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Biol Bull 149: 522-538. (December 1975)
© 1975 Marine Biological Laboratory
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COMPARATIVE CHEMOSENSITIVITY TO AMINO ACIDS AND THEIR ROLE IN THE FEEDING ACTIVITY OF BATHYPELAGIC AND LITTORAL CRUSTACEANS

ZOLTAN M. FUZESSERY 1 and JAMES J. CHILDRESS 1

1 Department of Biological Sciences, University of California, Santa Barbara, California 93106

1. Feeding response exhibition in five marine crustaceans was observed in the presence of a range of concentrations of an amino acid mixture composed of equal parts DL alpha arnino-n-butyric acid, L-glutamic acid and taurine. Gnathophausiaingens, Pleuroncodes planipes, and Cancer antennarius displayed behavioral thresh olds of between 10-10 and 10-12 M; Spirontocaris taylori and Pagurus hirsutiusculus displayed thresholds between 10-7 and 10-9 M.

2. Electrophysiological response thresholds to the amino acid mixture were examined in G. ingens and C. antennarius. The antennular and dactyl receptors of G. ingens displayed thresholds of 10-7 and 10-8 M respectively. Maxilliped and dactyl receptors of C. antennarius both displayed a threshold of 5 x 10-5 M.

3. Panulirus interruptus antennule receptors displayed a degree of specificity to mono- and dicarboxylic amino acids.




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Copyright © 1975 by the Marine Biological Laboratory.