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Shallow Lakes Contributions to their Limnology
The Symposium on Shallow Lakes, held from 23rd-30th, September 1979, at the Biological Research Station, IlImitz (Austria), was intended to give an insight into current European research on shallow lakes. The reason for the restriction to European participants was firstly to gather as much information as possible on investigations in one geographic area, and secondly the limited time and space available. Since shallow lakes pose a number of problems specifically related to their depth, several symposia have been devoted to this subject. Meetings like the Symposium on the Limnology of Shallow Waters in Tihany (Hungary), in 1973 and the Symposium 'Flachseeforschung' in Steinhude (Fed. Rep. of Germany), in 1974 stressed the need for further communication amongst limnologists working in this field. Moreover several international projects, like the OECD-Eutrophication-Program and the MaB-Project, have included certain aspects of shallow lake limnology. It is hoped by the editors that the proceedings presented here will stimulate further research and a greater exchange of information in this field.
Methods of Biological Recycling of Nutrients from Livestock Wastes
The major problems in the development of a biological nutrient-recycling system include dealing with low oxygen concentrations, achieving balance among various components, maximizing productivity, and minimizing the area and the volume necessary to recycle a maximum quantity of animal wastes.
The Lakes Handbook
Continuing concern about water supply and quality, ecosystem sustainability and restoration demands that the modern approach to the management of lakes and reservoirs should be based on a sound understanding of the application of the scientific and ecological principles that underlie freshwater processes. The Lakes Handbook provides an up-to-date overview of the application of ecologically sound approaches, methods and tools using experience gained around the world for an understanding of lakes and their management. Volume one of the Handbook addresses the physical and biological aspects of lakes pertinent to lake management, emphasising those aspects particularly relevant to large, still bodies of water. Volume two then considers lake management, with particular emphasis on sustainability, restoration and rehabilitation. This handbook will be invaluable to ecologists, environmental scientists, physical geographers and hydrologists involved in limnological research, as well as advanced undergraduate and graduate students looking for authoritative reviews of the key areas of limnological study.
Limnology
This book gives a comparative treatment of topics accross lake, reservoir, and rive ecosystems. These analysis do indeed indicate differences among the properties of lakes, land-water interface regions, reservoirs, and rivers. Importantly, these analysis also indicate marked commonality in function.
Primary Productivity in the Sea
Primary productivity in the sea accounts for ~30% of the total global annual production. Holistic understanding of the factors determining marine productivity requires detailed knowl edge of algal physiology and of hydrodynamics. Traditionally studies of aquatic primary productivity have heen conducted hy workers in two major schools: experimental laboratory biology, and empirical field ecology. Here an attempt was made .to hring together people from both schools to share information and con cepts; each author was charged with reviewing his field of exoer tise. The scope of the Symposium is broad, which we feel is its strength. We gratefully acknowledge financial support from the Depart ment...
