Many western limnologists have no or a very limited knowledge and understanding of limnology in the Soviet Union; the language barrier is simply too hermetic, and the threshold for making the effort (and spending the money) for obtaining translations of significant Russian works is usually too high for most Eu­ ropeans and North Americans. There is so much to read aside from that literature printed in the cyrillic al­ phabet that, not by intention or by design, but by sheer inertia, we tend to forget about it altogether. Of course, we are wrong, and we know it. Today, 'Hydrobiologia' is proud to present a theme volume by one of the active Soviet limnologist groups, ably steered by Nikolai Smirnov. Their target lake, Glubokoe ozero, is one of the better studied waters of the northern hemisphere, and the series of contributions included in this collection of papers aims both at illustrating this point and at making this interesting material widely available in a congress language. I am confident that 'Studies on Lake Glubokoe' will make a significant contribution to a well-merited better penetration of Russian science onto the world market. H. 1. Dumont Contents Preface.... ... . . . . . .. . . .. . . . . . .. . .. . . . .. . ... ... . .. . . . . . . . . . . .. . . . . . .. . ... . ... . ..... . . . . V Lake Glubokoe (Moscow region, Eastern Europe), general characteristics by N. N. Smirnov .................................................................... .

Inhalt

Lake Glubokoe (Moscow region, Eastern Europe), general characteristics.- Professor Nikolai Yuryevich Zograf (1852-1920), the founder of the Hydrobiological Station on Lake Glubokoeby.- Hydrochemistry of Lake Glubokoe.- Studies on the background levels of anthropogenic organic substances and their natural analogs in Lake Glubokoe.- Long-term changes in the community of planktonic crustaceans in Lake Glubokoe in relation to predation and competition.- Pelagic rotifers of Lake Glubokoe from 1897 to 1984.- Species composition of Daphnia in Lake Glubokoe with notes on the taxonomy and geographical distribution of some species.- Invertebrates of the littoral zone of Lake Glubokoe.- Benthos of Lake Glubokoe.- Feeding of fish in Lake Glubokoe.- Horizontal distribution of crustaceans in Lake Glubokoe.- The results of hydroacoustic observations on roach in Lake Glubokoe in winter.- Percottus glehniDybowski - a new colonizer in the ichthyofauna of Lake Glubokoe.- On the biology of Amphibia in the ecosystem of Lake Glubokoe.- Trematode larvae in snails of Lake Glubokoe.- History of the zoocenosis of Lake Glubokoe according to animal remains in the bottom sediments.- History of the community of planktonic Cladocera in Lake Glubokoe (Moscow region).- The basic features of the biocenosis of Lake Glubokoe (Moscow region, Eastern Europe) with a list of the animals and plants recorded.