Gambusia affinis, Mosquitofish : fisheries, aquarium

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Gambusia affinis (Baird & Girard, 1853)

Mosquitofish
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Classification / Names Nombres comunes | Sinónimos | Catalog of Fishes(Género, Especie) | ITIS | CoL | WoRMS | Cloffa

> Cyprinodontiformes (Rivulines, killifishes and live bearers) > Poeciliidae (Poeciliids) > Poeciliinae
Etymology: Gambusia: Gambusia: From the Cuban term, Gambusino, which means "nothing", usually in the context of a joke or a farce. Fishing for gambusinos = when one catches nothing (Ref. 45335);  affinis: From the Latin word affinusmeaning related (Ref. 79012).
More on authors: Baird & Girard.

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

; agua dulce; salobre bentopelágico; pH range: 6.0 - 8.0; dH range: 5 - 19; potamodromo. Subtropical; 12°C - 29°C (Ref. 52055); 42°N - 26°N

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

North and Central America: Mississippi River basin from central Indiana and Illinois in USA south to Gulf of Mexico and Gulf Slope drainages west to Mexico. One of the species with the widest range of introductions which acquired for itself a near pan-global distribution (Ref. 1739). Several countries report adverse ecological impact after introduction.

Tamaño / Peso / Age

Maturity: Lm ?  range ? - ? cm
Max length : 5.1 cm TL macho / no sexado; (Ref. 50932); 7.0 cm TL (female); common length : 3.9 cm TL macho / no sexado; (Ref. 12193); edad máxima reportada: 3.00 años (Ref. 796)

Short description Morfología | Morfometría

Espinas dorsales (total): 0; Radios blandos dorsales (total): 7-9; Espinas anales 0; Radios blandos anales: 9 - 10. Origin of dorsal fin opposite 7th anal ray. Length of anal base much less than half distance from caudal. 8 horizontal scale rows between back and abdomen. Ventrals terminate immediately before anal fin. Pelvic fins reach ventrals.

Biología     Glosario (por ej. epibenthic)

Most abundant in lower reaches of streams (Ref. 44091). Adults inhabit standing to slow-flowing water; most common in vegetated ponds and lakes, backwaters and quiet pools of streams. Found frequently in brackish water (Ref. 5258). Pelagic and surface predatory fish (Ref. 94816). Feed on zooplankton, small insects and detritus (Ref. 5258, 10294). Used as live food for carnivorous aquarium fishes. Viviparous (Ref. 5258, 30578). Effective in mosquito control and widely introduced, but found to compete with indigenous fish and to upset the ecological balance (Ref. 6351).

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

The species is viviparous (Ref. 5258). Internal fertilization is possible because the anal fin of the male is modified into a copulatory organ. The females carries about 30 alevins and gestation lasts for a period of 24 days (Ref. 6348) to a month (Ref. 30578).

Main reference Upload your references | Referencias | Coordinador | Colaboradores

Page, L.M. and B.M. Burr, 1991. A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p. (Ref. 5723)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 22 January 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Potential pest





Human uses

Pesquerías: escaso valor comercial; Acuario: Comercial
FAO - Publication: search | FishSource |

Más información

Age/Size
Crecimiento
Length-weight
Length-length
Length-frequencies
Morfometría
Morfología
Larva
Dinámica larvaria
Reclutamiento
Abundancia
BRUVS
Referencias
Acuicultura
Perfil de acuicultura
Razas
Genética
Electrophoreses
heritabilidad
Enfermedades
Procesamiento
Nutrients
Mass conversion
Colaboradores
Imágenes
Stamps, Coins Misc.
Sonidos
Ciguatera
Velocidad
Tipo de natación
Superficie branquial
Otolitos
Cerebros
Visión

Herramientas

Special reports

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Fuentes de Internet

AFORO (otoliths) | Alien/Invasive Species database | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: Género, Especie | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | GoMexSI (interaction data) | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Bases de datos nacionales | Otolith Atlas of Taiwan Fishes | Acuarios públicos | PubMed | Reef Life Survey | Socotra Atlas | Árbol de la vida | Wikipedia: Go, búsqueda | World Records Freshwater Fishing | Expediente Zoológico

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00851 (0.00691 - 0.01048), b=3.13 (3.07 - 3.19), in cm total length, based on LWR estimates for this species (Ref. 93245).
Nivel trófico (Ref. 69278):  3.1   ±0.2 se; based on diet studies.
Generation time: 1.4 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
Resiliencia (Ref. 120179):  Medio, población duplicada en un tiempo mínimo de 1.4-4.4 años (K=1.20; tmax=3; Fec=10-60).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (38 of 100).
Price category (Ref. 80766):   Unknown.