The livebearing largespring gambusia ( " Gambusia geiseri " ) was thought to be ovoviviparous until it was shown in 2001 that the embryos received nutrients from the mother.
32.
The mosquitofish was nominated as an environmental hazard under the NSW Threatened Species Conservation Act in 1999, making it illegal for landowners to do anything that would help spread Gambusia.
33.
A crucial step was introduction in 1925 of the fish " Gambusia affinis " ( mosquitofish ), which feeds on the aquatic larval and pupal stages of mosquitoes.
34.
Effective biocontrol agents include predatory fish that feed on mosquito larvae such as mosquitofish ( " Gambusia affinis " ) and some cyprinids ( carps and minnows ) and killifish.
35.
Mosquitofish have harmed native fish populations in many ways . " Gambusia holbrooki " has been implicated in the decline of at least 9 fish and 10 native frog species.
36.
A : The fish is the Gambusia minnow, described by Ken's Farms in Alapaha, Ga ., as the most widely used fish in the world for mosquito control.
37.
Mosquitofish ( " Gambusia holbrooki " ) can distinguish between doors marked with either two or three geometric symbols, only one of which allows the fish to rejoin its shoalmates.
38.
The main threat to them is perturbation of the habitat, in particular the introduction of predators such as the fishes " Lepomis gibbosus " and " Gambusia affinis ".
39.
The systematics and biology of the poeciliid fish, " Gambusia rhizophorae " with an account of its hybridization with " Gambusia affinis " and " Gambusia punctata ".
40.
The systematics and biology of the poeciliid fish, " Gambusia rhizophorae " with an account of its hybridization with " Gambusia affinis " and " Gambusia punctata ".
