Hostname: page-component-77c89778f8-7drxs Total loading time: 0 Render date: 2024-07-16T21:32:24.597Z Has data issue: false hasContentIssue false
  • English
  • Français

The Biology of Purpura Lapillus. Part II. Growth

Published online by Cambridge University Press:  11 May 2009

Hilary B. Moore
Hilary B. Moore
Affiliation:
Bermuda Biological Station, Bermuda
Get access Rights & Permissions [Opens in a new window]

Extract

In a previous paper (Moore, 1936) an account was given of certain variations in the shape and colour of the shell in Purpura, and it was pointed out that these variations are apparently controlled by diet. It was shown that growth ceases at the onset of sexual maturity, and at the same time other changes such as the thickening of the edge of the shell take place. It was shown also that both the proportion of the population exhibiting these changes, and the average size at which they occur, vary considerably from one locality to another, this variation also being apparently correlated with the nature of the animal's diet. The present paper consists of a study of the growth of the shell and soft parts and an attempt to show whether the observed differences in size at sexual maturity in different populations are to be accounted for by differences in the growth rate during the growing phase.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 23 , Issue 1 , November 1938 , pp. 57 - 66
Copyright
Copyright © Marine Biological Association of the United Kingdom 1938

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCE

Colton, H. S., 1916. On some varieties of Thais lapillus in the Mount Desert region, a study of individual ecology. Proc. Acad. Nat. Sci. Philadelphia, Vol. LXVIII, pp. 440–54.Google Scholar
Moore, H. B., 1936. The biology of Purpura lapillus. I. Shell variation in relation to environment. Journ. Mar. Biol. Assoc., Vol. XXI, pp. 61–89.CrossRefGoogle Scholar
Moore, H. B., 1937. The biology of Littorina littorea. Part I. Growth of the shell and tissues, spawning, length of life and mortality. Journ. Mar. Biol. Assoc., Vol. XXI, pp. 721–42.CrossRefGoogle Scholar
Moore, H. B., 1938. The biology of Purpura lapillus. Part III. Life history and relation to environmental factors. Journ. Mar. Biol. Assoc., Vol. XXIII, pp. 67–74.CrossRefGoogle Scholar
Pelseneer, P., 1935. Essai d'éthologie zoologique d'après l'étude des mollusques, 662 pp. Brussels.Google Scholar