Chapter

Measuring Freshwater Primary Production and Respiration

Robert O. Hall Jr., Serge Thomas and Evelyn E. Gaiser

in Principles and Standards for Measuring Primary Production

Published in print August 2007 | ISBN: 9780195168662
Published online September 2007 | e-ISBN: 9780199790128 | DOI: http://dx.doi.org/10.1093/acprof:oso/9780195168662.003.0010

Series: The Long-Term Ecological Research Network Series

 						Measuring Freshwater Primary Production and Respiration

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Despite a long history of research, measurements of the metabolism of freshwater ecosystems have undergone many recent methodological improvements that are summarized in this chapter. After describing some relevant considerations about the dynamics of lake and streams, the recommended methods for primary production measurement are detailed. Whole-ecosystem methods of gas exchange are examined, including problems of reaeration and error estimation. An overview of chamber methods using O2 and 14C is provided, including problems of scaling up. Recent advances in microscale methods including oxygen electrodes and fluorometry are described.

Keywords: metabolism; reaeration; chambers; 14C; whole-ecosystem; fluorometry; oxygen electrode

Chapter.  12451 words.  Illustrated.

Subjects: Animal Pathology and Diseases

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