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AQUAPEDIA / SOURCE-LINKED RESEARCH

Original Real Long Fin — Nakazato

リアルロングフィン

Breeder-attributed historical Medaka varietyEvidence by claimIndependent review ongoing

Nakazato's original Real Long Fin fin-form development, distinct from Matsui Hirenaga.

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: Original Real Long Fin — Nakazato; Japanese romaji: not verified; Japanese characters: リアルロングフィン. Dashed connectors show breeder-reported input or selection history; they do not prove genetic parentage. Documented source links and evidence qualifiers follow the diagram.AQUAPEDIA / MEDAKA LINEAGE ATLASSTRAIN PEDIGREEREPORTED LINEAGEDASHED BRANCHES • REPORTED INPUTS / SELECTION STAGESNot an individual-fish pedigree or DNA / dominance test.REPORTED INPUT / STAGE 1S-Miyuki family: two long-finnedfounder males found 2020-06-22FOCAL STRAINAMERICAN / ENGLISH NAMEOriginal Real Long Fin —NakazatoJAPANESE NAME (ROMAJI)Not verifiedJAPANESE LETTERS (日本語)リアルロングフィン
Dashed connectors show breeder-reported input or selection history; they do not prove genetic parentage. Not a confirmed genotype or parent-fish identification.

Documented one-family founder discovery; later normal-fin female outcross/maintenance reported, exact mothers and genotype not established Source: PCS/Pisces publisher direct Nakazato breeding visits (2021, 2022)

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View this strain’s illustrated gene tree in Discord ↗

Lineage review · Batch 19: The reviewed records do not establish a defensible breeding cross; picture ancestry remains disconnected. Original specialist source ↗

Overview

Nakazato's original Real Long Fin fin-form development, distinct from Matsui Hirenaga. The evidence below is based on a documented specialist variety entry, not independently verified laboratory genetics.

Claim-by-claim evidence

Research findingEvidence classDirect references
The specialist variety catalogue identifies Yoshinori Nakazato / 中里良則 as the original maker for the 2020 record.Documented specialty-catalogue attribution, not independently authenticated creator correspondenceR253 ↗
Proportionately lengthened fins that retain their underlying fin shape rather than simply feathering or splitting.Source-defined phenotype and classification, not DNA genotypeR253 ↗
The Zukan reference attributes creation in 2020 to Nakazato and identifies a blue exterior-light stock description.Specialist historical selection summary; precise broodstock not verifiedR253 ↗
Different commercial color crosses that carry Real Long Fin do not automatically share authenticated original parent fish.Differentiation from another historical name or pedigree limitationR253 ↗

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

Known research gaps

  • No independently inspected original breeder register, genotype assay or complete individual parent-fish mating ledger is available.
  • Source attribution and the historical year should not be interpreted as confirmed first retail sale date or authentication of present-day fish.
  • External catalogue images are not republished without separately verified copyright/reuse permission.

Related profiles and lineages

Original research sources

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