"Colour proves the species or purity of a line"
Use the complete answer. A verdict without its boundary and next action can become another myth.
What is supported
colour and pattern are observable phenotypes that can be recorded and graded under a method.
What is not established
one photograph or trade label proves species, genotype, pedigree, relatedness, hybrid status or genetic purity.
What to do next
preserve scientific-name claim, identification basis, seller label, source, grade and provenance separately. Use the identity guide.
Exact evidence trace
This is the selected claim-level trace, not every source used by the broader guide. Roles describe how each record is used here; they are not quality grades.
Evidence records
- interpretive context Population dynamics of Neocaridina davidi in the thermally polluted Gillbach stream: Population identity requires evidence beyond visible aquarium color.
- direct support A revision of the Caridina serrata species group, with descriptions of five new species (Crustacea: Decapoda: Caridea: Atyidae): Shows that specimen-based taxonomic revision can overturn a historical genus label.
- limitation context Barcoding of ornamental freshwater shrimp, Neocaridina denticulata (De Haan, 1844) from the aquatic ornamental market in Purbalingga, Central Java, Indonesia: A short mitochondrial market-stock record does not establish pedigree, purity or all species alternatives.
Supporting authorities
- Neocaridina davidi (Bouvier, 1904), AphiaID 1579333: Supplies the maintained accepted-name database role without identifying a photographed animal.
- Cherry Shrimp Neocaridina davidi (Bouvier 1904): Provides a bounded secondary species overview rather than line ancestry.
Named open questions
- How do named aquarium colour lines segregate in F1, F2 and backcross generations? Molecular pigment studies do not provide inheritance ratios for trade lines, and seller charts are not pedigrees.
Inspect the broader guide evidence dossier for all records, authorities, gaps, searches and changes connected to the practical guide.
Share the complete answer
Open the plain-text answer or open the original teaching card.
The detailed guide owns the evidence and limitations. Challenge this claim with a stable source if an important boundary is missing or stale.