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The grazing rate of planktonic copepods

Published online by Cambridge University Press:  11 May 2009

D. T. Gauld
D. T. Gauld
Affiliation:
Department of Zoology, University of Edinburgh, and the Marine Station, Millport
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Extract

The filtering rate of four species of marine planktonic copepods was measured by estimating the rate at which they consumed cultures of Chlamydomonas.

The filtering rate was independent of the concentration of the food organism and it is concluded that the copepods were acting as filter feeders.

The filtering rates were much greater than those reported by Fuller & Clarke (1936) and Fuller (1937), but agreed with those reported by Harvey (1937).

Some evidence was obtained that grazing was restricted to some only of the 24 hr., most probably to the hours of darkness.

The filtering rates were approximately proportional to the square of the linear dimensions of the copepod.

The purely mechanical selection suggested by Fuller (1937) to account for differences in filtering rates obtained with different species of diatoms cannot account for all the differences which have been observed.

It is probable that the copepods could obtain sufficient particulate food in the sea by filtering a daily volume of water corresponding to the filtering rates found.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 29 , Issue 3 , February 1951 , pp. 695 - 706
Copyright
Copyright © Marine Biological Association of the United Kingdom 1951

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References

REFERENCES

Bogorov, B. G., 1934. Seasonal changes in biomass of Calanus finmarchicus in the Plymouth area in 1930. Journ. Mar. Biol. Assoc., Vol. 19, pp. 585–612.CrossRefGoogle Scholar
Crawshay, L. R., 1915. Notes on experiments in the keeping of plankton animals under artificial conditions. Journ. Mar. Biol. Assoc., Vol. 10, pp. 555–76.CrossRefGoogle Scholar
Dakin, J. W., 1908. Notes on the alimentary canal and food ofthe Copepoda. Internat. Rev. Hydrobiol. Hydrograph., Bd. 1, pp. 772–82.CrossRefGoogle Scholar
Esterly, J. L., 1916. The feeding habits and food of pelagic copepods and the question of nutrition by organic substances in solution in the water. Univ. Calif. Pbl. Zool., Vol. 16, (No. 14), pp. 171–84.Google Scholar
Fuller, J. L., 1937. Feeding rate of Calanus finmarchicus in relation to environmental conditions. Biol. Bull. Woods Hole, Vol. 72. pp. 233–46.CrossRefGoogle Scholar
Fuller, J. L. & Clarke, G. L., 1936. Further experiments on the feeding of Calanus finmarchicus. Biol. Bull. Woods Hole, Vol. 70, pp. 308–20.CrossRefGoogle Scholar
Harvey, H. W., 1937. Note on selective feeding by Calanus. Journ. Mar. Biol. Assoc., Vol. 22, pp. 97–100.CrossRefGoogle Scholar
Krogh, A., 1931. Dissolved substance as food for aquatic organisms. Biol. Rev., Vol. 6, pp. 412–42.CrossRefGoogle Scholar
Lebour, M. V., 1922. The food of plankton organisms. Journ. Mar. Biol. Assoc., Vol. 12, pp. 644–77.CrossRefGoogle Scholar
Lebour, M. V., 1930. The Planktonic Diatoms of Northern Seas. London: The Ray Soc.Google Scholar
Lohmann, H., 1908. Untersuchungen zur Feststellung des vollständigen Gehaltes des Meeres an Plankton. Wiss. Merresunters., Abt. Kiel, N.F., Bd. 10, pp. 129–370.Google Scholar
Lohmann, H., 1909. Ueber die Quellen der Nahrung der Meerestiere und Pütters Untersuchungen Hierüber. Internat. Rev. Hydrobiol. Hydrograph., Bd. 2, pp. 10–30.CrossRefGoogle Scholar
Lohmann, H., 1911. Ueber das Nannoplankton und die Zentrifugierung kleinster Wasserproben zur Gewinning desselben im lebenden Zustande. Internat. Rev. Hydrobiol. Hydrograph., Bd. 4, pp. 1–38.Google Scholar
Lowndes, A. G., 1935. The swimming and feeding of certain calanoid copepods. Proc Zool. Soc. Lond., 1935, pp. 687–715.CrossRefGoogle Scholar
Marshall, S. M., 1924. The food of Calanus finmarchicus during 1923. Journ. Mar. Biol. Assoc., Vol. 13, pp. 473–9.CrossRefGoogle Scholar
Pütter, A., 1907. Die Ernährung der Wassertiere. Zeits. Allg. Physiol., Bd. 7, pp. 283–320.Google Scholar
Pütter, A., 1909. Die Ernährung der Wassertiere und der Stoffhaushalt der Gewässer. Jena.Google Scholar
Pütter, A., 1925. Die Ernährung der Copepoden. Arch. Hydrobiol., Bd. 15, pp. 70–117.Google Scholar
Raymont, J. E. G. & Gross, F., 1942. On the feeding and breeding of Calanus finmarchicus under laboratory conditions. Proc. R. Soc. Edin. B, Vol. 61, pp. 267–87.Google Scholar
Riley, G. A., Stommel, H. & Bumpus, D. F., 1949. Quantitative ecology of the plankton of the western North Atlantic. Bull. Bingham Oceanog. Coll., Vol. 12, Art. 3, 169 pp.Google Scholar
Wilson, D. P., 1946. The triradiate and other forms of Nitzschia closterium (Ehrenberg) Wm. Smith, forma minutissima of Allen and Nelson. Journ. Mar. Biol. Assoc., Vol. 26, pp 235–70.CrossRefGoogle Scholar