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Journal of Comparative Physiology A

, Volume 185, Issue 3, pp 255–265 | Cite as

Comparative study of the spectral sensitivities of mesopelagic crustaceans

  • T. M. Frank
  • E. A. Widder
ORIGINAL PAPER

Abstract

The spectral sensitivities of 12 species of mesopelagic crustaceans were studied by means of electrophysiological recordings. Nine of the species are vertical migrators, while 3 are not, and 9 species possess bioluminescent organs, while 3 are not bioluminescent. All species had a single peak of spectral sensitivity with maxima between 470 nm and 500 nm. There was no apparent correlation between sensitivity maxima and daytime depth distribution, migratory behavior, or the presence or absence of bioluminescent organs. With the exception of the hyperiid amphipod Phronima sedentaria, the spectral sensitivities of these mesopelagic crustaceans demonstrate a better match for maximum sensitivity to bioluminescence than to downwelling light.

Key words Mesopelagic Crustacean Electrophysiology Vision Deep-sea 

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Copyright information

© Springer-Verlag Berlin Heidelberg 1999

Authors and Affiliations

  • T. M. Frank
    • 1
  • E. A. Widder
    • 1
  1. 1.Division of Marine Science, Harbor Branch Oceanographic Institution, 5600 U.S. 1 N, Ft. Pierce, FL 34946, USA e-mail:frank@hboi.edu Fax: +1-561-468-0757US

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