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AQUAPEDIA / SOURCE-LINKED RESEARCH

Chouran (Pearl Blue Lame Longfin Hikari)

蝶蘭

Historic Medaka breeder-documented selected varietyEvidence by claimIndependent review ongoing

Chouran (Pearl Blue Lame Longfin Hikari): Pale-blue body, lame and Matsui-style fin elongation expressed in a Hikari body form.

Picture gene & lineage tree

Visual pedigree of breeder-reported inputs, where available. Dashed arrows represent documentary claims or selection history, not DNA-tested genes.

Horizontal branching Medaka lineage. American name: Chouran (Pearl Blue Lame Longfin Hikari); Japanese romaji: Chouran; Japanese characters: 蝶蘭. Parent lines not documented. No pedigree or genetic connection can be drawn. Documented source links and evidence qualifiers follow the diagram.AQUAPEDIA / MEDAKA LINEAGE ATLASSTRAIN PEDIGREEANCESTRY UNKNOWNNO ANCESTRY CONNECTORS • RESEARCH GAPAn original source establishing the parent lines has not been located.ANCESTRY DATA GAPParent lines not documentedFOCAL STRAINAMERICAN / ENGLISH NAMEChouran (Pearl Blue LameLongfin Hikari)JAPANESE NAME (ROMAJI)ChouranJAPANESE LETTERS (日本語)蝶蘭
Parent lines not documented. No pedigree or genetic connection can be drawn. Not a confirmed genotype or parent-fish identification.

This strain's direct parent lines are not established by the reviewed sources. No breeding cross, genotype or inheritance pattern is implied. Source: Sources remain under review; ancestry connections will appear only with cited evidence.

Browse the larger Medaka lineage atlas ↗

View this strain’s illustrated gene tree in Discord ↗

Lineage review · Batch 015: Original parental pair has not been established from cited material; the illustrated pedigree intentionally retains an unconnected ancestry gap. Specialist source ↗

Overview

The specialist record credits Sasaki and reports Japanese Medaka Association new-variety recognition number 32 This is a historical creator/source record, not verified DNA or authenticated current broodstock.

Claim-by-claim evidence

Research findingEvidence classDirect references
Specialist entry identifies Kei Sasaki / 佐々木圭 as credited origin and lists 2018.Specialist maker/year record; original registers independently uninspectedC678 ↗
Pale-blue body, lame and Matsui-style fin elongation expressed in a Hikari body formSource-described phenotype, not a standardized diagnostic or genotype testC678 ↗
The specialist record credits Sasaki and reports Japanese Medaka Association new-variety recognition number 32Published historical breeder account or attributed breeder-summary evidenceC678 ↗
Association recognition is a historic classification, not verified genotype or a present-day stock authenticity certificateDifferentiation and explicit breeding-evidence uncertaintyC678 ↗

Evidence labels refer to documentary strength. They do not assert independently tested genetics.

Known research gaps

  • Original parent-fish specimen identities, complete breeding ledgers and unambiguous first-sale dates remain unconfirmed.
  • No molecular evidence establishes trait inheritance or the breeding uniformity of retail stock named for this variety.
  • Photographs are source-owned and have not been rehosted; licensing review and photographer attribution are pending.

Related profiles and lineages

Original research sources

Every row above links directly to its cited reference; publication or creation years are not interchangeable.