Ontologia

HydroBASINS lev08 watershed · #2080196660

Bassin de Kassjöån

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 : Bräcke, Sundsvall, Ånge

82% lakePfafstetter: 24450441

Sub-basin area

344,7km²

Upstream area

4 195,7km²

Discharge

34,26m³/s

Mean elev.

314m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Ljungan796 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

17 intersecting protected areas

8 more protected areas

  • Jämtgaveln

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    0.14 km² overlap

  • Jämtgaveln

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.14 km² overlap

  • Jämtgaveln

    IUCN Ib

    Natura 2000 SCI

    0.14 km² overlap

  • Jämtgaveln

    IUCN Ib

    Natura 2000 SPA

    0.14 km² overlap

  • 2000645 Jämtgaveln

    IUCN Ib

    Nature Reserve

    0.13 km² overlap

  • SK 358-2005

    IUCN Ia

    Habitat Protection Area

    0.07 km² overlap

  • SK 341-1999

    IUCN Ia

    Habitat Protection Area

    0.05 km² overlap

  • SK 7-2002

    IUCN Ia

    Habitat Protection Area

    0.04 km² overlap

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

Species present

1 741 distinct species · 25 638 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

25 638 obs · 14 cellules
Obs. / cellule
≥ 6 067
3 189–6 066
2 119–3 188
1 487–2 118
< 1 487

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

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).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Kassjöån : 20 espèces reliées par 37 interactions GloBI sur 4 types (connectance 10.5%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
27
Interactions affichées
37
Connectance
0.105
Patrimoniales
0
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°

2,2°C

Annual rain

632mm

Moisture idx (CMI)

0,18

Runoff

262mm/an

PET

515mm

AET

413mm

Mean slope

5,3°

Water table

327cm

Forest

91%

Crops

0%

Urban

0%

Protected

0%

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