Philippines country information

Common names: Isdang canal
Occurrence: introduced
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Alvin Seale brought 24 individuals of this fish to Manila from Honolulu, Hawaii, to be used to control mosquito (Ref. 6348). Recorded from Candaba Swamp and Pampanga River (Ref. 109918). Known from Bombon (=Taal) lake (Ref. 12165). Also Ref. 6346, 6348 and 12157.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/rp.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Juliano, R.O., R.D. Guerrero III and I. Ronquillo, 1989
National Database:

Common names from other countries

Gambusie, Western mosquitofish, Western mosquitofish, ... more

Classificatie / Names Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | 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 Ecologie

; zoet water; brak water benthopelagisch; pH range: 6.0 - 8.0; dH range: 5 - 19; potamodroom. Subtropical; 12°C - 29°C (Ref. 52055); 42°N - 26°N

Verspreiding Landen | FAO regio's | Ecosystemen | Voorkomen | Point map | Introducties | 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.

Grootte / Gewicht / Leeftijd

Maturity: L_m ? range ? - ? cm
Max length : 5.1 cm TL mannelijk / geslacht onbekend; (Ref. 50932); 7.0 cm TL (female); common length : 3.9 cm TL mannelijk / geslacht onbekend; (Ref. 12193); max. gerapporteerde leeftijd: 3.00 Jaren (Ref. 796)

Korte beschrijving Morfologie | Morfometrie

Dorsale stekels (totaal): 0; Dorsale zachte stralen (totaal): 7-9; Anale stekels 0; Anale zachte stralen: 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.

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).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

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).

Hoofdreferentie Upload your references | Referenties | Coördinator | Medewerkers

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)

Status op de Rode Lijst van het IUCN (Ref. 130435)

Niet bedreigd (LC) ; Date assessed: 22 January 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

Potential pest

Gebruik door de mens

Visserij: van minder commercieel belang; Aquarium: Commercieel

FAO(Publication : search) | FishSource |

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Estimates based on models

Fylogenetische diversiteitsindex (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).

Trofisch niveau (Ref. 69278): 3.1 ±0.2 se; based on diet studies.

Weerstandsvermogen (Ref. 120179): Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (K=1.20; tmax=3; Fec=10-60).

Fishing Vulnerability (Ref. 59153): Moderate vulnerability (38 of 100).

Prijsklasse (Ref. 80766): Unknown.

Gambusia affinis (Baird & Girard, 1853)