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Observations on the Occurrence of an Epizooic, Blue-Green Alga on the Chemoreceptor Setae of the Brown Shrimp, Crangon Crangon (L.)

Published online by Cambridge University Press:  11 May 2009

R. G. J. Shelton
R. G. J. Shelton
Affiliation:
Ministry of Agriculture, Fisheries and Food, Fisheries Laboratory, Lowestoft, Suffolk
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Extract

The thin-walled setae on the outer rami of the antennules of decapod Crustacea are considered to be chemoreceptors. It is not known whether stimulatory molecules enter each seta through the cuticular wall or via an apical pore. In this paper evidence is presented that the antennular chemoreceptors of the brown shrimp, Crangon crangon (L.), bear apical pores. In some field and laboratory populations, however, the pores are blocked by an epizooic, blue-green alga and this provides a direct means of testing the hypothesis that the apical pore is important in the sensory process.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 54 , Issue 2 , May 1974 , pp. 301 - 307
Copyright
Copyright © Marine Biological Association of the United Kingdom 1974

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