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MEDISAN
On-line version ISSN 1029-3019
Abstract
ARGOTA PEREZ, George and TAMAYO RIVAS, Sheila. Environmental and biological condition factor in the Gambusia punctata and its effects for larval biological control. MEDISAN [online]. 2012, vol.16, n.9, pp. 1378-1384. ISSN 1029-3019.
In this paper the biological condition factor was evaluated in the species Gambusia punctata as an expression of environmental damage of San Juan river in Santiago de Cuba, for which the total length of the fish was related to the total weight. Two study sites were selected in the upper and lower river basins, and samplings were performed during the dry season of 2011. Individuals of both sexes were chosen which biometrically measured between 1.8 and 3.1 cm in total length and 2 class intervals were established. The fishes living in the upper river had higher biological condition factor (0.068 > 0.038). It was concluded that given the values of this factor, the environmental quality of the ecosystem affects the development of the species, which could influence their predatory capacity and therefore as biological control of mosquito larvae.
Keywords : biological condition factor; river; pollution; Gambusia punctata; biological control.