Rivière· 13 segments

相模川

Crosses 10 administrative regions : Aikawa, Atsugi, Chigasaki, Ebina, Hachiōji +5

rivière

Total length

68km

Max discharge

44,1m³/s

Max Strahler

Segments matched

River geography10 admin regions · 0 communes

Parent watershed

hybas-40800449301660 km²

10 administrative regions crossed (GADM L2)

Sagamihara
Kanagawa · Japan
31.0 km
in this dpt
Atsugi
Kanagawa · Japan
7.5 km
in this dpt
Hiratsuka
Kanagawa · Japan
5.0 km
in this dpt
Samukawa
Kanagawa · Japan
1.6 km
in this dpt
Uenohara
Yamanashi · Japan
1.3 km
in this dpt
Zama
Kanagawa · Japan
1.2 km
in this dpt
Ebina
Kanagawa · Japan
0.0 km
in this dpt
Chigasaki
Kanagawa · Japan
0.0 km
in this dpt
Hachiōji
Tokyo · Japan
0.0 km
in this dpt
Aikawa
Kanagawa · Japan
0.0 km
in this dpt

19 intersecting protected areas

Takao
IUCN IV
Prefectural Wildlife Protection Area
Takao jinba
IUCN V
Prefectural Natural Park
Jinba sagami ko
IUCN V
Prefectural Natural Park
Tsukui
IUCN IV
Prefectural Wildlife Protection Area
Meiji no Mori Takao
IUCN V
Quasi National Park
Nagura
IUCN IV
Prefectural Wildlife Protection Area
Ogurayama
IUCN IV
Prefectural Wildlife Protection Area
Nagura
IUCN V
Prefectural Nature Conservation Area
Ogura yama
IUCN V
Prefectural Nature Conservation Area

10 more protected areassorted by area

Sagamiyokoyama-sagamigawa
IUCN V
Suburban Special Green Conservation Areas
Dohogawa koen
IUCN IV
Prefectural Wildlife Protection Area
Sagamigawa-hassegawazoi ryokuchi
IUCN IV
Prefectural Wildlife Protection Area
Obuchi
IUCN V
Prefectural Nature Conservation Area
Shiroyama
IUCN V
Prefectural Nature Conservation Area
Fujinokami
IUCN V
Prefectural Nature Conservation Area
Wakabadai minamigawa shamen
IUCN V
Special green space conservation districts
Yoshino
IUCN V
Prefectural Nature Conservation Area
Samukawa jinja
IUCN V
Prefectural Nature Conservation Area
Hizure
IUCN V
Prefectural Nature Conservation Area

1 page = 1 named river (aggregation of 13 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

1 501 distinct species · 4 464 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 26 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

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de 相模川 : 18 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 45 interactions GloBI sur 5 types (connectance 10.3%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.103

Patrimoniales

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)