Abstract
The larvae of a number of species of mosquitoes in the genus Aedes can survive and complete development in waters ranging in osmotic concentration from distilled water to several times the concentration of seawater. This amazing range of tolerance is achieved by strict hyper-regulation in dilute waters and hyporegulation in concentrated media, such that a fairly constant hemolyph ionic concentration is maintained (Fig. 1a). Larvae of the species Aedes taeniorhynchus are able to survive in seawater which has been concentrated to three times its normal value (Nayar & Sauerman, 1974). Several other species are able to hyporegulate in media with an osmotic concentration two to four times that of the hemolymph (Aedes campestris, Kiceniuk & Phillips, 1974, Bradley & Phillips, 1977a; A. detritus, Beadle, 1939; Ramsay, 1950; A. dorsalis Sheplay & Bradley, 1982; Strange et al, 1982; Aedes togoi, Asakura, 1980; Opifex fuscus, Nicholson, 1972.) Perhaps even more remarkably, a number of species of saline-water mosquito larvae can survive in inland hypersaline ponds where ionic ratios differ substantially from seawater, e.g. ponds rich in NaHCO3 or MgSO4 and Na2SO4 (Fig. 1b) (Kiceniuk & Phillips, 1974; Bradley & Phillips, 1977a; Strange et al, 1982).
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References
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Bradley, T.J., Strange, K., Phillips, J.E. (1984). Osmotic and Ionic Regulation in Saline-Water Mosquito Larvae. In: Pequeux, A., Gilles, R., Bolis, L. (eds) Osmoregulation in Estuarine and Marine Animals. Lecture Notes on Coastal and Estuarine Studies, vol 9. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-45574-2_3
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DOI: https://doi.org/10.1007/978-3-642-45574-2_3
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