Yuri I. Sorokin

Radioisotopic Methods in Hydrobiology (eBook, PDF)

• Format: PDF

Produktbeschreibung

Written in a didactic way so as to stimulate thought and discussion, this is a comprehensive description of all devices helpful in radioisotopic techniques. Despite being exhaustive in its coverage, this handbook will navigate researchers and students through the numerous techniques available to find those that are most suitable and reliable. The author has 50 years experience in this field and so is able to offer evaluations and instructions for practical use. The methods described are illustrated by tables and graphs with all the relevant results.

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Produktdetails

• Verlag: Springer Berlin Heidelberg
• Seitenzahl: 321
• Erscheinungstermin: 6. Dezember 2012
• Englisch
• ISBN-13: 9783642599347
• Artikelnr.: 53174273

Inhaltsangabe

1 General Features of Radioisotopic Methodology and Measurement of Radioactivity.- 1.1 Physical Background.- 1.2 Measurement of Radioactivity.- 2 The Radiocarbon Method to Estimate Primary Production in Aquatic Environments.- 2.1 Introduction.- 2.2 Historical Proceedings.- 2.3 Technique of Measuring Phytoplankton Primary Production.- 2.4 Faults in the Radiocarbon Method and Problems in its Calibration.- 2.5 Use of the Radiocarbon Method to Determine Primary Production by Benthic Hydrophytes and Their Associations.- 3 Radioisotopic Methods for the Study of Nutrition in Aquatic Animals.- 3.1 Introduction. Alternative Methods.- 3.2 General Principles.- 3.3 Preparation of Labeled Food.- 3.4 Analyses of Basic Values Needed for the Calculation of Intensity and Efficiency of Nutrition.- 3.5 Use of 14C for Assessment of Nutritional Problems in the Ecology and Physiology of Aquatic Animals.- 3.6 Measurements of Absolute Rates of Feeding, Food Assimilability, and Respiration.- 3.7 Concluding Remarks.- 4 Use of Radioisotopic Methodology in Aquatic Microbial Ecology.- 4.1 Introduction.- 4.2 Estimation of Relative Microbial Activity in Aquatic Habitats.- 4.3 Determination of the in situ Decomposition Rates.- 4.4 Determination of Microbial Production.- 5 Use of Radioisotopes to Study Biogeochemical Cycling of Elements in Aquatic Environments.- 5.1 Introduction.- 5.2 Study of Microbial Methane Oxidation Using 14C.- 5.3 Estimation of in situ Methane Production Rates.- 5.4 Measurement of Nitrification Rate with the 14CO2 Dark Uptake Method.- 5.5 Studying Sulfur Cycling with the Aid of 35S.- 5.6 Study of Sulfate Reduction.- 5.7 Study of the Dynamics of Phosphorus.- 6 Assay of Some Common Hydrobiological Techniques.- 6.1 Techniques for the Quantification Density of Microplankton Populations.- 6.2 Quantification of Mesozooplankton.- 6.3 Total Plankton Respiration, Stock of Labile Organic Matter, and its Turnover Time.- 6.4 Determination of Free H2S and Labile Sulfides in Bottom Sediments.- 6.5 Conclusion.- References.