Description / Table of Contents:
Contents: 1 An introduction to Antarctic lakes. - 1.1 Introduction. - 1.2 History of Antarctic limnology and logistics. - 1.3 Climatic conditions in Antarctica. - 1.4 Glaciological history of Antarctica. - 1.5 Diversity of lakes. - 1.6 Lake types and geochemical conditions. - 1.6.1 Salinity. - 1.6.2 Redox conditions. - 1.6.3 Nutrient and organic carbon supply. - 1.6.4 Geochemical indicators of lake history. - 1.7 Geomorphology of Antarctic lakes. - 1.8 Antarctic lake biota. - 1.8.1 Archaea and Bacteria. - 1.8.2 Viruses. - 1.8.3 Protozoa. - 1.8.4 Algae. - 1.8.5 Rotifers. - 1.8.6 Crustaceans. - 1.8.7 Other invertebrates. - 1.9 Habitats in Antarctic lakes. - 2 Freshwater lakes. - 2.1 Introduction. - 2.2 Formation of freshwater lakes. - 2.3 Temperature and stratification. - 2.4 Water chernistry. - 2.5 The planktonic biota of freshwater lakes. - 2.5.1 Heterotrophic bacteria. - 2.5.2 Viruses. - 2.5.3 Protozoa. - 2.5.4 The phytoplankton. - 2.5.5 The zooplankton. - 2.6 Carbon cycling in the planktonic environment. - 2.6.1 Primary production. - 2.6.2 Bacterial production. - 2.6.3 Heterotrophic grazing. - 2.7 The benthic communities. - 2.7.1 Phototrophic benthic communities. - 2.7.2 Heterotrophic benthic communities. - 2.7.3 Carbon cycling in the benthos. - 3 Saline lakes. - 3.1 Introduction. - 3.2 Distribution of saline lakes in Antarctica. - 3.3 Formation of saline lakes. - 3.4 Patterns of stratification and temperature. - 3.5 Water chemistry. - 3.6 The planktonic biota of saline lakes. - 3.6.1 Heterotrophic Bacteria and Archaea. - 3.6.2 Photosynthetic bacteria. - 3.6.3 Viruses. - 3.6.4 Protozoa. - 3.6.5 Algae. - 3.6.6 Zooplankton. - 3.7 Carbon cycling in the plankton. - 3.7.1 Primary production. - 3.7.2 Bacterial production. - 3.7.3 Heterotrophic grazing and carbon cycling. - 3.8 The biota of saline Iake ice covers. - 3.9 The benthic community. - 3.10 Carbon cycling in the benthos. - 3.11 A unique Antarctic Iake - Lake Vida. - 4 Epishelf lakes. - 4.1 Introduction. - 4.2 Formation and physico/chemical characteristics of epishelf lakes. - 4.2.1 Geomorphology. - 4.2.2 Physico/chemical characteristics. - 4.3 The planktonic biota of epishelf lakes. - 4.4 Carbon cycling in the plankton of epishelf lakes. - 4.5 The benthic communities of epishelf lakes. - 5 Lakes and ponds on glaciers and ice shelves. - 5.1 Introduction. - 5.2 Supraglacial lakes. - 5.2.1 Types of cryolakes. - 5.2.2 The physical/chemical environment and biology of cryolakes. - 5.3 Ice shelf ponds and lakes. - 6 Subglacial lakes. - 6.1 Introduction. - 6.2 Distribution and physiographic characteristics of subglacial lakes in Antarctica. - 6.3 Detailed studies of subglacial lakes. - 6.3.1 Lake Vostok. - 6.3.2 Lake Ellsworth. - 6.3.3 Lake Whillans. - 6.3.4 Hodgson Lake. - 6.4 Formation of subglacial lakes and hydrological conditions. - 6.5 Geochemical conditions in subglacial lakes. - 6.6 The biota of subglacial lakes. - 7 Conclusions and future directions. - 7.1 Antarctic lakes in a global context. - 7.2 Inter-annual variations and Ionger-term trends. - 7.3 The gaps in the data - the way forward. - 7.4 Future directions. - Glossary. - References. - Index.
Description / Table of Contents:
The Antarctic continent carries the greatest diversity of Iake environments on the planet: freshwater and saline lakes, tidal freshwater epishelf lakes, lakes on ice shelves and glacier surfaces, and over three hundred subglacial lakes; extraordinary ecosystems that have been separated from the atmosphere for up to millions of years. This book provides a unique and cutting edge synthesis of Antarctic limnology, drawing together current knowledge on geomorphology, morphometry, chemistry, community structure and function. lt emphasises throughout the value of these near-pristine ecosystems as barometers of climate change, showing how responsive and vulnerable they are to the indirect impacts of anthropogenic activity. Antarctic Lakes begins with an introduction to their physical, chemical, and biological characteristics, providing a basis for understanding the subsequent detailed chapters on different Iake types, and ends with a chapter considering the application of new technologies to polar limnology as well as identifying future research directions. This accessible text is suitable for both senior undergraduate and graduate students taking courses in Antarctic and polar limnology, and will also be of broad interest to researchers working in the areas of polar science, microbial ecology (and extremophiles), climatology, glaciology, and astrobiology.
Type of Medium:
Monograph available for loan
ix, 215 S. : Ill., graph. Darst., Kt.