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Feeding behaviour and associated sensory mechanisms of stage I–III phyllosoma of Jasus edwardsii and Jasus verreauxi

Published online by Cambridge University Press:  10 April 2003

Serena L. Cox
Affiliation:
School of Biological Sciences, University of Auckland, Private Bag 92019, Auckland, New Zealand
Michael P. Bruce
Affiliation:
National Institute of Water and Atmospheric Research, 269 Khyber Pass Road, Newmarket, Auckland, New Zealand

Abstract

The feeding behaviour of stage I–III phyllosoma of the spiny lobsters Jasus edwardsii and Jasus verreauxi was recorded to determine the sequence of events and sensory mechanisms involved in the feeding process. All phyllosoma exhibited a characteristic tumbling behaviour prior to making contact with an individual Artemia and feeding behaviour was similar between the two species. Tactile contact with pereiopods 1 or 2 was necessary to initiate a prey capture response which involved spearing of Artemia, using the terminal dactyl present on these two pereiopods and then passing the prey forward to the mouth with the maxillipeds.

Scanning electron microscopy (SEM) of the pereiopods revealed two morphologically distinct receptors present on the distal segments. These receptors are suggested to have tactile and chemoreceptive roles.

Type
Research Article
Copyright
2003 Marine Biological Association of the United Kingdom

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