Advertisement

Marine Biology

, Volume 101, Issue 2, pp 173–185 | Cite as

Distribution, structure and importance of the cephalic dorsal hump, a new sensory organ in calanoid copepods

  • S. Nishida
Article

Abstract

The occurrence, external morphology and internal ultrastructure of a cephalic integumental organ in calanoid copepods were studied, using the specimens from the Pacific, Indian and Atlantic Oceans. This organ is located on the dorsoanterior surface of the cephalosome, and a name, cephalic dorsal hump (CDH) is proposed. Externally, it usually has two pores, anterior and apical, a dorsal plate, and a thin cuticle along the sides. CDH is found only in the male of Calanidae, Megacalanidae, Mecynoceridae and Paracalanidae, and showed some variation between species or species groups both in size and shape. Transmission electron microscopy (TEM) on the specimens from Sagami Bay, Central Japan, revealed that the CDH of Paracalanus parvus and Calanus sinicus consists of two dermal glands and a receptor, which is assumed to be chemosensory. A comparison of the distributions of CDH and prehensile fifth legs of male calanoid copepods suggests that it plays an important role in mate recognition.

Keywords

Japan Microscopy Electron Microscopy Transmission Electron Microscopy Atlantic Ocean 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Literature cited

  1. Ache, B. W. (1982). Chemoreception and thermoreception. In: Atwood, H. L., Sanderman, D. C. (eds.) The biology of Crustacea. Vol. 3. Neurobiology: structure and function. Academic Press, New York, p. 369–398Google Scholar
  2. Altner, H., Prillinger, L. (1980). Ultrastructure of invertebrate chemo-, thermo-, and hygroreceptors and its functional significance. Int. Rev. Cytol. 67: 139–153Google Scholar
  3. Andronov, V. N. (1970). Some problems of taxonomy of the family Paracalanidae (Copepoda). Zool. Zh. 49: 980–985 (In Russian)Google Scholar
  4. Andronov, V. N (1972). Some new species of the genus Parvocalanus (Copepoda, Paracalanidae). Zool. Zh. 51: 139–141 (In Russian)Google Scholar
  5. Andronov, V. N. (1973). Taxonomic status of Mecynacera clausi (Copepoda, Calanoida). Zool. Zh. 52: 1719–1721 (In Russian)Google Scholar
  6. Andronov, V. N. (1974). Phylogenetic relations of large taxa within the suborder Calanoida (Crustacea, Copepoda). Zool. Zh. 53: 1002–1012 (in Russian)Google Scholar
  7. Blades, P. I., Youngbluth, M. J. (1980). Morphological, physiological and behavioral aspects of mating in calanoid copepods. In: Kerfoot, W. C. (ed.) Evolution and ecology of zooplankton communities. University Press of New England, Hanover, p. 39–51Google Scholar
  8. Bowman, T. E. (1971). The distribution of calanoid copepods off the southeastern United States between Cape Hatteras and southern Florida. Smithson. Contr. Zool. 96: 1–58Google Scholar
  9. Bradford, J. M. (1970). Records of pelagic copepods off Kaikoura, New Zealand. N. Z. J.mar. Feshwat. Res. 4: 351–363Google Scholar
  10. Bradford, J. M. (1978). Paracalanus indicus Wolfenden and Corycaeus aucklandicus Kraemer, two neritic pelagic copepods from New Zealand. J. Roy. Soc. N. Z. 8: 133–141Google Scholar
  11. Bradferd, J. M., Jillet, J. B. (1974). A revision of generic definitions in the Calanidae (Copepoda, Calanoida). Crustaceana 27: 5–16Google Scholar
  12. Briggs, R. P. (1978). Structure of the integument in Paranthessius anemoniae Claus, a copepod associate of the snakelocks anemone Anemonia sulcata (Pennant). J. Morphol. 156: 293–316Google Scholar
  13. Brodsky, K. A. (1972). Phylogeny of the family Calanidae (Copepoda) on the basis of a comparative morphological analysis of its characters. In: Zvereva, Zh. A. (ed.) Geographical and seasonal variability of marine plankton. Exploration of marine Fauna XII (XX). Academy of Sciences of USSR. Leningrad, p. 1–227 [Translated from Russian by Israel Program for Scientific Translations, Jerusalem 1975]Google Scholar
  14. Brodsky, K. A., Vishkvartseva, N. V., Kos, M. S., Marhaseva, E. L. (1983). Copepod crustaceans in the seas of the USSR and adjacent waters. Vol. 1. Nauka, Leningrad (In Russian)Google Scholar
  15. Dudley, P. (1972). The fine structure of a cephalic sensory receptor in the copepod Doropygus seclusus Illg (Crustacea: Copepoda: Notodelphyidae). J. Morphol. 138: 407–432Google Scholar
  16. Elofsson, R. (1971). The ultrastructure of a chemoreceptor orga in the head of copepod crustaceans. Acta Zool., Stockh. 52: 299–315Google Scholar
  17. Fleminger, A. (1973). Pattern, number, variability and taxonomic significance of integumental organs (sensilla and glandular pores) in the genus Eucalanus (Copepoda, Calanoida). Fish. Bull. U. S. 71: 965–1010Google Scholar
  18. Fleminger, A. (1985). Dimorphism and possible sex change in copepods of the family Calanidae. Mar. Biol. 88: 273–294Google Scholar
  19. Fredman, M. M. (1980). Comparative morphology and functional significance of copepod receptors and oral structures. In: Kerfoot, W. C. (ed.) Evolution and ecology of zooplankton communities. University Press of New England, Hanover, p. 185–197Google Scholar
  20. Friedman, M. M., Strickler,J. R. (1975). Chemoreception and feeding in calanoid copepods.Proc. natn. Acad. Sci. U.S.A. 72: 4185–4188Google Scholar
  21. Gharagozlou-van Ginneken, I. D. (1977). Contribution a l'etude infrastructurale des glandes labrales de quelques Harpacticoides (Crustaces Copepodes). Archs Biol, Paris 88: 79–100Google Scholar
  22. Gharagozlou-van Ginneken, I. D. (1979). Etude ultrastructurale et cytochimique de l'activitie temporaire des glandes tegumentaires d'un Crustace Copepods.Annls. Sci. nat. Zool. 13, ser. 1: 205–212Google Scholar
  23. Ghiradella, H., Case, J. F., Cronshaw, J. (1968). Fine structure of the aesthetasc hairs of Coenobita compressus Edwards. J. Morphol. 124: 361–386Google Scholar
  24. Giesbrecht, W. (1892). Systematik und Faunistik der pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres-abschnitte. Fauna Flora Golf. Neapel 19: 1–831Google Scholar
  25. Gill, C. W. (1985). The response of a restrained copepod to tactile stimulation. Mar. Ecol. Prog. Ser. 21: 121–125Google Scholar
  26. Gill, C. W. (1986). Suspected mechano- and chemosensory structures of Temora longicornis (Copepoda: Calanoida). Mar. Biol. 93: 449–457Google Scholar
  27. Gill, C. W., Crisp, D. J. (1985). Sensitivity of intact and antennule ampulated copepods to water disturbance. Mar. Ecol. Prog. Ser. 21: 221–227Google Scholar
  28. Gnatzy, W. (1984). “Campaniform” structures on lobster anatennule are dermal glands. Cell Tissue Res. 236: 729–731Google Scholar
  29. Gonzalez, J. G., Bowman, T. E. (1965). Planktonic copepods from Bahia Fosforescente, Puerto Rico, and adjacent waters. Proc. U.S. nat. Mus. 117: 241–291Google Scholar
  30. Gotto, R. V., Holmes, J. M. C., Lowther, R. P. (1984). Description of the adult male Mycophylus roseus Hesse (Copepoda: Cyclopoida): a copepod with remarkable sensory equipment. Ir. Nat. J. 21: 305–313Google Scholar
  31. Gotto, R. V., Threadgold, L. T. (1980). Observations and speculations on the alate processes of the ascidicolous copepod Notopterophorus papilio (Cyclopoida: Notodelphydae). J. Zool., Lond. 190: 337–363Google Scholar
  32. Greenwood, J. G. (1976). Calanoid copepods of Moreton Bay (Queensland). I. Families Calanidae, Eucalanidae, and Paracalanidae. Proc. R. Soc. Queensl. 87: 1–28Google Scholar
  33. Griffiths, A. M. Frost B. W. (1976). Chemical communication in the marine planktonic copepods Calanus pacificus and Pseudocalanus sp. Crustaceana 30: 1–8Google Scholar
  34. Gurney, R. (1927). Copepoda and Cladocera of the plankton. Zoological results of the Cambridge Expedition to the Suez Canal, 1924. Trans. zool. Soc. London 22: 139–172Google Scholar
  35. Hill, L. L., Coker, R. E. (1930). Observations on mating habits of Cyclops. J. Elisha Mitchell Sci. Soc. 45: 206–220Google Scholar
  36. Hipeau-Jacquotte, R. (1987). A new cephalic type of presumed sense organ with naked dendritic ends in the atypical male of the parasitic copepod Pachypygus gibber (Crustacea). Cell Tissue Res. 245: 29–35Google Scholar
  37. Hipeau-Jacquotte, R. (1987). Ultrastructure and presumed function of the pleural dermal gland in the atypical male of the parasitic copepod Pachypygus gibber (Crustacea: Notodelphydae). J. crust. Biol. 7: 60–70Google Scholar
  38. Jacoby, C. A., Youngbluth, M. J. (1983). Mating behavior in three species of Pseudodiaptomus (Copepoda: Calanoida). Mar. Biol. 76: 77–86Google Scholar
  39. Katona, S. K. (1973). Evidence for sex pheromones in planktonic copepods. Limnol. Oceanogr. 18: 574–583Google Scholar
  40. Katona, S. K. (1975). Copulation in the copepod Eurytemora affinis (Poppe, 1880). Crustaceana 28: 89–94Google Scholar
  41. Landry, M. R. (1980). Detection of prey by Calanus pacificus: implications of the 1st antennae. Limnol. Oceanogr. 25: 545–549Google Scholar
  42. Laverack, M. S. (1968). On the receptors of marine invertebrates. Oceanogr. mar. Biol. A. Rev. 6: 249–324Google Scholar
  43. Laverack, M. S. (1988). The diversity of chemoreceptors. In: Atema, J., Fay, R. R., Popper, A. N., Tavolga, W. N. (eds.) Sensory biology of aquatic animals. Springer-Verlag, New York, p. 287–312Google Scholar
  44. Laverack, M. S., Barrientos, Y. (1985). Sensory and other superficial structures in living marine Crustacea. Trans. R. Soc. Edinb. Earth Sci. 76: 123–136Google Scholar
  45. Marshall, S. M., Orr, A. P. (1955). The biology of a marine copepod: Calanus finmarchicus (Gunnerus). Oliver & Boyd, EdinburghGoogle Scholar
  46. Mauchline, J. (1977). The integumental sensilla and glands of pelagic Crustacea. J. mar. biol. Ass. U.K. 55: 973–994Google Scholar
  47. Mauchline, J. (1988). Taxonomic value of pore pattern in the integument of calanoid copepods (Crustacea). J. Zool., Lond. 214: 697–749Google Scholar
  48. McIver, S. B. (1975). Structure of cuticular mechanoreceptors of arthropods. A. Rev. Entomol. 20: 381–397Google Scholar
  49. Mori, T. (1937). The pelagic copepods from the neighbouring waters of Japan. Yōkendō, TokyoGoogle Scholar
  50. Nishida, S. (1986). Structure and function of the cephalosome-flap organ in the family Oithonidae (Copepoda, Cyclopoida). Syllogeus 58: 385–391Google Scholar
  51. Noirot, C., Quennedey, A. (1974). Fine structure of insect epidermal glands. A. Rev. Entomol. 19: 61–80Google Scholar
  52. Ong, J. E. (1969). The fine structure of the mandibular sensory receptors in the brackish water calanoid copepod Gradioferens pectinatus. Z. Zellforsch. mikrosk. Anat. 97: 178–195Google Scholar
  53. Sars, G. O. (1903). Copepoda Calanoida. Calanidae, Eucalanidae, Paracalanidae, Pseudocalanidae, Aetideidae (part). Acc. Crustacea Norw. 4: 1–28Google Scholar
  54. Sato, T. (1913). Pelagic copepods. I. Bull. Hokkaido Fish. Exp. St. 1: 1–79 (In Japanese)Google Scholar
  55. Strickler, J. R., Bal, A. K. (1973). Setae of the 1st antennae of the copepod Cyclops scutifer: their structure and importance. Proc. natn. Acad. Sci. U.S.A. 70 2656–2659Google Scholar
  56. Tanaka, O. (1954). Note on Calanus tonsus Brady in Japanese waters. J. oceanogr. Soc. Japan. 10: 1–11Google Scholar
  57. Tanaka, O. (1956). The pelagic copepods of the Izu region, middle Japan. Systematic account II. Families Paracalanidae and Pseudocalanidae. Publ. Seto mar. biol. Lab. 3: 367–406Google Scholar
  58. Tanaka, O. (1960). Pelagic copepoda. Spec. Publs Seto mar. biol. Lab., Biol. Results Jap. Antarct. Res. Exped. 10: 1–177Google Scholar
  59. Uchima, M., Murano, M. (1988). Mating behavior of the marine copepod Oithona davisae. Mar. Biol. 99: 39–45Google Scholar
  60. Vaupel-Klein, J. C. von (1982). Structure of integumental perforations in the Euchirella messinensis female (Crustacea, Copepoda, Calanoida). Neth. J. Zool. 32: 374–394Google Scholar
  61. Vervoort, W. (1951). Plankton copepods from the Atlantic sector of the Antarctic. K. Ned. Akad. Wet., Verh. Afd. Nat. (Tweede Sect.). 47: 1–156Google Scholar
  62. Wellershaus, S. (1969). On the taxonomy of planktonic Copepoda Backwater (a South Indian Estuary). Veroff. Inst. Meeresforsch. Bremerh. 11: 245–286Google Scholar
  63. Zheng, Z., Li, S., Li, S., Cheng, B. (1982). Marine pelagic copepods in China. Vol. 2. Shanghai Science and Technology Pub. Co., Shanghai (In Chinese)Google Scholar

Copyright information

© Springer-Verlag 1989

Authors and Affiliations

  • S. Nishida
    • 1
  1. 1.Ocean Research InstituteUniversity of TokyoTokyoJapan

Personalised recommendations