Summary
The compound eyes of the mesopelagic euphausiid Thysanopoda tricuspidata were investigated by light-, scanning-, and transmission electron microscopy. The eyes are spherical and have a diameter that corresponds to 1/6 of the carapace length. The hexagonal facets have strongly curved outer surfaces. Although there are four crystalline cone cells, only two participate in the formation of the cone, which is 90–120 μm long and appears to have a radial gradient of refractive index. The clear zone, separating dioptric structures and retinula, is only 90–120 μm wide. In it lie the very large oval nuclei of the seven retinula cells. Directly in front of the 70 μm long and 15 μm thick rhabdom a lens-like structure of 12 μm diameter is developed. This structure, known in only a very few arthropods, seems to be present in all species of Euphausiacea studied to date. It is believed that the rhabdom lens improves near-field vision and absolute light sensitivity. Rod-shaped pigment grains and mitochondria of the tubular type are found in the plasma of retinula cells. The position of the proximal screening pigment as well as the microvillar organization in the rhadbdom are indicative of light-adapted material. The orthogonal alignment of rhabdovilli suggests polarization sensitivity. Behind each rhabdom there is a cup-shaped homogeneous structure of unknown, but possibly optical function. Finally, the structure and the function of the euphysiid eye are reviewed and the functional implications of individual components are discussed.
Similar content being viewed by others
References
Ball, E.E.: Fine structure of the compound eyes of the midwater amphipod Phronima in relation to behavior and habitat. Tissue and Cell 9, 521–536 (1977)
Bassot, J.-M.: Sur la structure des photophores d'euphausiaces. Bull. Soc. Zool. Fr. 91, 445–468 (1966)
Behrens, M., Krebs, W.: The effect of light-dark adaptation on the ultrastructure of Limulus lateral eye retinular cells. J. comp. Physiol. 107, 77–96 (1976)
Boden, B.P., Kampa, E.M., Abbott, B.C.: Photoreception of a planktonic crustacean in relation to light penetration in the sea. In: Progress in photobiology (B.C. Christenson and B. Buchmann, eds.), pp. 189–197. Amsterdam: Elsevier 1961
Butenandt, A.: Wirkstoffe des Insektenreiches. Naturwissenschaften 46, 461–471 (1959)
Chun, C.: Leuchtorgane und Facettenaugen — ein Beitrag zur Theorie des Sehens in grossen Meerestiefen. Biol. Stud, pelag. Organismen 6, 191–262 (1896)
Dennell, R.: Observations on the luminescence of bathypelagic Crustacea Decapoda of the Bermuda area. J. Linn. Soc. (Lond.) Zool. 42, 393–406 (1955)
Denton, E.J., Warren, F.J.: The photosensitive pigments in the retinae of deep-sea fish. J. mar. biol. Ass. U.K. 36, 651–662 (1957)
Eakin, R.M., Kuda, A.: Glycogen in lens of tunicate tadpole (Chordata, Ascidiaceae). J. exp. Zool. 180, 267–270 (1972)
Eguchi, E., Waterman, T.H.: Changes in retinal fine structure induced in the crab Libinia by light and dark adaptation. Z. Zellforsch. 79, 209–229 (1967)
Elofsson, R.: The nauplius eye and frontal organs of Malacostraca (Curstacea). Sarsia 19, 1–54 (1965)
Elofsson, R., Odselius, R.: The anostracan rhabdom and the basement membrane — an ultrastructural study of the Artemia compound eye (Crustacea). Acta zool. (Stockh.) 56, 141–153 (1975)
Engström, K.: Cone types and cone arrangement in teleost retinae. Acta zool. (Stockh.) 44, 179–243 (1963)
Exner, S.: Die Physiologie der facettierten Augen von Krebsen und Insekten. Leipzig-Wien: Franz Deuticke 1891
Fisher, L.R.: Vitamin A problems in marine research. Proc. roy. Soc. A 265, 359–365 (1962)
French, A.S., Snyder, A.W., Stavenga, D.G.: Image degradation by an irregular retinal mosaic. Biol. Cybernetics 27, 229–233 (1977)
Gregory, R.L., Ross, H.E., Morey, N.: The curious eye of Copilia. Nature (Lond.) 201, 1166–1169 (1964)
Grenacher, H.: Untersuchungen über das Sehorgan der Arthropoden insbesondere der Spinnen, Insecten und Crustaceen. Göttingen: Vandenhoek and Ruprecht 1879
Hallberg, E.: The fine structure of the compound eyes of mysids (Crustacea: Mysidacea). Cell Tiss. Res. 184, 45–65 (1977)
Hanström, B.: Vergleichende Anatomie des Nervensystems der wirbellosen Tiere unter Berücksichtigung seiner Funktion. Berlin: Springer 1928
Harvey, B.J.: Circulation and dioptric apparatus in the photophores of Euphausia pacifica: some ultrastructural observations. Canad. J. Zool. 55, 884–889 (1977)
Horridge, G.A.: The compound eye of insects. Scient. Amer. 237, 108–120 (1977a)
Horridge, G.A.: Insects which turn and look. Endeavour 1, 7–17 (1977b)
Horridge, G.A., Barnard, P.B.T.: Movement of palisade of locust retinula cells when illuminated. Quart. J. micr. Sci. 106, 131–135 (1965)
Itaya, S.K.: Light and dark adaptational changes in the accessory eye of the shrimp Palaemonetes. Tissue and Cell 8, 583–590 (1976)
Kaestner, A.: Invertebrate Zoology III. New York: Interscience 1970
Kampa, E.M.: Euphausiopsin, a new photosensitive pigment from the eyes of euphausiid crustaceans. Nature (Lond.) 175, 996–998 (1955)
Kampa, E.M.: The euphausiid eye — a re-evaluation. Vision Res. 5, 475–481 (1965)
Kampa, E.M., Boden, B.P., Abbott, B.C.: Observations on the histology of the eyes of euphausiid crustaceans. Proc. 16th Int. Congr. Zool. (Washington) 1, 106 (1963)
Loew, E.R.: Light and photoreceptor degeneration in the Norway lobster Nephrops norvegicus (L.) Proc. roy. Soc. B 193, 31–44 (1976)
Loewy, A.G., Siekevitz, P.: Cell structure and function. New York: Holt-Rinehart 1969
Mauchline, J., Fisher, L.R.: The biology of euphausiids. In: Advances in marine biology, Vol 7 (F.S. Russel and M. Yonge, eds.), pp. 144–259. New York: Academic Press 1969
McLeod, J.H.: The axicon: a new type of optical element. J. opt. Soc. Amer. 44, 592–597 (1954)
Meyer-Rochow, V.B.: A crustacean-like organisation of insect rhabdoms. Cytobiologie 4, 241–249 (1971)
Meyer-Rochow, V.B.: The larval eye of the deep-sea fish Cataetyx memorabilis (Teleostei, Ophidiidae). Z. Morph. Tiere 72, 331–340 (1972)
Meyer-Rochow, V.B.: Fine structural changes in dark-light-adaptation in relation to unit studies of an insect compound eye with a crustacean-like rhabdom. J. Insect Physiol. 20, 573–589 (1974)
Meyer-Rochow, V.B.: Larval and adult eye of the Western Rock Lobster (Panulirus longipes). Cell Tiss. Res. 162, 439–457 (1975)
Meyer-Rochow, V.B.: The eyes of mesopelagic crustaceans: II. Streetsia challengeri (Amphipoda). Cell Tiss. Res. 186, 337–346 (1978)
Meyer-Rochow, V.B., Horridge, G.A.: The eye of Anoplognathus (Coleoptera, Scarabaeidae). Proc. roy. Soc. B 188, 1–30 (1975)
Meyer-Rochow, V.B., Walsh, S.: The eyes of mesopelagic crustaceans: I. Gennadas sp. (Penaeidae). Cell Tiss. Res. 184, 87–101 (1977)
Munn, E.A.: The structure of mitochondria. London-New York: Academic Press 1974
O'Day, W.T., Fernandez, H.: Aristostomias scintillans (Malacosteidae) — a deep-sea fish with visual pigments apparently adapted to its own bioluminescence. Vision Res. 14, 545–550 (1974)
Perrelet, A.: The fine structure of the retina of the honey bee drone. Z. Zellforsch. 108, 530–562 (1970)
Revel, J.P.: Electron microscopy of glycogen. J. Histochem. Cytochem. 12, 104–114 (1964)
Roach, J.L.M.: Functional structures in the crystalline cone of the crayfish compound eye. Cell Tiss. Res. 173, 309–314 (1976)
Roger, C.: Les euphausiaces du Pacifique équatorial et sud tropical. Memoires O.R.S.T.O.M. 71, 1–265 (1974)
Röhlich, P., Törö, I.: Fine structure of the compound eye of Daphnia in normal, dark-and strongly light-adapted state. In: The structure of the eye (J.W. Rohen, ed.), pp. 175–186 Stuttgart: Schattauer 1965
Schiff, H., Gervasio, A.: Functional morphology of the Squilla retina. Publ. Staz. Zool. Napoli 37, 610–629 (1969)
Schönenberger, N.: The fine structure of the compound eye of Squilla mantis (Crustacea, Stomatopoda). Cell Tiss. Res. 176, 205–233 (1977)
Snyder, A.W.: Polarization sensitivity of individual retinula cells. J. comp. Physiol. 83, 331–336 (1973)
Snyder, A.W., Stavenga, D.G., Laughlin, S.B.: Spatial information capacity of compound eyes. J. comp. Physiol. 116, 183–207 (1977)
Täuber, U.: Analyse des Polarisationszustandes des aus dem Rhabdomer austretenden Lichtes. J. comp. Physiol. 95, 169–183 (1974)
Tuurala, O., Lehtinen, A.: Über die Einwirkung von Licht und Dunkel auf die Feinstruktur der Lichtsinneszellen der Assel Oniscus asellus L. Ann. Acad. Sci. fenn. A (Biologica) 177, 1–8 (1971)
Vaissière, R.: Morphologie et histologie comparées des yeux des Crustacés copépodes. Arch. Zool. Exp. Gen. 100, 1–125 (1961)
Welsh, J.H., Chace, F.A.: Eyes of deep-sea crustaceans. I Acanthephyridae. Biol. Bull. 72, 57–74 (1937)
Wolken, J.J., Florida, R.G.: The eye structure and optical system of the crustacean copepod Copilia. J. Cell Biol. 40, 279–285 (1969)
Zimmer, C.: Euphausiacea. In: Bronns Klassen des Tierreichs, Bd. 5 (H.E. Gruner, ed.), S. 1–286. Leipzig: Geest and Portig 1956
Zyznar, E.S.: The eyes of white shrimp Penaeus setiferus (Linnaeus) with a note on the rock shrimp Sicyonia brevirostris Stimpson. Contrib. in Marine Sci. (Texas) 15, 87–102 (1970)
Author information
Authors and Affiliations
Additional information
This study was begun during the 1975 “Alpha Helix” South East Asia Bioluminescence Expedition to the South Moluccan Islands
Rights and permissions
About this article
Cite this article
Meyer-Rochow, V.B., Walsh, S. The eyes of mesopelagic crustaceans. Cell Tissue Res. 195, 59–79 (1978). https://doi.org/10.1007/BF00233677
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00233677