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Xenurolebias myersi (Carvalho, 1971)

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Xenurolebias myersi
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Classification / Names Nombres comunes | Sinónimos | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterígios (peces con aletas radiadas) > Cyprinodontiformes (Rivulines, killifishes and live bearers) > Rivulidae (Rivulines)

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

; agua dulce bentopelágico; pH range: 6.0 - 6.8; dH range: 8 - ?; no migratorio.   Tropical; 23°C - 28°C (Ref. 13614)

Distribución Países | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Point map | Introducciones | Faunafri

South America: Atlantic coastal river basins in Brazil.

Tamaño / Peso / Age

Maturity: Lm ?  range ? - ? cm
Max length : 6.0 cm TL macho / no sexado; (Ref. 36579)

Short description Morfología | Morfometría

Radios blandos dorsales (total): 12-18; Radios blandos anales: 19 - 23; Vértebra: 28 - 29. Xenurolebias myersi differs from all other congeners by having the caudal fin sub-lanceolate, never forming a distinctive tip posteriorly in larger individuals (vs. lanceolate, with a pronounced posterior tip) and distinctive light yellow spots on the distal portion of the anal fin in males (vs. light yellow narrow bars). It is also distinguished from X. cricarensis and X. izecksohni in having fewer dark brown bars on the caudal fin in males (4-6, vs. 7-10 in X. cricarensis and 9-12 in X. izecksohni); from X. izecksohni by having fewer dark grey bars on the flank in females (9-11 vs. 12-13), the dorsal fin, in males, with short light bars on the basal portion and small round light spots on the distal portion (vs. branching bars), absence of oblique short bars on the ventral portion of the caudal fin in males (vs. presence), deeper body (29.0-31.4% SL in males and 30.1-33.9% in females, vs. 27.1-28.5% and 28.5-30.6%, respectively), and longer lower jaw (22.4-24.5% of head length in males and 19.6-21.4% iin females, vs. 18.6-20.9% and 17.7-19.7%, respectively); and from X. pataxo in having wider head (71.5-74.6% SL in males and 74.5-81.1% in females, vs. 65.7-71.1% and 65.8-70.3%, respectively), shorter filaments on the dorsall fin in males (reaching between base and middle of the caudal fin, vs. reaching posterior portion of the caudal fin), and the presence of black spots on the posterior part of the caudal peduncle in females (vs. absence) (Ref. 96072).

Biología     Glosario (por ej. epibenthic)

Found in seasonal pools as well as river floodplains (Ref. 96072). Bottom spawner, 4 months incubation. Is difficult to maintain in aquarium (Ref. 27139).

Life cycle and mating behavior Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva

Main reference Upload your references | Referencias | Coordinador : Costa, Wilson J.E.M. | Colaboradores

Costa, W.J.E.M. and P.F. Amorim, 2014. Integrative taxonomy and conservation of seasonal killifishes, Xenurolebias (Teleostei: Rivulidae), and the Brazilian Atlantic forest. Systematic and Biodiversity (Ref. 96072)

IUCN Red List Status (Ref. 119314)


CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Acuario: Comercial
FAO(Publication : search) | FishSource |

Más información

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Ecología
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componentes alimenticios
consumo de alimento
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Madurez
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Fecundidad
Huevos
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Age/Size
Crecimiento
Length-weight
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Morfometría
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heritabilidad
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Fuentes de Internet

Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | SeaLifeBase | Árbol de la vida | Wikipedia(Go, búsqueda) | World Records Freshwater Fishing | Expediente Zoológico

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5625   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00891 (0.00396 - 0.02008), b=3.14 (2.94 - 3.34), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Nivel trófico (Ref. 69278):  3.2   ±0.4 se; Based on size and trophs of closest relatives
Resiliencia (Ref. 69278):  Alto, población duplicada en un tiempo mínimo inferior a 15 meses (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Low vulnerability (10 of 100) .