Ontologia

HydroBASINS lev08 watershed · #2080021310

Bassin du Goyen

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 1 administrative regions : Finistère

Coastal basinPfafstetter: 23230519

Sub-basin area

1 077,9km²

Upstream area

1 077,9km²

Discharge

10m³/s

Mean elev.

52m

Administrative coverage

1 dept-equivalent regions (GADM L2)

60 communes (GADM L5)

30 intersecting protected areas

  • Armorique

    IUCN V

    Regional Nature Park

    182.01 km² overlap

  • Presqu'Ile de Crozon

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    42.20 km² overlap

  • Iroise

    IUCN Not Reported

    Marine Protected Area (OSPAR)

    28.40 km² overlap

  • Cap Sizun

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    28.27 km² overlap

  • Iroise

    IUCN V

    Marine Nature Park

    26.14 km² overlap

  • Baie d'Audierne

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    21.40 km² overlap

  • Baie d'Audierne

    IUCN IV

    Wetland of International Importance (Ramsar Site)

    20.83 km² overlap

  • Baie d'Audierne

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    9.43 km² overlap

  • Rade de Brest, estuaire de l'Aulne

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    8.66 km² overlap

21 more protected areas

  • Baie d\'audierne

    IUCN IV

    Land acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)

    6.68 km² overlap

  • Cap de la chevre

    IUCN IV

    Land acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)

    5.82 km² overlap

  • Rade de Brest : Baie de Daoulas, Anse de Poulmic

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    5.52 km² overlap

  • Rivières de Pont-l'Abbé et de l'Odet

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    4.90 km² overlap

  • Roches de Penmarch

    IUCN Not Reported

    Marine Protected Area (OSPAR)

    4.59 km² overlap

  • Roches de Penmarc'h

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    4.59 km² overlap

  • Roches de Penmarch

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    4.59 km² overlap

  • Complexe du Menez Hom

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    3.88 km² overlap

  • Chaussée de Sein

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    3.87 km² overlap

  • Côtes de Crozon

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    2.97 km² overlap

  • Le polder

    IUCN IV

    Land acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)

    2.79 km² overlap

  • Etang de kerloc\'h

    IUCN IV

    Land acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)

    2.52 km² overlap

  • Cap Sizun

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    1.89 km² overlap

  • Camaret

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    1.82 km² overlap

  • Pointe du raz

    IUCN IV

    Land acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)

    1.68 km² overlap

  • Sites D\'Intérêt Géologique De La Presqu\'Île De Crozon

    IUCN IV

    Regional Nature Reserve

    1.57 km² overlap

  • Marais de la joie et de lescors

    IUCN IV

    Land acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)

    1.12 km² overlap

  • Trez ar goarem

    IUCN IV

    Land acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)

    1.09 km² overlap

  • Presqu\'ile de roscanvel

    IUCN IV

    Land acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)

    1.08 km² overlap

  • L\'aber

    IUCN IV

    Land acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)

    1.06 km² overlap

  • Bois Du Loc\'H

    IUCN Ia

    Forest Integral Biological Reserve

    0.66 km² overlap

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

Species present

5 922 distinct species · 340 457 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

340 457 obs · 33 cellules
Obs. / cellule
≥ 64 766
17 778–64 765
10 247–17 777
7 518–10 246
< 7 518

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

Ecological tissue

Sample of 33 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 du Goyen : 25 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 67 interactions GloBI sur 4 types (connectance 12.7%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
67
Connectance
0.127
Patrimoniales
3
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°

11,3°C

Annual rain

1 089mm

Moisture idx (CMI)

0,38

Runoff

844mm/an

PET

677mm

AET

570mm

Mean slope

2,5°

Water table

154cm

Forest

13%

Crops

61%

Urban

2%

Protected

21%

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