Picture gene & lineage tree
Visual pedigree of breeder-reported inputs, where available. Dashed arrows represent documentary claims or selection history, not DNA-tested genes.
Hikari body-form derivation; unspecified individual parents Source: Japan Medaka Universe, Tarumi's first-person Emerald Fin Hikari account
Browse the larger Medaka lineage atlas ↗
View this strain’s illustrated gene tree in Discord ↗
Lineage review · Batch 017: A breeder-recorded foundation, selection stage or form derivation is shown with dashed lines. The diagram is not DNA proof and may not identify individual parent fish. Specialist source ↗
Overview
The Hikari-form Emerald Fin selection highlights blue-green fin reflection and side/top-view display. This account distinguishes original founder varieties, named selected variants, and unfinished breeder projects.
Claim-by-claim evidence
| Research finding | Evidence class | Direct references |
|---|---|---|
| Developer role: Masaharu Tarumi / 垂水政治 — Creator/selector of Emerald Fin's Hikari body-form expression. | Breeder-submitted role, separate from original source-stock creators | JMU ↗ |
| The breeder gallery treats this as a Hikari-body-form variant of Emerald Fin, with Aqua Life November 2020 noted as editorial coverage. | First-person breeding/selection account; publication and sale chronology not independently complete | JMU ↗ |
| Hikari body form with large reflective fins and a cool blue-green fin-light appearance. | Observed or intended visual selection; not a genetic trait test | JMU ↗ |
| A Hikari-form designation is a morphological variant, not a separately verified Emerald Moon or an independently established genome. | Lineage ambiguity or experimental development constraint | JMU ↗ |
Evidence labels refer to documentary strength. They do not assert independently tested genetics.
Known research gaps
- Fish-specific parent identifiers, stock provenance, and any complete breeding generation log are not independently verified.
- DNA causation, segregation ratios, phenotype stability across breeders and first commercial sale year are unverified.
- Third-party fish photos cannot be reused without creator or rights-holder permission.
Related profiles and lineages
Original research sources
Every row above links directly to its cited reference; publication or creation years are not interchangeable.
- JMU: Japan Medaka Universe member gallery / first-person breeder submissions — Original named developer submissions, not DNA pedigree verification