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

Holbrook's mosquitofish, Eastern gambusia, Eastern mosquito fish, ... more

Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | 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 Ökologie

; süßwasser; brackwasser benthopelagisch; pH range: 6.0 - 8.8; dH range: ? - 40; potamodrom (Ref. 51243). Subtropical; 15°C - 35°C (Ref. 13371); 40°N - 31°N, 89°W - 74°W

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | 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).

Size / Gewicht / Alter

Maturity: L_m ? range ? - ? cm
Max length : 4.7 cm TL Männchen/unbestimmt; (Ref. 59105); 8.0 cm TL (female); max. veröff. Alter: 1.00 Jahre (Ref. 126182)

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

Rückenflossenstacheln (insgesamt) : 1; Rückenflossenweichstrahlen (insgesamt) : 7; Afterflossenstacheln: 1; Afterflossenweichstrahlen: 9.

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 | Fortpflanzung | Spawnings | Egg(s) | Fecundities | Larven

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).

Hauptreferenz Upload your references | Referenzen | Koordinator | Partner

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 Rote Liste Status (Ref. 130435)

nicht bedroht (LC) ; Date assessed: 06 February 2012

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Potential pest (Ref. 12257)

Nutzung durch Menschen

Fischereien: kommerziell; Aquarium: Kommerziell

FAO(Publication : search) | FishSource |

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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).

Trophic level (Ref. 69278): 3.1 ±0.2 se; based on diet studies.

Widerstandsfähigkeit (Ref. 120179): hoch, Verdopplung der Population dauert weniger als 15 Monate. (tm<1; multiple spawning per year).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Preiskategorie (Ref. 80766): Unknown.

Gambusia holbrooki Girard, 1859