Marine Biology

, Volume 111, Issue 1, pp 45–48 | Cite as

Diet of calyptopes of the euphausiidEuphausia pacifica in the Yellow Sea

  • H. -L. Suh
  • T. Toda
  • M. Terazaki


Foregut contents of calyptopes (the first feeding stage) ofEuphausia pacifica Hansen, collected from the Yellow Sea in June 1989, were examined using scanning electron microscopy with the dry-fracturing method. There was no clear evidence of phytoplankton ingestion by calyptopes. The foregut contents consisted entirely of amorphous organic detritus, crustacean remains and inorganic particles. The inorganic particles adhered to amorphous organic detritus, and bacterial populations were found on peritrophic membranes of fecal pellets which enveloped crustacean remains. These materials seemed to have originated from aggregates of organic and inorganic detritus. It is quite possible that the detrital aggregates are utilized extensively as food by calyptopes ofE. pacifica in the Yellow Sea.


Microscopy Electron Microscopy Scanning Electron Microscopy Phytoplankton Detritus 
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.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Literature cited

  1. Alldredge, A.L. (1972). Abandoned larvacean houses: a unique food source in the pelagic environment. Science, N.Y. 177: 885–887Google Scholar
  2. Alldredge, A. L. (1976). Discarded appendicularian houses as sources of food, surface habitats, and particulate organic matter in planktonic environments. Limnol. Oceanogr. 21: 14–23Google Scholar
  3. Alldredge, A. L., Silver, M. W. (1988). Characteristics, dynamics and significance of marine snow. Prog. Oceanogr. 20: 41:82CrossRefGoogle Scholar
  4. Anger, K., Dawirs, R. R. (1981). Influence of starvation on the larval development ofHyas araneus (Decapoda, Majidae). Helgoländer Meeresunters. 34: 287–311Google Scholar
  5. Banse, K. (1990). New views on the degradation and disposition of organic particles as collected by sediment traps in the open sea. Deep-Sea Res. 37: 1177–1195CrossRefGoogle Scholar
  6. Dawirs, R. R. (1987). Influence of limited starvation periods on growth and elemental composition (C, N, H) ofCarcinus maenas (Decapoda: Portunidae) larvae reared in the laboratory. Mar. Biol. 93: 543–549CrossRefGoogle Scholar
  7. Gowing, M. M., Silver, M. W. (1985). Minipellets: a new and abundant size class of marine fecal pellets. J. mar. Res. 43: 395–418Google Scholar
  8. Hamner, W. M., Hamner, P. P., Obst, B. S., Carleton, J. H. (1989). Field observations on the ontogeny of schooling ofEuphausia superba furciliae and its relationship to ice in Antarctic waters. Limnol. Oceanogr. 34: 451–456Google Scholar
  9. Johnson, B. D., Cooke, R. C. (1980). Organic particle and aggregate formation resulting from the dissolution of bubbles in seawater. Limnol. Oceanogr. 25: 653–661Google Scholar
  10. Lasker, R. (1966). Feeding, growth, respiration, and carbon utilization of a euphausiid crustacean. J. Fish. Res. Bd. Can. 23: 1291–1317Google Scholar
  11. Marschall, H.-P. (1985). Structural and functional analyses of the feeding appendages of krill larvae. In: Siegfried, W. R., Condy, P. R., Laws, R. M. (eds.) Antarctic nutrient cycles and food webs. Springer-Verlag, Berlin, p. 346–354Google Scholar
  12. Mauchline, J. (1980). The biology of euphausiids. Adv. mar. Biol. 18: 373–623Google Scholar
  13. Mauchline, J., Fisher, L. R. (1969). The biology of euphausiids. Adv. mar. Biol. 7: 1–454Google Scholar
  14. May, R. C. (1974). Larval mortality in marine fishes and the critical period concept. In: Blaxter, J. H. S. (ed.) The early life history of fish. Springer-Verlag, Berlin, p. 3–19Google Scholar
  15. McCave, I. N. (1984). Size spectra and aggregation of suspended particles in the deep ocean. Deep-Sea Res. 31: 329–352CrossRefGoogle Scholar
  16. Nemoto, T. (1967). Feeding pattern of euphausiids and differentiations in their body characters. Inf. Bull. Planktol. Japan, Comm. Number of Dr. Matsue: 157–171Google Scholar
  17. Ohman, M. D. (1984). Omnivory byEuphausia pacifica: the role of copepod prey. Mar. Ecol. Prog. Ser. 19: 125–131Google Scholar
  18. Ritz, D. A., Hosie, G. W., Kirkwood, R. J. (1990). Diet ofNyctiphanes australis Sars (Crustacea: Euphausiacea). Aust. J. mar. Freshwat. Res. 41: 365–374Google Scholar
  19. Ross, R. M. (1981). Laboratory culture and development ofEuphausia pacifica. Limnol. Oceanogr. 26: 235–246Google Scholar
  20. Ross, R. M., Quetin, L. B. (1989). Energetic cost to develop to the first feeding stage ofEuphausia superba Dana and the effect of delays in food availability. J. exp. mar. Biol. Ecol. 133: 103–127CrossRefGoogle Scholar
  21. Sheldon, R. W., Evelyn, T. P. T., Parsons, T. R. (1967). On the occurrence and formation of small particles in seawater. Limnol. Oceanogr. 12: 367–375Google Scholar
  22. Toda, T., Suh, H.-L., Nemoto, T. (1989). Dry fracturing: a simple technique for scanning electron microscopy of small crustaceans and its application to internal observations of copepods. J. Crustacean. Biol. (Lawrence, Kansas) 9: 409–413Google Scholar
  23. Youngbluth, M. J. (1982). Utilization of a fecal mass as food by the pelagic mysis larva of the penaeid shrimpSolenocera atlantidis. Mar. Biol. 66: 47–51CrossRefGoogle Scholar

Copyright information

© Springer-Verlag 1991

Authors and Affiliations

  • H. -L. Suh
    • 1
  • T. Toda
    • 2
  • M. Terazaki
    • 2
  1. 1.Department of Oceanography, College of Natural SciencesChonnam National UniversityKwangjuRepublic of Korea
  2. 2.Ocean Research InstituteUniversity of TokyoTokyoJapan

Personalised recommendations