mahi sefid (cyprinidae) is an economically important fish in the south caspian sea. specimens was collected from the lamir river, sefid rud, shir rud and tajan rivers and analyzed at 38 microsatellite dna loci. eight primers out of the thirty analyzed loci were polymorphic in all sampling regions. the highest observed heterozygosity (1) was in locus ca1 in sefid rud and lowest was 0.07 in locus...

s for these talks are published in the GSA Abstracts With

It was found that the build-up of simuliid numbers subsequent to the construction of dams in the Vaal and Orange Rivers could be successfully prevented by periodic, artificially controlled reductions in the water-levels in these rivers.

following the collapse of the soviet :union: and independence of former soviet :union:republics, previous economic relations among centralasianrepublics changed and were replaced with the market economy. tensions have emerged between upstream and downstream countries located along transboundary rivers with downstream countries even resorting to threat of military action against possible restric...