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On the biology of Calanus finmarchicus: XIII. Seasonal change in weight, calorific value and organic matter

Published online by Cambridge University Press:  11 May 2009

G. W. Comita ,
S. M. Marshall  and
A. P. Orr
G. W. Comita
Affiliation:
Department of Zoology, North Dakota State University, Fargo
S. M. Marshall
Affiliation:
Marine Station, Millport
A. P. Orr
Affiliation:
Marine Station, Millport
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Extract

The length, weight, calorific value and organic matter content of Calanus finmarchicus, Stage V, males and females, were measured in monthly samples taken from April 1962 to June 1963.

There is considerable variation throughout the year and all stages had their maxima of weight and calorific value in spring, 1962, and winter 1962–63.

The calorific value and weight are closely correlated so that, knowing the dry weight, the calorific value can be calculated from it. The correlation is closest in Stage V and, for these, only the dry weight need be known. Since the relation-ship is slightly different for males and females the sex of the adult must be known as well as the dry weight; curves showing these relationships are given.

The calorific value obtained from organic-matter analysis at times deviates widely from the values obtained in direct bomb calorimetry, and it is concluded that in the method used not all the fat is accounted for.

In weight, calorific value, and organic matter, but not in length, Stage V for a good part of the year show higher figures than adults.

In comparing the weights with those of other years and other places, the annual pattern is found to vary considerably. The spring maximum seems to occur every year, but there may be either a maximum or a minimum in autumn and winter.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 46 , Issue 1 , February 1966 , pp. 1 - 17
Copyright
Copyright © Marine Biological Association of the United Kingdom 1966

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References

REFERENCES

Bogorov, V. G., 1933. Modifications in the biomass of Calanus finmarchicus in accordance with its age. Byull. gosud. okeanogr. Inst., No. 8, 16 pp. (English Summary.)Google Scholar
Bogorov, V. G., 1934. Seasonal changes in biomass of Calanus finmarchicus in the Plymouth Area in 1930. J. mar. biol. Ass. U.K., Vol. 19, pp. 585–612.CrossRefGoogle Scholar
Comita, G. W. & Schindler, D. W., 1963. Calorific values of micro-crustacea. Science, N.Y., N.S., Vol. 140, pp. 1394–96.CrossRefGoogle Scholar
Conover, R. J., 1960. The feeding behaviour and respiration of some marine plank-tonic Crustacea. Biol. Bull. mar. biol. Lab., Woods Hole, Vol. 119, pp. 399–415.CrossRefGoogle Scholar
Conover, R. J., 1964. Food relations and nutrition of zooplankton. Occ. Publs, Narragansett mar. Lab., Vol. 2, pp. 81–91.Google Scholar
Corner, E. D. S., 1961. On the nutrition and metabolism of zooplankton. I. Preliminary observations on the feeding of the marine copepod Calanus helgolandicus (Claus). J. mar. biol. Ass. U.K., Vol. 41, pp. 5–16.CrossRefGoogle Scholar
Cowey, C. B. & Corner, E. D. S., 1963. On the nutrition and metabolism of zooplankton. II. The relationship between the marine copepod Calanus helgolandicus and paniculate material in Plymouth seawater, in terms of amino acid composition. J. mar. biol. Ass. U.K., Vol. 43, pp. 495–511.CrossRefGoogle Scholar
Deevey, G. B., 1960. Relative effects of temperature and food on seasonal variations in length of marine copepods in some eastern American and western European waters. Bull. Bingham oceanogr. Coll., Vol. 17, pp. 54–85.Google Scholar
Farkas, T. & Herodek, S., 1964. The effect of environmental temperature on the fatty acid composition of crustacean plankton. J. Lipid Res., Vol. 5, pp. 369–73.CrossRefGoogle ScholarPubMed
Johnson, M. J., 1949. A rapid micromethod for estimation of non-volatile organic matter. J. biol. Chem., Vol. 181, pp. 707–11.CrossRefGoogle ScholarPubMed
Littlepage, J. L., 1964. Seasonal variation in lipid content of two antarctic marine Crustacea. Actual, sci. indust., 1312, pp. 463–70Google Scholar
Marshall, S. M., Nicholls, A. G. & Orr, A. P., 1934. On the biology of Calanus finmarchicus. V. Seasonal distribution, size, weight, and chemical composition in Loch Striven in 1933, and their relation to the phytoplankton. J. mar. biol. Ass. U.K., Vol. 19, pp. 793–827.CrossRefGoogle Scholar
Marshall, S. M. & Orr, A. P., 1964. Carbohydrate and organic matter in suspension in Loch Striven during 1962. J. mar. biol. Ass. U.K., Vol. 44, pp. 285–92.CrossRefGoogle Scholar
Orr, A. P., 1934. On the biology of Calanus finmarchicus. IV. Seasonal changes in the weight and chemical composition in Loch Fyne. J. mar. biol. Ass. U.K., Vol. 19, pp. 613–32.CrossRefGoogle Scholar
Slobodkin, L. B. & Richman, S., 1961. Calories/gm in species of animals. Nature, Lond., Vol. 191, p. 299.CrossRefGoogle Scholar