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JPR Advance Access originally published online on April 11, 2006
Journal of Plankton Research 2006 28(7):719-723; doi:10.1093/plankt/fbl002
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© The Author 2006. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

SHORT COMMUNICATION

Feeding efficiency of the larval ctenophore Mnemiopsis leidyi A. Agassiz (Ctenophora, Lobata)

Rebecca J. Waggett* and Lindsay J. Sullivan

Graduate School of Oceanography, University of Rhode Island, Narragansett, RI 02882-1197, USA

* Corresponding author: waggett{at}gso.uri.edu

Received December 12, 2005; accepted in principle February 21, 2006; accepted for publication April 4, 2006; published online April 11, 2006
Communicating editor: K.J. Flynn

Larval stages of the ctenophore Mnemiopsis leidyi rely on metazoan prey, such as Acartia tonsa nauplii and copepodites, to support high growth rates. However, M. leidyi larvae <0.5 mm (total length) had low retention efficiencies (REs) (proportion of encountered prey actually ingested), 5.78 ± 2.6% (mean ± SE), of nauplii and were often damaged by their encounters. REs of nauplii rapidly increased, 38.94 ± 3.73%, as larvae grew to a size of ~2.0 mm. For larvae >2.0 mm, nauplii REs plateaued at a mean of 91.03 ± 1.70%. All larvae <0.80 mm were incapable of successfully consuming copepodites. REs of copepodites increased, 23.04 ± 4.68%, as ctenophore larvae developed to ~2.5 mm. Ctenophore larvae >2.5 mm reached a maximum copepodite RE of 63.75 ± 3.01%.


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Home page
 J PLANKTON RESHome page
L. J. Sullivan and D. J. Gifford
Growth and feeding rates of the newly hatched larval ctenophore Mnemiopsis leidyi A. Agassiz (Ctenophora, Lobata)
J. Plankton Res., November 1, 2007; 29(11): 949 - 965.
[Abstract] [Full Text] [PDF]


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