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Do direct experiments establish combined GH, KH, pH and conductivity optima for Neocaridina?
This record shows how a current Neocaridina evidence gap was searched. It supports a dated statement about this search, not proof that no unlocated study exists.
- Reviewed
- August 12, 2026
- Next review
- February 12, 2027
- Candidate decisions
- 2
- Governed gaps
- 1
Search scope
Taxon names: Neocaridina davidi, Neocaridina heteropoda, Neocaridina denticulata sinensis.
Concepts: hardness, GH, KH, pH, conductivity, growth, reproduction.
Search surfaces: publisher and DOI records, PubMed, scholarly web indexes, full-text repositories.
Exact queries
Neocaridina davidi hardness pH conductivity experiment growth reproduction"Neocaridina heteropoda" water hardness GH KH experiment"Neocaridina denticulata sinensis" pH salinity water quality growth
Candidate-source decisions
Life-history traits and ecological characteristics of the ornamental shrimp Neocaridina denticulata, recently introduced into the freshwater systems of Israel
Adds field occurrence and laboratory culture conditions, but neither was an assigned water-parameter optimum experiment.
Effect of temperature on biochemical composition, growth and reproduction of the ornamental red cherry shrimp
Varies temperature while water chemistry remains context, so it cannot identify a GH, KH, pH or conductivity optimum.
Search outcome
The occurrence boundary is broader, but no replicated factorial water-parameter optimum study was located. Field ranges and culture values remain contexts rather than targets.
Knowledge gaps governed by this search
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Submit a stable source, missed search surface or correction. A candidate is not added to biological evidence until its methods and claim boundary pass review.