PHOTOMECHANICAL RESPONSES IN THE EYE OF THE JAMAICAN FRESHWATER SHRIMP MACROBRACHIUM HETEROCHIRUS(WIEGMANN)

DOI Web Site Web Site
  • MEYER-ROCHOW V. B.
    Electron Microscopy Lab and Department of Zoology, University of the West Indies, Mona Campus
  • REID W. A.
    Electron Microscopy Lab and Department of Zoology, University of the West Indies, Mona Campus
  • HALEY M.
    Electron Microscopy Lab and Department of Zoology, University of the West Indies, Mona Campus

Bibliographic Information

Other Title
  • ジャマイカ産淡水エビ(Macrobrachium heterochirus)の眼の明・暗順応変化
  • ジャマイカ産淡水エビ,Macrobranchium heterochirusの眼の明暗順応変化〔英文〕
  • ジャマイカサン タンスイ エビ Macrobranchium heteroch

Search this article

Description

Dark/light adaptational changes in the eye of the Jamaican freshwater shrimp Macrobrachium heterochirus involves distal and proximal pigment migrations as well as changes in cellular shapes. A small lens-like structure at the distal tip of the rhabdom is described for the first time in a shrimp. Rhabdoms are enlarged at night. Individuals are usually nocturnal and it is believed that under dim light conditions, larger crabs have a double-advantage over small ones: not only are they stronger: they also see better in the dark. It is finally suggested that tapetal cells may respond directly to light without hormones getting involved.

Journal

Keywords

Details 詳細情報について

Report a problem

Back to top