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Species
Heterandria patruelis Baird & Girard, 1853
IUCN
NCBI
EOL Text
U.S.A. and Mexico, introduced widely elsewhere.
Non-Migrant: Yes. At least some populations of this species do not make significant seasonal migrations. Juvenile dispersal is not considered a migration.
Locally Migrant: No. No populations of this species make local extended movements (generally less than 200 km) at particular times of the year (e.g., to breeding or wintering grounds, to hibernation sites).
Locally Migrant: No. No populations of this species make annual migrations of over 200 km.
Barcode of Life Data Systems (BOLDS) Stats
Public Records: 13
Specimens with Barcodes: 34
Species With Barcodes: 1
Comments: Gambusia holbrooki from east of the Mobile River formerly was regarded as a subspecies of G. affinis; holbrooki was elevated to full species status by Wooten et al. (1988); this change was adopted in the 1991 AFS checklist (Robins et al. 1991). Page and Burr (1991) retained holbrooki as a subspecies of affinis, noting intergradation in the Mobile Bay basin. Gambusia affinis apparently hybridizes/intergrades with G. holbrooki in some sites in the Chattahoochee and Savannah river drainages (Lydeard et al. 1991).
Member of subgenus Arthrophallus, affinis species group (Rauchenberger 1989). See Rauchenberger (1989) for a study of the interrelationships of the subgenera and species groups within the genus Gambusia. Some southwestern populations of G. affinis were regarded as a distinct species, G. specioisa, by Rauchenberger (1989); Robins et al. (1991) viewed them as, at most, a subspecies of affinis.
License | http://creativecommons.org/licenses/by-nc/3.0/ |
Rights holder/Author | NatureServe |
Source | http://explorer.natureserve.org/servlet/NatureServe?searchName=Gambusia+affinis |
Dorsal spines (total): 0; Dorsal soft rays (total): 7 - 9; Analspines: 0; Analsoft rays: 9 - 10
License | http://creativecommons.org/licenses/by-nc/3.0/ |
Rights holder/Author | Rainer Froese, FishBase |
Source | http://www.fishbase.org/summary/SpeciesSummary.php?id=3215 |
Potamodromous. Migrating within streams, migratory in rivers, e.g. Saliminus, Moxostoma, Labeo. Migrations should be cyclical and predictable and cover more than 100 km.
License | http://creativecommons.org/licenses/by-nc/3.0/ |
Rights holder/Author | Rainer Froese, FishBase |
Source | http://www.fishbase.org/summary/SpeciesSummary.php?id=3215 |
Red List Criteria
Year Assessed
Assessor/s
Reviewer/s
Contributor/s
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | International Union for Conservation of Nature and Natural Resources |
Source | http://www.iucnredlist.org/apps/redlist/details/166562 |
Length: 6 cm
Inhabits standing to slow-flowing water; most common in vegetated ponds and lakes, backwaters and quiet pools of streams (Ref. 5723). Most abundant in lower reaches of streams (Ref. 44091). Frequents brackish water. Feeds on insects, zooplankton and detritus. Used as live food for carnivorous aquarium fishes (Ref. 5723).
License | http://creativecommons.org/licenses/by-nc/3.0/ |
Rights holder/Author | Pascualita Sa-a, FishBase |
Source | No source database. |