Ecology of Gambusia affinis
 
Main Ref. Page, L.M. and B.M. Burr, 1991
Remarks 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).

Aquatic zones / Water bodies

Marine - Neritic Marine - Oceanic Brackishwater Freshwater
Marine zones / Brackish and freshwater bodies
  • supra-littoral zone
  • littoral zone
  • sublittoral zone
  • epipelagic
  • mesopelagic
  • epipelagic
  • abyssopelagic
  • hadopelagic
  • estuaries/lagoons/brackish seas
  • mangroves
  • marshes/swamps
  • rivers/streams
  • lakes/ponds
  • caves
  • exclusively in caves
Highighted items on the list are where Gambusia affinis may be found.

Habitat

Substrate Soft Bottom: silt; mud;
Substrate Ref.
Special habitats
Special habitats Ref.

Associations

Ref.
Associations
Associated with
Association remarks
Parasitism

Feeding

Feeding type mainly animals (troph. 2.8 and up)
Feeding type Ref. Page, L.M. and B.M. Burr, 1991
Feeding habit variable
Feeding habit Ref.
Trophic Level(s)
Estimation method Original sample Unfished population Remark
Troph s.e. Troph s.e.
From diet composition 3.07 0.15 3.03 0.11 Troph of juv./adults from 3 studies.
From individual food items 3.22 0.41 Trophic level estimated from a number of food items using a randomized resampling routine.
Ref. Mansfield, S. and B.H. Mcardle, 1998
(e.g. 346)
(e.g. cnidaria)
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