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The Periodic Growth of Scales in Gadidæ and Pleuronectidæ as an Index of Age

Published online by Cambridge University Press:  11 May 2009

J. Stuart Thomson
J. Stuart Thomson
Affiliation:
Lecturer on Biology, Municipal Technical Schools, Plymouth.
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Extract

The first part of a lengthened and detailed statistical paper on the structure and seasonal growth of Gadoid and Pleuronectoid scales will shortly be issued from the Marine Laboratory.

The forthcoming paper will show by means of tabulated statistics that scale growth is accelerated during the warmer season of the year; but diminished during the colder season in such a methodic manner as to cause the formation of annual rings. The formation of these annual rings results from the fact that the lines of growth on the scale surface are comparatively widely separated from one another in that portion of the scale formed during the warmer season of the year; but much less widely separated in that part built up during the colder season.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 6 , Issue 3 , January 1902 , pp. 373 - 375
Copyright
Copyright © Marine Biological Association of the United Kingdom 1902

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References

page 374 note * “Die Altersbestimmung des Karpfen an seiner Schuppe,” von Dr. Hoffbauer; Jahresbericht des Schlesischen Fischerei-Vereins für das Jahr 1899.

page 375 note † Compare Cunningham, , Marketable Marine Fishes, 1896, p. 295.Google Scholar