA
Marais du Cotentin et du Bessin - Baie des Veys
- Area
- 287 km²
- IUCN cat.
- Not Reported
- Year
- 2012
Overview
- Designation
- Marine Protected Area (OSPAR)
- Established
- 2012
- Managing authority
- OSPAR Commission
Source : WDPA (UNEP-WCMC, World Database on Protected Areas).
Species present
3 760 distinct species · 129 323 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 Marais du Cotentin et du Bessin - Baie des Veys : 27 espèces dont 4 patrimoniales (LR IUCN CR/EN/VU) reliées par 80 interactions GloBI sur 3 types (connectance 12.0%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology5 basins · 4 lakes · 31 rivers
Hydrology metrics for this exact territory
Stream length here
200,2km
Lake surface here
11,77km²
Basins crossed
5
Max stream order
4
Max drainage
1 958km²
Discharge in basins
5,2m³/s
Mean precip.
827mm/an
Mean T°
11,2°C
Moisture idx
0,17
Max snow
9%
Mean runoff
699mm/an
Mean elev. (basins)
57m
Watersheds crossing here
Lakes (4, top by area)
Rivers / streams (31, ord ≥ 4)
- La Vireord 4len here27.59 km20%total135 km
- La Douveord 4len here23.72 km40%total59 km
- La Tauteord 3len here18.74 km41%total45 km
- Le Merderetord 3len here16.57 km48%total35 km
- La Sèvesord 3len here14.45 km60%total24 km
- L'Aure Inférieureord 3len here11.33 km37%total31 km
- Ancien Canal de Vire et Tauteord 3len here10.84 km95%total11 km
- Le Fil de Gorgesord 3len here8.30 km51%total16 km
- La Senelleord 4len here8.25 km55%total15 km
- Le Merderet (ancien Bras de la Douve)ord 4len here6.38 km93%total7 km
- La Grande Criqueord 1len here6.06 km66%total9 km
- Le Lozonord 3len here5.93 km26%total23 km
19 more river segmentssorted by Strahler order + length
- La Terretteord 2len here4.50 km19%total24 km
- Canal des Espagnolsord 3len here4.08 km100%total4 km
- La Saudreord 3len here3.99 km19%total21 km
- La Venloueord 2len here3.98 km34%total12 km
- L'Elleord 3len here3.81 km14%total28 km
- La Tortonneord 3len here2.96 km19%total15 km
- La Losqueord 1len here2.74 km50%total5 km
- Ruisseau du Port au Féronord 2len here2.64 km69%total4 km
- L'Holerotteord 1len here2.06 km33%total6 km
- Canal d'Auversord 3len here1.96 km57%total3 km
- Ruisseau de Coiselord 2len here1.57 km11%total15 km
- Ruisseau de Launayord 2len here1.56 km60%total3 km
- Le Briquebostord 1len here1.34 km29%total5 km
- La Sinopeord 2len here1.25 km6%total22 km
- Le Lastelleord 1len here1.20 km19%total6 km
- Le Buissonord 2len here0.93 km14%total7 km
- L'Esqueord 2len here0.90 km5%total18 km
- Ruisseau du Pont Boitardord 1len here0.34 km16%total2 km
- Balençonord 2len here0.25 km5%total5 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Location
Fond cartographique : OpenFreeMap · © OpenStreetMap contributors · Géométrie : nos sources (GADM/HydroBASINS/HydroLAKES/HydroRIVERS/WDPA)
- Centroid
- 49.30700, -0.96220
- Open in maps
- OpenStreetMap → · Satellite →
Species observed (Phase 2)
Listing species observed within this protected area requires the GBIF v2 partition × WDPA spatial overlay matview. Computing infrastructure pending.