Skip to main content
×
×
Home

The photosensitive pigments in the retinae of deep-sea fish

  • E. J. Denton (a1) and F. J. Warren (a1)
Extract

Measurements were made on the intact retinae dissected from freshly caught deep-sea fish. The unbleached retinae of such fish are not rose-pink like the retinae of most coastal fish or purple like the retinae of most freshwater fish, but are golden in colour.

The golden colours are of photosensitive pigments which give retinal absorption curves similar in shape to frog's rhodopsin, but with maxima of absorption displaced on the average about 15 mμ. towards the blue end of the spectrum. The names ‘chrysopsins’ or visual golds are suggested for this group of pigments.

The density of such photosensitive pigments is often very high. Retinal density changes on bleaching of more than 1.0 has been found for several deepsea fish. These probably correspond to absolute retinal densities of pigment of about 1.3, i.e. the absorption of 95% of blue-green light striking the retina.

The conger and silver freshwater eels have retinae containing similar golden-coloured pigments. These eels begin their lives in the deep ocean and return there when mature to spawn.

The significance of this type of photosensitive pigment in the vision of deep-sea fish is discussed, and an estimate is made of the depths at which deepsea fish will see daylight.

Copyright
References
Hide All
Barlow, H., 1956. Retinal noise and absolute threshold. J. opt. Soc. Amer., Vol. 46, pp. 634–9.
Barlow, H., 1957. Purkinje Shift and Retinal Noise. Nature, Lond., Vol. 179, pp. 255–6.
Beebe, W., 1935. Half Mile Down. London: John Lane.
Bridges, C. D. B., 1956. The visual pigments of the Rainbow trout (Salmo irideus). J. Physiol., Vol. 134, pp. 620–9.
Clarke, G. L., 1936. On the depth at which fish can see. Ecology, Vol. 17, pp. 452–6.
Clarke, G. L. & Wertheim, G. K., 1956. Measurements of illumination at great depths and at night in the Atlantic Ocean by means of a new bathyphotometer. Deep-Sea Res., Vol. 3, pp. 189205.
Dartnall, H. J. A., 1955. Visual pigments of the bleak (Alburnus lucidus). J. Physiol., Vol. 128, pp. 131–56.
Denton, E. J., 1954. Une novelle méthode pour determiner la courbe d'absorption du pourpre rétinien. C.R. Acad. Sci., Paris, T. 239, pp. 1315–6.
Denton, E. J. & Pirenne, M. H., 1954. The absolute sensitivity and functional stability of the human eye. J. Physiol., Vol. 123, pp. 417–42.
Denton, E. J. & Walker, M. A., 1957. The visual pigment of the conger eel. (In preparation.)
Denton, E. J. & Warren, F. J., 1956. Visual pigments of deep sea fish. Nature, Lond., Vol. 178, p. 1059.
Denton, E. J. & Wyllie, J. H., 1955. Study of the photosensitive pigments in the pink and green rods of the frog. J. Physiol., Vol. 127, pp. 81–9.
Jerlov, N. G., 1947–8. Optical studies of ocean waters. Rep. Swedish deep-sea Exped., Vol. 3, Fasc. 1, Physics and Chemistry, pp. 159.
Kühne, W., 1878. The Photochemistry of the Retina and on Visual Purple. (Translated by M., Foster.) London: Macmillan.
Le Grand, Y., 1948. Lumière et couleurs. Optique Physiologique, Vol. 2. Paris. Editions de la Revue d'Optique.
Marshall, N. B., 1954. Aspects of Deep Sea Biology. London: Hutchinson's.
Rushton, W. A. H., 1956. The rhodopsin density in the human rods. J. Physiol., Vol. 134, pp. 3046.
St George, R. C. C, 1952. The interplay of light and heat in bleaching rhodopsin. J. gen. Physiol., Vol. 35, pp. 495517
Stiles, W. S., 1948. The physical interpretation of the spectral sensitivity curve of the eye. Transactions of the Optical Convention of the Worshipful Company of Spectacle Makers, 1948, pp. 97107. London.
Wald, G., 1945–6. The chemical evolution of vision. Harvey Lect., Ser. 41, pp. 117–60.
Wald, G., 1938–9. The porphyropsin visual system. J. gen. Physiol., Vol. 22, PP. 775–93
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

Journal of the Marine Biological Association of the United Kingdom
  • ISSN: 0025-3154
  • EISSN: 1469-7769
  • URL: /core/journals/journal-of-the-marine-biological-association-of-the-united-kingdom
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×