koi
Let an agent explain koi, relay history, varieties, care and health from aquaculture and hobbyist organisation sources, describe the named varieties, advise against release into natural waters and on disease reporting, and distinguish koi from goldfish, wild common carp and other pond fish.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify
Researched by: Claude
Purpose and description
Let an agent explain koi, relay history, varieties, care and health from aquaculture and hobbyist organisation sources, describe the named varieties, advise against release into natural waters and on disease reporting, and distinguish koi from goldfish, wild common carp and other pond fish.
Ornamental domesticated varieties of carp, descended from Amur carp and developed in Japan, notably around Niigata from the 19th century, bred for colour and pattern in varieties the registry aliases name such as Kohaku, white with red markings, Showa, black with red and white, Tancho, white with a single red head spot, Shusui, a scaleless blue variety, and the diverse Kawarimono class, as well as long-finned butterfly koi developed in the United States; koi are kept in ponds, can live for decades, are affected by diseases such as koi herpesvirus, notifiable in some countries, and should not be released into the wild, where carp can harm ecosystems.
What it is for: Ornamental pond fish.
It can be explain history and varieties; relay care and health; describe named varieties; advise on release and disease rules.
Distinguishing features
Barbels
Colour varieties
Long-lived
Japanese breeding tradition
What it looks like
Large colourful fish with barbels, in patterns of red, white, black, yellow and blue.
Physical character
ancestry: Amur carp note
breeding centre: Niigata Prefecture, Japan place
koi herpesvirus: notifiable disease in some countries note
lifespan: often several decades note
How it is recognised
Ornamental coloured carp
Showa, Tancho, Kawarimono, Kohaku, butterfly koi, Shusui
Goldfish lack barbels and are smaller; wild carp are dull; other pond fish include orfe and tench
Related models
is a kind of - in registry terms
is derived from -
is contrasted with -
can be affected by -
In practice
Families and kinds
Gosanke varieties Kohaku, Sanke and Showa
Tancho
Asagi and Shusui
Kawarimono
butterfly koi
Standards and regulation
Animal health rules on notifiable fish diseases
Invasive species rules against releasing fish
Animal welfare laws
Failure modes and hazards
Releasing koi into natural waters
Spreading koi herpesvirus
Poor water quality harming fish
Also called
Where this came from
wikidata · CC0 1.0
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.
Understand What koi are.
Science.
Definition
Definition.
Definition
Definition.
- What are koi, and how do they differ from goldfish, wild carp and other pond fish? definition
- Are koi dying suddenly in large numbers, which may be a notifiable disease to report to animal health authorities? boundary
Varieties
Named varieties.
Varieties
Varieties.
- What are Showa, Tancho, Kawarimono, Kohaku, Shusui and butterfly koi? definition
- Which entry fits the specific variety? action
Keeping Care.
Regulation.
Ponds
Pond care.
Ponds
Ponds.
- What pond size, filtration and water quality do koi need? provenance
- Which references are standard? provenance
Health
Health.
Health
Health.
- What diseases affect koi, and how are they reported? provenance
- Which entry fits koi herpesvirus? action
Culture History and culture.
Sources.
Niigata
Breeding history.
Niigata
Niigata.
- How did Niigata rice farmers develop koi? provenance
- Which sources are cited? provenance
Symbolism
Symbolism.
Symbolism
Symbolism.
- What do koi symbolise in Japanese culture, such as koinobori? provenance
- Which entry fits koinobori? action
Context Environment and market.
Context.
Invasive
Release risks.
Invasive
Invasive.
- Why do released koi and carp harm lakes and rivers? provenance
- Which entry fits common carp as an invasive species? action
Shows
Koi shows.
Shows
Shows.
- How are koi judged at shows such as the All Japan Koi Show? provenance
- Which entry fits koi show? action
What the second pass must settle
- Should each variety be a separate entry?
- How should breeder and veterinary sources be linked?
- Should butterfly koi be a separate entry?