Concerning calculation methods and limitations of proxy-estimates of Proteins, Carbohydrates and Lipids in crustacean zooplankton from CHN analyses

Submitted: 9 December 2011
Accepted: 9 December 2011
Published: 1 August 2000
Abstract Views: 1376
PDF: 637
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The present comments resulted from a discussion I had with Dr. Riccardi about the validity of proxy estimates of protein, carbohydrate, and lipid in various zooplankton species of Northern Italian lakes (Riccardi & Mangoni 1999). For these estimates the authors used a calculation method proposed by Gnaiger & Bitterlich (1984; below referred to as G&B). The reason why I questioned the application of the unmodified G&B model to zooplankton was that carbohydrate in crustaceans is mostly present in form of chitin. The argumentation grow rapidly beyond a simple dispute about modes of calculation, leading to some more principle considerations about the limits of proxy estimates.

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VOLLENWEIDER, Richard A. 2000. “Concerning Calculation Methods and Limitations of Proxy-Estimates of Proteins, Carbohydrates and Lipids in Crustacean Zooplankton from CHN Analyses”. Journal of Limnology 59 (2):170-78. https://doi.org/10.4081/jlimnol.2000.170.

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