Chrysophytes are beautiful and delicate organisms living mostly in freshwater. They are pivotal for studies of protistan evolution, studies of food web dynamics in oligotrophic freshwater ecosystems, and for assessment of environmental degradation resulting from eutrophication and acid rain. They also represent excellent model cellular systems for studying processes inherent in basic metabolism, biomineralization, endo- and exocytosis and macro-assembly of cell surface layers. This book gives a broad overview of chrysophytes and contains chapters by leading experts organized under the themes...

Paleolimnology is a rapidly developing science that is now being used to study a suite of environmental and ecological problems. This volume is the fourth handbook in the Developments in Paleoenvironmental Research book series. The first volume (Last & Smol, 2001a) examined the acquisition and archiving of sediment cores, chronological techniques, and large-scale basin analysis methods. Volume 2 (Last & Smol, 2001b) focused on physical and chemical methods. Volume 3 (Smol et al., 2001), along with this book, summarize the many biological methods and techniques that are available to study...

Biology Distribution and ecology Taphonomy and preservation Field sampling and coring Laboratory procedures Data analysis and interpretation Summary Acknowledgements References 9. Chrysophyte scales and cysts. B. A. Zeeb & J. P. Smol 203 Introduction Taxonomy and nomenclature Methods Paleolimnological applications Future research directions Summary Acknowledgements References 10. Ebridians. A. Korhola & J. P. Smol 225 Introduction Morphology, taxonomy and preservation in the sediments Methodological aspects Brief history of use of ebridians in palaeoecological research Indicator value and...

Concerns about the effects of global climate change have focused attention on the vulnerability of circumpolar regions. Long-term historical data are needed to better understand the magnitude and direction of environmental change related to both natural and anthropogenic causes, as well as to assess patterns of natural variability. The paucity of instrumental data requires that proxy methods be used. The abundance of lakes throughout the Arctic and Antarctic makes paleolimnological approaches especially powerful tools to assist interpretations of environmental change.

This book...

Chrysophycean algae are a diverse and often abundant group of primarily freshwater phytoplankton, characterized by the endogenous formation of siliceous cysts or stomatocysts (also called statospores or statocysts). Cyst morphology is highly variable, but believed to be species-specific.
Recently, cysts have received considerable attention from phycologists and especially paleoecologists who wish to use these indicators for assessments of environmental change. Nonetheless, attempts at using cysts have often been hampered by taxonomic problems.
This Atlas dispels some of...

Origins of fallout radionuclides Sediment records of fallout radionuclides Simple dating models Vertical mixing Numerical techniques Radiometric techniques Discussion Summary Acknowledgements References 10. chronostratigraphic techniques in paleolimnology. Svante Bjorck & Barbara Wohlfarth 205 Introduction Methods and problems Radiocarbon-dating different fractions of the sediment as a chronostratigraphic tool Dating of long (old) stratigraphies High resolution dating and wiggle matching dating versus absolute dating techniques of lacustrine sediments Concluding remarks Summary Useful www...

Chrysophytes are a diverse and often abundant group of primarily freshwater algae that are characterized by the endogenous formation of siliceous cysts or stomatocysts (also called statospores or statocysts). Cyst morphology is highly variable, but believed to be species-specific. Cysts have continued to receive attention from phycologists and especially paleoecologists, who use these indicators for assessments of environmental change.
In this volume, we have compiled descriptions, using both scanning electron and light microscopy, as well as line drawings, for 176 new cyst descriptions....

Theory Instrumentation NIR analysis of sediment samples Uses of NIRS in palaeolimnology Future perspectives Summary References Fly-ash particles. Neil Rose 319 12. Introduction A brief history Methods of extraction and enumeration Temporal distribution Spatial distribution Source apportionment The future Summary Acknowledgements References Part III: Stable Isotope Techniques 13. Application of stable isotope techniques to inorganic and biogenic carbonates. Emi Ito 351 Introduction Nomenclature and systematics of lake-water Mg/Ca and Sr/Ca ratios of lake-water of dissolved inorganic carbon...

Paleolimnology is a rapidly developing science that is now being used to study a suite of environmental and ecological problems. This volume is the fourth handbook in the Developments in Paleoenvironmental Research book series. The first volume (Last & Smol, 2001a) examined the acquisition and archiving of sediment cores, chronological techniques, and large-scale basin analysis methods. Volume 2 (Last & Smol, 2001b) focused on physical and chemical methods. Volume 3 (Smol et al., 2001), along with this book, summarize the many biological methods and techniques that are available to study...

This third volume in the Developments in Paleoenvironmental Research series deals with the major terrestrial, algal, and siliceous indicators used in paleolimnology. Other volumes deal with the acquisition and archiving of lake sediment cores, chronological techniques, and large-scale basin analysis methods (Volume 1), physical and geochemical parameters and methods (Volume 2), zoological techniques (Volume 4), and statistical and data handling methods (Volume 5). These monographs will provide sufficient detail and breadth to be useful handbooks for both seasoned practitioners as well as...