{
  "@context": "https://schema.org",
  "@type": "Taxon",
  "slug": "koi",
  "name": "Koi",
  "scientificName": "Cyprinus rubrofuscus",
  "category": "Fish",
  "summary": "Koi are ornamental varieties of the common carp (Cyprinus rubrofuscus), bred over centuries in Japan and China for their vivid colours and patterns. Kept in garden ponds and water features around the world, they typically reach 60 to 90 cm (2 to 3 ft) and around 5 kg, swimming slowly and steadily near the surface. Well cared-for koi commonly live 25 to 35 years, and some famously far longer.",
  "conservationStatus": "Least Concern",
  "taxonomy": {
    "kingdom": "Animalia",
    "phylum": "Chordata",
    "class": "Actinopterygii",
    "order": "Cypriniformes",
    "family": "Cyprinidae",
    "genus": "Cyprinus"
  },
  "stats": {
    "weightKg": 5,
    "lengthM": 0.75,
    "topSpeedKmh": 10,
    "lifespanYears": 30
  },
  "facts": [
    {
      "label": "Scientific name",
      "value": "Cyprinus rubrofuscus"
    },
    {
      "label": "Diet",
      "value": "Omnivore"
    },
    {
      "label": "Habitat",
      "value": "Garden ponds; wild carp in rivers and lakes"
    },
    {
      "label": "Lifespan",
      "value": "25–35 years, sometimes much longer"
    },
    {
      "label": "Length",
      "value": "60–90 cm (2–3 ft)"
    },
    {
      "label": "Top speed",
      "value": "Slow, steady swimmer"
    },
    {
      "label": "Conservation status",
      "value": "Least Concern (IUCN)"
    }
  ],
  "range": {
    "nativeRange": "Developed as an ornamental carp in Japan and kept in ponds worldwide; wild ancestors live in East Asian rivers and lakes.",
    "continents": [
      "Asia"
    ]
  },
  "sources": [
    {
      "citation": "IUCN Red List — Cyprinus rubrofuscus.",
      "url": "https://www.iucnredlist.org/search?query=Cyprinus%20rubrofuscus&searchType=species"
    },
    {
      "citation": "Animal Diversity Web — Cyprinus rubrofuscus. University of Michigan Museum of Zoology.",
      "url": "https://animaldiversity.org/accounts/Cyprinus_rubrofuscus/"
    },
    {
      "citation": "Wikipedia — Koi.",
      "url": "https://en.wikipedia.org/wiki/Cyprinus_rubrofuscus"
    }
  ],
  "lastReviewed": "2026-07-16",
  "canonicalUrl": "https://globalanimalguide.org/animals/koi/",
  "license": {
    "name": "CC BY-NC 4.0",
    "url": "https://creativecommons.org/licenses/by-nc/4.0/",
    "attribution": "Global Animal Guide — https://globalanimalguide.org/animals/koi/",
    "note": "Free to reuse for non-commercial purposes with attribution and a link back to the canonical page."
  }
}