ICES Journal of Marine Science: Journal du Conseil Advance Access first published online on January 13, 2008
This version published online on January 22, 2008
ICES Journal of Marine Science: Journal du Conseil, doi:10.1093/icesjms/fsm180
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Copepod growth in detail: pattern similarity to decapod larvae
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.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.
This paper was previously published without the correct online tagging. This has now been amended to "The 4th International Zooplankton Production Symposium".