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Gambusia holbrooki Girard, 1859

Eastern mosquitofish
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Gambusia holbrooki
Female picture by Delgado Saez, J.A.


Bulgaria country information

Common names: [No common name]
Occurrence: introduced
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Status: Bart Adriaenssens pers. comm. Oct. 28, 2002.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/bu.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Mikhov, S., 2000
National Database:

Common names from other countries

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).
  More on author: Girard.

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

; agua dulce; salobre bentopelágico; pH range: 6.0 - 8.8; dH range: ? - 40; potamodromo (Ref. 51243).   Subtropical; 15°C - 35°C (Ref. 13371); 40°N - 31°N, 89°W - 74°W

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

Introduced worldwide in tropical and subtropical countries. North America: Atlantic and Gulf Slope drainages from New Jersey south to Alabama in USA (Ref. 5723). Established throughout southern Europe (Ref. 59043). Introduced for mosquito control, but had rare to non-existing effects on mosquitoes, and negative to perhaps neutral impact on native fishes (Ref. 12217).

Tamaño / Peso / Age

Maturity: Lm ?  range ? - ? cm
Max length : 4.7 cm TL macho / no sexado; (Ref. 59105); 8.0 cm TL (female); edad máxima reportada: 1.00 años (Ref. 126182)

Short description Claves de identificación | Morfología | Morfometría

Espinas dorsales (total) : 1; Radios blandos dorsales (total) : 7; Espinas anales: 1; Radios blandos anales: 9.

Biología     Glosario (por ej. epibenthic)

Adults occur in standing to slow-flowing water, mostly in vegetated ponds and lakes, backwaters and quiet pools of steams (Ref. 5723), typically seen shoaling at the edges (Ref. 44894). They also frequent brackish water (Ref. 5723). Adults feed on small terrestrial insects usually in the drift and amongst aquatic plants, actively selecting very small prey (Ref. 6154). Also observed to take in mosquito larvae (Ref. 41168). Introduced worldwide. Introductions to Europe have seriously threatened many endemic species (Ref. 59043). It is now widely accepted that their effect has been minimal and even may have exacerbated the problem due to their voracious appetite for natural invertebrate predators of mosquito larvae (Ref. 44894).

Life cycle and mating behavior Maturities | Reproducción | Spawnings | Egg(s) | Fecundities | Larva

Matures at 4-6 weeks; 3 generations can be produced in one year. Gestation lasts 3-4 weeks. Brood may reach up to 354 young, but is generally around 40-60 (Ref. 1672, 59043).

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: 06 February 2012

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Potential pest (Ref. 12257)




Human uses

Pesquerías: comercial; Acuario: Comercial
FAO(Publication : search) | FishSource |

Más información

Trophic ecology
componentes alimenticios
Diet compositions
Food consumptions
Food rations
Despredadores
Ecology
Ecología
Home ranges
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances
Life cycle
Reproducción
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larva
Dinámica larvaria
Anatomy
Gill areas
Cerebros
Otolitos
Physiology
Body compositions
Nutrients
Oxygen consumptions
Tipo de natación
Swimming speeds
Visual pigment(s)
Sonidos de peces
Diseases / Parasites
Toxicities (LC50s)
Genetics
Genética
Electrophoreses
Heritabilities
Human related
Aquaculture systems
Perfiles de acuicultura
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Ciguatera cases
Stamps, coins, misc.
Outreach
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References
Referencias

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Fuentes de Internet

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=0.01000 (0.00807 - 0.01239), b=3.19 (3.13 - 3.25), 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.
Resiliencia (Ref. 120179):  Alto, población duplicada en un tiempo mínimo inferior a 15 meses (tm<1; multiple spawning per year).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).
Price category (Ref. 80766):   Unknown.