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Volume one of a new series of Diatom Monographs vol.2 due in June 2002 Standing orders are invited.
Globally growing demand of energy and mineral resources, reliable future projection of climate processes and the protection of coasts to mitigate the threats of disasters and hazards require a comprehensive understanding of the structure, ongoing processes and genesis of the marine geosphere. Beyond the “classical” research fields in marine geology in current time more general concepts have been evolved integrating marine geophysics, hydrography, marine biology, climatology and ecology. As an umbrella the term “marine geosciences” has been broadly accepted for this new complex field of research and the solutions of practical tasks in the marine realm. The “Encyclopedia of Marine Geosciences” comprises the current knowledge in marine geosciences whereby not only basic but also applied and technical sciences are covered. Through this concept a broad scale of users in the field of marine sciences and techniques is addressed from students and scholars in academia to engineers and decision makers in industry and politics.
Surveys the tectonic evolution of the Antarctic crust and the palaeoenvironmental evolution of Antarctica since the Late Mesozoic.
This Beiheft of Nova Hedwigia features twenty contributions by more than 40 authors, representing the entire range of Prof. Le Cohu's work and interests. Topics of the contributions range from purely taxonomic papers to articles dealing with diatom biodiversity, ecology, paleoecology and biogeography. The papers apply both traditional and novel techniques. They describe more than 20 new species (high quality SEM images) and three new genera and several taxa are revised. Geographically, the contributions to this volume span a a wide region, from the part of France, where Ren� le Cohu started his research, to the sub-Antarctic Kerguelen Islands from where he has described a great number of species. This Beiheft is dedicated to Prof. Dr. Ren� Le Cohu on the occasion of his 80th birthday, in recognition of his life-long scientific work on the taxonomy and ecology of algae, and diatoms in particular. It addresses phycologists and other researchers working on diatoms and algae.
Diatoms are an important element of many polar marine microbial communities and particularly abundant in Antarctic lakes. However, few comprehensive studies, such as the study presented in this volume are available on Antarctic communities. The diatom floras encountered in surface sediment samples from 33 lakes of the Vestfold Hills, Antarctica are presented. 67 distinct diatom species were identified in these sediments. They include cosmopolitan, Southern Ocean, endemic Antarctic and new diatoms. Each species encountered is described and illustrated; autecological information on the species is included where possible. Epilimnion water chemistry of the lakes sampled was determined to investigate their influence on diatom distribution. The studied lakes span a very large range of salinities from 0.5 to 165 permil. The authors show that salinity seems to have a strong influence on the observed diatom taxa.