Xiphophorus variatus (Meek, 1904)
Variable platyfish
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Xiphophorus variatus
Picture by Artigas Azas, J.M.
Pictures | Google image
Picture by Artigas Azas, J.M.
Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Cyprinodontiformes (Rivulines, killifishes and live bearers) > Poeciliidae (Poeciliids) > Poeciliinae
Etymology: Xiphophorus: Greek, xiphos = sword + Greek, pherein = to carry (Ref. 45335).
Etymology: Xiphophorus: Greek, xiphos = sword + Greek, pherein = to carry (Ref. 45335).
Environment / Climate / Range Ecology
Freshwater; benthopelagic; pH range: 7.0 - 8.0; dH range: 9 - 19; non-migratory. Subtropical; 15°C - 25°C (Ref. 1672); 25°N - 20°N
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 7.0 cm TL male/unsexed; (Ref. 5723); common length : 3.9 cm TL male/unsexed; (Ref. 12193)
Max length : 7.0 cm TL male/unsexed; (Ref. 5723); common length : 3.9 cm TL male/unsexed; (Ref. 12193)
Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions | Faunafri
North America: endemic to Mexico from southern Tamaulipas to northern Veracruz. At least one country reports adverse ecological impact after introduction.
Occurs in warm springs, weedy canals and ditches (Ref. 5723). Feeds on worms, crustaceans, insects and plant matter (Ref. 7020). Used for genetic research (Ref. 4537). Aquarium keeping: minimum aquarium size 60 cm (Ref. 51539).
Main reference
Upload your references | References | Coordinator | Collaborators
Rodriguez, C.M., 1997. Phylogenetic analysis of the tribe Poeciliini (Cyprinodontiformes: Poeciliidae). Copeia 1997(4):663-679.
IUCN Red List Status (Ref. 90363)
Threat to humans
Potential pest (Ref. 13686)
Human uses
Aquarium: commercial
FAO(Publication : search) | FisheriesWiki | Sea Around Us
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Aquaculture
Aquaculture profile
Strains
Genetics
Allele frequencies
Heritability
Diseases
Processing
Mass conversion
Tools
Bio-Quiz | E-book | Field guide | Length-frequency wizard | Life-history tool | Point map | Classification Tree
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Internet sources
Alien/Invasive Species database | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | Public aquariums | PubMed | Scirus | SeaLifeBase | Tree of Life | uBio | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record
Estimates of some properties based on empirical models
Phylogenetic diversity index (Ref. 82805): PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01057 (-0.22968 - 0.25082), b=3.11 (2.98 - 3.23), based on LWR estimates for this family-BS (Ref. 93245).
Trophic Level (Ref. 69278): 2.8 ±0.27 se; Based on food items.
Resilience (Ref. 69278): High, minimum population doubling time less than 15 months (tm<1; multiple spawning per year; Fec=100).
Vulnerability (Ref. 59153): Low vulnerability (22 of 100) .