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The Gambusia genus gathers about 45 species of small fishes colonizing freshwater. Since the earliest 20th century, it gained great interest in counteracting infections transmitted by mosquito flies. This paper reappraises the biology of species of Gambusia inhabiting oases and arid regions in Tunisia. Gambusia affinis and Gambusia holbrooki are two species encountered in southern Tunisia. Previous studies revealed their efficacy in eradicating many infectious diseases including malaria, but their biology and interest in oasian and semi-arid ecosystems are scarcely studied. Thus, deep investigations are envisaged to better understand the interest of these species in arid regions.
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Ghouil et al. (2025) studied this question.
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