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Gambusia holbrooki Girard, 1859

Eastern mosquitofish
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Image of Gambusia holbrooki (Eastern mosquitofish)
Gambusia holbrooki
Female picture by Delgado Saez, J.A.


Kenya country information

Common names: Eastern mosquito fish
Occurrence: introduced
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Introduced and known from Athi River (Ref. 52331), Tana River (Ref. 52331), Lake Victoria drainage (Ref. 52331) and maybe also Lake Naivasha (Ref. 52331). It is introduced for mosquito control in Kenya (Ref. 52331).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ke.html
National Fisheries Authority: http://www.recoscix.org/openscrn.htm
Occurrences: Occurrences Point map
Main Ref: Seegers, L., L. De Vos and D.O. Okeyo, 2003
National Database:

Common names from other countries

Classificação / Names Nomes comuns | Sinónimos | Catalog of Fishes(Género, Espécies) | 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 Ecologia

; Água doce; estuarina bentopelágico; pH range: 6.0 - 8.8; dH range: ? - 40; potamódromo (Ref. 51243).   Subtropical; 15°C - 35°C (Ref. 13371); 40°N - 31°N, 89°W - 74°W

Distribuição Países | Áreas FAO | Ecossistemas | Ocorrências | Point map | Introduções | 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).

Tamanho / Peso / Idade

Maturity: Lm ?  range ? - ? cm
Max length : 4.7 cm TL macho/indeterminado; (Ref. 59105); 8.0 cm TL (female); Idade máx. registada: 1.00 anos (Ref. 126182)

Descrição breve Chaves de identificação | Morfologia | Morfometria

Espinhos dorsais (total) : 1; Raios dorsais moles (total) : 7; Espinhos anais: 1; Raios anais moles: 9.

Biologia     Glossário (ex. 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 | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas

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).

Referência principal Upload your references | Referências | Coordenador | 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)

Categoria na Lista Vermelha da IUCN (Ref. 130435)

  Preocupação menor (LC) ; Date assessed: 06 February 2012

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para o homem

  Potential pest (Ref. 12257)




Utilização humana

Pescarias: espécies comerciais; Aquário: Espécies comerciais
FAO(Publication : search) | FishSource |

Mais informação

Trophic ecology
Itens alimentares
Diet compositions
Food consumptions
Food rations
Predadores
Ecology
Ecologia
Home ranges
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Frequência de comprimento
Mass conversions
Recruitments
Abundances
Life cycle
Reprodução
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larvas
Dinâmica larvar
Anatomy
Gill areas
Cérebros
Outras referências
Physiology
Body compositions
Nutrients
Oxygen consumptions
Tipo de natação
Swimming speeds
Visual pigment(s)
Sons de peixes
Diseases / Parasites
Toxicities (LC50s)
Genetics
Genética
Electrophoreses
Heritabilities
Human related
Aquaculture systems
Perfis para aquacultura
Estirpes
Ciguatera cases
Stamps, coins, misc.
Outreach
Colaboradores
References
Referências

Ferramentas

Relatórios especiais

Descarregue XML

Fontes da 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).
Nível Trófico (Ref. 69278):  3.1   ±0.2 se; based on diet studies.
Resiliência (Ref. 120179):  Elevada, tempo mínimo de duplicação da população menor que 15 meses (tm<1; multiple spawning per year).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).
Categoria de preço (Ref. 80766):   Unknown.