Xenodexia ctenolepis, Grijalva studfish

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Xenodexia ctenolepis Hubbs, 1950

Grijalva studfish
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drawing shows typical species in Poeciliidae.

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Actinopteri (ray-finned fishes) > Cyprinodontiformes (Rivulines, killifishes and live bearers) > Poeciliidae (Poeciliids) > Xenodexiinae
Etymology: Xenodexia: Greek, xenos = strange + Greek, dexia, -as = right hand, right side (Ref. 45335).  More on author: Hubbs.

Environment: milieu / climate zone / depth range / distribution range Ecology

Freshwater; pelagic; pH range: 7.2 - 7.8; dH range: 5 - 15; depth range - m (Ref. ), usually - m (Ref. ).   Tropical; 21°C - 26°C (Ref. 12468)

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Central America: Guatemala in the Finca River basin, 30 km NW of Cóban, Alta Vera Paz, in the Salbá River, tributary to the Negro River (Chixoy River) which becomes the Salinas River of the Usumacinta basin..

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 4.0 cm TL male/unsexed; (Ref. 26130); 4.5 cm (female)

Biology     Glossary (e.g. epibenthic)

Inhabits slow as well as rapid flowing waters. Occurs with two other genera of livebearers, Poecilia and Xiphophorus, depending upon locality.

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Wischnath, L., 1993. Atlas of livebearers of the world. T.F.H. Publications, Inc., United States of America. 336 p. (Ref. 26130)

IUCN Red List Status (Ref. 124695)

  Data deficient (DD) ; Date assessed: 27 March 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

More information

Countries
FAO areas
Ecosystems
Occurrences
Introductions
Stocks
Ecology
Diet
Food items
Food consumption
Ration
Common names
Synonyms
Metabolism
Predators
Ecotoxicology
Reproduction
Maturity
Spawning
Spawning aggregation
Fecundity
Eggs
Egg development
Age/Size
Growth
Length-weight
Length-length
Length-frequencies
Morphometrics
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Larvae
Larval dynamics
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References
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Aquaculture profile
Strains
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Stamps, Coins Misc.
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Ciguatera
Speed
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Gill area
Otoliths
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Tools

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Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.0   ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref. 120179):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Low vulnerability (20 of 100) .