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Changes in media composition were monitored during conditioning by B. tropicus, B. truncatus, B. globosus and Biomphalaria glabrata maintained under a...
Read moreThe effects of the following perturbations on populations of freshwater gastropods from a drainage channel in the Southeast area of Lewes Brooks, East...
Read moreThe population dynamics of Biomphalaria pfeifferi were studied at 4 river sites in the Zimbabwe highveld for periods of 4 to 28 months during 1986 to ...
Read moreThe distribution of aquatic macrophytes and of molluscan intermediate hosts of schistosomes in the following irrigation systems in the Sudan: the Gezi...
Read moreTwo cichlid fish were studied under semi-natural conditions to evaluate their potential as agents for the biological control of schistosome intermedia...
Read moreIn order to evaluate the potential of H. duryi to establish populations in schistosomiasis endemic areas, the response of H. duryi to calcium concentr...
Read morePart of a drainage channel was treated with cyanatryn at 0.2 mu g/g. Release of the herbicide was slower than expected. A peak concn. of 0.1 mu g/g wa...
Read moreSediments accumulate chemicals that can be toxic to biota and often contribute to aquatic ecosystem decline. Measuring mortality in laboratory-bred or...
Read moreHelisoma duryi has been suggested as a biological control agent against the snail intermediate hosts of schistosomes, Biomphalaria and Bulinus species...
Read moreThe effects of increased nutrient and organic loading on a community dominated by submersed macrophytes and gastropods were investigated in a drainage...
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