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Gambusia affinis (Baird and Girard, 1853)
MOSQUITOFISH
Western Mosquitofish; Mosquito Fish

Life   Vertebrata   Fish   Poeciliidae   Gambusia


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You have requested an unaccepted/invalid name entry, the corresponding accepted/valid name is presented here as the result.
 
Kingdom Animalia  
 Phylum Chordata  
 Class Actinopterygii  
 Order Cyprinodontiformes  
 Family Poeciliidae  
 Genus Gambusia  
  Gambusia affinis    (Baird & Girard, 1853) 
Provider: Tseng, Chin-Tsian 
hierarchy tree    download xml    download txt    Chinese Page    
Synonyms: Fundulus inurus Gambusia affinis affinis Gambusia affinis katruelis Gambusia gracilis Gambusia humilis Gambusia marschi Gambusia marshi Gambusia patruelis Gambusia senilis Gambusia sp. Haplochilus melanops details
Citation: 臺灣魚類誌(沈等, 1993); 臺灣淡水及河口魚類誌(陳及方, 1999)
Character: Head moderately large, broad and horizontal dorsally. Snout short. Eye large, on side of head. Mouth protractile, oblique; posterior of jaw distant from anterior margin of eye. Body elongated, slightly cylindrical and posterior laterally compressed; dorsal profile horizontal, ventral profile arched to end of anal fin. Scales large; longitudinal scales:29-32; predorsal scales:16-17. Dorsal soft rays:7-9; pectoral soft rays:12; pelvic soft rays:6; anal soft rays:8-10 (female). Dorsal fin far behind snout, postdorsal length about two times the length of dorsal fin base; pectoral fins reach pelvic fins; dorsal fin origin slightly behind pelvic fin origin; pelvic fin origin close to middle between snout tip and caudal peduncle end; anal fin rounded. Brownish or grayish, slightly transparent; darker dorsally and grayish white ventrally. 
Habitat: Prefers standing to slow running water, can be found in ponds, paddy fields and slow moving reaches of river, especially vegetated environments. Highly tolerant to low dissolved oxygen and pollution in water. The third, forth and fifth anal fin rays of ma 
Distribution: Northern and Central America. Introduced to Taiwan in 1913, can be found in whole island of Taiwan. 
Name Code: 381033
  IUCN Red List:LC       Invasive     
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http://www.fishbase.org/Summary/speciesSummary.php?genusname=Gambusia&speciesname=affinis ---> https://www.fishbase.se/Summary/speciesSummary.php?genusname=Gambusia&speciesname=affinis
https://www.fishbase.se/Summary/speciesSummary.php?genusname=Gambusia&speciesname=affinis ---> https://www.fishbase.se/summary/Gambusia-affinis.html

Common name (e.g. trout)

Genus + Species (e.g. Gadus morhua)

Gambusia affinis (Baird & Girard , 1853)

Mosquitofish Upload your photos  and  videos
Pictures | Google image Image of Gambusia affinis (Mosquitofish) Gambusia affinis
Male picture by Aland, G.

Classification / Names Common names | Synonyms | Catalog of Fishes ( gen. , sp. ) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > 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 affinus meaning related (Ref. 79012 ) .  More on authors: Baird & Girard .

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

Freshwater; brackish; benthopelagic; pH range: 6.0 - 8.0; dH range: 5 - 19; potamodromous.   Subtropical; 12°C - 29°C (Ref. 52055 ); 42°N - 26°N

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | 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.

Size / Weight / Age

Maturity: L m   ?   range ? - ? cm
Max length : 5.1 cm TL male/unsexed; (Ref. 50932 ); 7.0 cm TL (female); common length : 3.9 cm TL male/unsexed; (Ref. 12193 ); max. reported age: 3 years (Ref. 796 )

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 7-9; Anal spines : 0; Anal soft rays : 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.

Biology     Glossary (e.g. 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 Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

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 | References | Coordinator | Collaborators

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. 120744 )

  Least Concern (LC)  ; Date assessed: 03 February 2012

CITES (Ref. 118484 )

Not Evaluated

CMS (Ref. 116361 )

Not Evaluated

Threat to humans

  Potential pest




Human uses

Fisheries: minor commercial; aquarium: commercial FAO(Publication : search ) | FishSource |

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Internet sources

Alien/Invasive Species database | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes ( gen. , sp. ) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank( genome , nucleotide ) | GloBI | GoMexSI (interaction data) | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | National databases | Otolith Atlas of Taiwan Fishes | Public aquariums | PubMed | Reef Life Survey | Tree of Life | Wikipedia( Go , Search ) | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82805 ):  PD 50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high]. Bayesian length-weight: a=0.00794 (0.00636 - 0.00991), b=3.11 (3.05 - 3.17), 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. Generation time: 1.4 ( na - na) years. Estimated as median LN(3)/K based on 2 growth studies. Resilience (Ref. 120179 ):  Medium, minimum population doubling time 1.4 - 4.4 years (K=1.20; tmax=3; Fec=10-60). Vulnerability (Ref. 59153 ):  Moderate vulnerability (38 of 100) . Price category (Ref. 80766 ):   Unknown .

Entered by Froese, Rainer Modified by Reyes, Rodolfo B. Fish Forum
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Updated: 2020-04-09 11:12:00 gmt
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