Ontologia

Rivière· 23 segments

Nissan

Crosses 4 administrative regions : Gislaved, Halmstad, Hylte, Jönköping

rivière

Total length

90km

Max discharge

47,3m³/s

Max Strahler

4

Segments matched

23

River geography4 admin regions · 0 communes

Parent watershed

hybas-20800330802589 km²

4 administrative regions crossed (GADM L2)

  • Halmstad
    Halland · Sweden
    39.9 km
    in this dpt
  • Gislaved
    Jönköping · Sweden
    27.2 km
    in this dpt
  • Jönköping
    Jönköping · Sweden
    22.2 km
    in this dpt
  • Hylte
    Halland · Sweden
    5.2 km
    in this dpt

30 intersecting protected areas

21 more protected areas

  • n/a.

    IUCN IV

    Nature conservation agreement, County Administrative Board

  • Johansfors-Nissaström

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

  • Johansfors-Nissaström

    IUCN Ia

    Natura 2000 SCI

  • Aleskogen

    IUCN Ia

    Natura 2000 SCI

  • Aleskogen

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

  • n/a.

    IUCN IV

    Nature conservation agreement, County Administrative Board

  • n/a.

    IUCN IV

    Nature conservation agreement, County Administrative Board

  • 2040974 Krakhultabäcken

    IUCN IV

    Nature Reserve

  • 2049073 Kvarnsjöskogen

    IUCN Ia

    Nature Reserve

  • Villstad

    IUCN IV

    Natura 2000 SCI

  • Villstad

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

  • A615880

    IUCN Not Applicable

    Voluntary set-aside areas

  • SK 316-2001

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

  • n/a.

    IUCN IV

    Nature conservation agreement, County Administrative Board

  • n/a.

    IUCN IV

    Nature conservation agreement, County Administrative Board

  • A495964

    IUCN Not Applicable

    Voluntary set-aside areas

  • A390182

    IUCN Not Applicable

    Voluntary set-aside areas

  • n/a.

    IUCN IV

    Nature conservation agreement, County Administrative Board

  • n/a.

    IUCN IV

    Nature conservation agreement, County Administrative Board

  • n/a.

    IUCN IV

    Nature conservation agreement, County Administrative Board

  • n/a.

    IUCN IV

    Nature conservation agreement, County Administrative Board

1 page = 1 named river (aggregation of 23 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

737 distinct species · 4 002 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 34 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 Nissan : 32 espèces reliées par 70 interactions GloBI sur 5 types (connectance 12.5%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
70
Connectance
0.125
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydrology (HydroRIVERS v10)

Total length

90km

Max discharge

47,3m³/s

Max Strahler

4

Segments matched

23

HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.