HR: 16:15h
AN: OS54A-02 INVITED    [Abstracts]
TI: Planktotrophic versus lecithotrophic development in copepods
AU: * Boxshall, G A
EM: g.boxshall@nhm.ac.uk
AF: The Natural History Museum, Cromwell Road, London, SW7 5BD, United Kingdom
AB: Copepods typically have planktotrophic larvae but some have adapted to the alternative lecithotrophic mode. This paper explores the differences between planktotrophic and lecithotrophic larvae in terms of their size, shape and appendage morphology - all factors affecting their motion through the medium. Such differences can be functionally correlated with the behavioral differences between the two larval types. Lecithotrophic nauplii are non- feeding, have simplified appendages and a shorter larval phase. Drivers of their behavior include dispersal and predator avoidance, in contrast to planktotrophic larvae which must, in addition, locate and capture food particles.
DE: 4815 Ecosystems, structure, dynamics, and modeling (0439)
DE: 4817 Food webs, structure, and dynamics (0491)
DE: 4890 Zooplankton
SC: Ocean Sciences [OS]
MN: 2007 Fall Meeting