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ICES Journal of Marine Science: Journal du Conseil Advance Access originally published online on January 13, 2008
ICES Journal of Marine Science: Journal du Conseil 2008 65(3):332-338; doi:10.1093/icesjms/fsm180
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© 2008 International Council for the Exploration of the Sea. Published by Oxford Journals. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

This article appears in the following ICES Journal of Marine Science issue: 4th International Zooplankton Production Symposium: Human and Climate Forcing of Zooplankton Populations [View the issue table of contents]

Copepod growth in detail: pattern similarity to decapod larvae

Charles B. Miller

College of Oceanic and Atmospheric Sciences, Oregon State University, Corvallis, OR 97331-5503, USA

tel: +1 541 7374524; fax: +1 541 7372064; e-mail: cmiller{at}coas.oregonstate.edu

Miller, C. B. 2008. Copepod growth in detail: pattern similarity to decapod larvae. – ICES Journal of Marine Science, 65: 332–338.

It is proposed that copepods grow between one moult and the next in much the same fashion as established by Klaus Anger and others for decapod crustacean larvae. The analogy is justified by commonality of (i) approximately isochronal development patterns, (ii) potential for continuously exponential growth at stage-to-stage resolution, and (iii) demonstrated points of reserve saturation. Thus, as for crab zoeae, the copepod pattern should be very fast initial growth, then slowing as activity shifts to preparation of the new exoskeleton prior to moult. As much as 80% of growth may occur in the first half of the moult cycle, with no growth at all in the last third. Establishing the exact patterns for copepods faces difficulties not presented by decapod larvae, and some solutions to these problems are suggested. Obtaining precise data will help to predict and interpret (model correctly) the effects of food limitation in the field.

Keywords: biomass determination, copepod, growth pattern, point of no return, point of reserve saturation

Received 5 July 2007; accepted 5 September 2007; advance access publication 13 January 2008.


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