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Seasonal Changes in the Ovary of the Immature Hake, Merlucius merluccius L.

Published online by Cambridge University Press:  11 May 2009

C. F. Hickling
C. F. Hickling
Affiliation:
Fisheries Laboratory, Lowestoft.
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Extract

A seasonal variation is found in the ovaries of immature hake (Merlucius merluccius L.).

There appears to be a seasonal change in the rate at which young eggs are formed from resting oocytes, as indicated (1) by the change in the relative abundance of nuclei in synapsis, and (2) by the change in the average diameter of the eggs in the egg-stock in the ovary. These processes show considerable correspondence in their season of incidence with the ovarian cycle of the mature and adolescent fish.

A physiological rhythm has now been detected in both somatic tissues and gonad in the immature hake, which foreshadows the physiological rhythm associated with the spawning cycle in the mature hake. The implication of this on the question of the formation of “growth-rings” in the skeletal structures is briefly discussed.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 20 , Issue 2 , August 1935 , pp. 443 - 461
Copyright
Copyright © Marine Biological Association of the United Kingdom 1935

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References

LITERATURE CONSULTED

Birtwistle, W., and Lewis, H. M. 1924. Hake Investigations. Rep. Lancs. Sea-Fish. Lab., 1924, Liverpool, 1925.Google Scholar
Dahl, K. 1907. The Scales of the Herring. Rep. Norwegian Fish. Invest., II, 6, Bergen, 1907.Google Scholar
Fisher, R. A. 1930. Statistical methods for research workers. 3rd Ed., Oliver and Boyd, London, 1930.Google Scholar
Graham, M. 1924. The Annual cycle in the life of Mature Cod in the North Sea. Fish. Invest. Ser. II, Vol. VI, 6. Ministry of Agriculture and Fisheries, London, 1924.Google Scholar
Graham, M. 1928 (i). Studies of age-determination in Fish. Part I. A study of the growth-rate of Codling, etc. Fish. Invest. Ser. II, Ser. II, Vol. XI, 2, 1928.Google Scholar
Graham, M. 1928 (ii). Studies of age-determination in Fish. Part II. A Survey of the Literature. Fish. Invest. Ser. II, Ser. II, Vol. XI, 3, 1928.Google Scholar
Hann, H. W. 1927. The Germ-cells of Cottus bairdii. Journ. Morph. and Physiol., Philadelphia, Vol. 43.CrossRefGoogle Scholar
Hickling, C. F. 1930. The Natural History of the Hake. Part III. Seasonal Changes in the condition of the Hake. Fish. Invest., Ser. II, Vol. XII, No. 1, 1930, Ministry of Agriculture and Fisheries, London, 1930.Google Scholar
Hickling, C. F. 1933. The Natural History of the Hake. Part IV. Age-Determination and the Growth-Rate. Fish. Invest., XIII, No. 2, 1933.Google Scholar
Ramalho, A. 1932. Fluctuation Saisonnière du poids moyen de la Sardine. C.R. Soc. Biol. Paris, Vol. CXIII, No. 23, pp. 754–756.Google Scholar
Russell, E. S. 1914. Report on market measurements in relation to the English Haddock Fishery. Fish. Invest. Ser. II, Vol. I, Ministry of Agriculture and Fisheries, London, 1914.Google Scholar
Russell, E. S. 1922. Market Measurements in relation to the English Cod Fishery. Fish. Invest. Ser. II, Vol. V, No. 1, London, 1922.Google Scholar
Schneider, G. 1910. Über die Altersbestimmung bei Heringen nach den Zuwachszonen der Schuppen. Ur Svenska Hydrografiskbiologiska Komm. Skrifter, Stockholm, 1910.Google Scholar
Wheeler, J. F. G. 1924. The Growth of the Egg in the Dab. Quart. Journal Microscopical Science, Vol. 68, N.S., No. 272, London, November, 1924.Google Scholar
Wilson, E. B. 1925. The Cell in Development and Heredity. 3rd Edition. The Macmillan Company, New York, 1925.Google Scholar