[Content of the digestive tract of 4 authoctonous species of fishes and their implications as boiregulators of mosquito larvae in Venezuela].
The content of the digestive tract of 4 authoctonous species of fishes that presented characteristics of larvivorous fishes was analyzed. It was found that 28% of the caught specimens of Aequidens pulcher presented in their gastrointestinal content residues of larvae and pupae of mosquitoes combined with other food, and that 26 5 has only larvae and pupae. In Aequidens coeruleopunctatus, 6 % of their content was larvae and pupae with other food, whereas 10% had only larvae and pupae. 56% of the Poecilia caucana specimens had larvae and pupae with other food, and 34% only larvae and pupae. Poecilia reticulata contained larvae and pupae with other food in 62% and 33% only had larvae and pupae. These results show an effective bioregulator activity in these fishes identified as larvivorous under natural conditions.
Rojas
Janeth Elizabeth
JE
Universidad de Carabobo, Instituto de Medicina Tropical "Pedro Kourí". ciipk@ipk.sld.cu
Soca
Lázaro Alain
LA
García
Giraldo Israel
GI
D000818:Animals; D023681:Cichlids / Q000502:physiology*; D005247:Feeding Behavior; D007303:Insect Vectors; D007814:Larva; D009032:Mosquito Control; D010572:Pest Control, Biological; D011036:Poecilia / Q000502:physiology*; D011679:Pupa; D014687:Venezuela