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The Reliability of Grazing Rate Estimates from Dilution Experiments: Have We Over-estimated Rates of Organic Carbon Consumption by Microzooplankton? : Volume 1, Issue 1 (11/02/2005)

By Dolan,, J. R.

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Book Id: WPLBN0004020160
Format Type: PDF Article :
File Size: Pages 7
Reproduction Date: 2015

Title: The Reliability of Grazing Rate Estimates from Dilution Experiments: Have We Over-estimated Rates of Organic Carbon Consumption by Microzooplankton? : Volume 1, Issue 1 (11/02/2005)  
Author: Dolan,, J. R.
Volume: Vol. 1, Issue 1
Language: English
Subject: Science, Ocean, Science
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2005
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

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Mckeon, K., & Dolan, J. R. (2005). The Reliability of Grazing Rate Estimates from Dilution Experiments: Have We Over-estimated Rates of Organic Carbon Consumption by Microzooplankton? : Volume 1, Issue 1 (11/02/2005). Retrieved from http://hawaiilibrary.net/


Description
Description: Marine Microbial Ecology Group, Laboratoire Oéanographique de Villefranche, CNRS UMR 7093, Université Paris VI, Station Zoologique, B P 28, F-06230 Villefranche-Sur-Mer, France. According to a recent global analysis, microzooplankton grazing is surprisingly invariant, ranging only between 59 and 74% of phytoplankton primary production across systems differing in seasonality, trophic status, latitude, or salinity. Thus an important biological process in the world ocean, the daily consumption of recently fixed carbon, appears nearly constant. We believe this conclusion is an artefact because dilution experiments are 1) prone to providing over-estimates of grazing rates and 2) unlikely to furnish evidence of low grazing rates. In our view the overall average rate of microzooplankton grazing probably does not exceed 50% of primary production and may be even lower in oligotrophic systems.

Summary
The reliability of grazing rate estimates from dilution experiments: Have we over-estimated rates of organic carbon consumption by microzooplankton?

 

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