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Further Observations on the Occurrence of ‘Teeth’ in the Dog-Whelk Nucella Lapillus

Published online by Cambridge University Press:  11 May 2009

J. H. Crothers
Affiliation:
Field Studies Council, Nettlecombe Court, Williton, Taunton, Somerset

Extract

The formation of ‘teeth’ in immature Nucella lapillus (L.) is indicative of a stoppage in growth. Along the western coasts of southern Britain the proportion of individuals showing these growth disturbances is predictably related to the exposure of the shore to wave action. Farther east the proportion is much higher but not obviously so related. Sharp discontinuities separate eastern and western populations. Possible reasons for the differences are discussed and it is concluded that great care must be exercised when applying information about this species derived from the one coast to situations on the other. The potential value of this species as an indicator of environmental change is considered.

Type
Research Article
Copyright
Copyright © Marine Biological Association of the United Kingdom 1971

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References

REFERENCES

Ballantine, W. J. 1961. A biologically-defined exposure scale for the comparative description of rocky shores. Fid Stud., Vol. 1, part 3, pp. 116.Google Scholar
Berry, R. J. & Crothers, J. H. 1968. Stabilizing selection in the dog-whelk (Nucella lapillus). J. Zool., Lond., Vol. 155, pp. 517.CrossRefGoogle Scholar
Berry, R. J. & Crothers, J. H. 1970. Genotypic stability and physiological tolerance in the dog-whelk, Nucella lapillus (L.). J. Zool., Lond., Vol. 162, pp. 293302.CrossRefGoogle Scholar
Bryan, G. W. 1969. The effects of oil-spill removers (‘detergents’) on the gastropod Nucella lapillus on a rocky shore and in the laboratory. J. mar. biol. Ass. U.K., Vol. 49, pp. 1067–91.CrossRefGoogle Scholar
Cooke, A. H. 1915. The geographical distribution of Purpura lapillus. Proc. malac. Soc. Lond., Vol. 11, pp. 192209.Google Scholar
Cowell, E. B. & Crothers, J. H. 1970. On the occurrence of multiple rows of ‘teeth’ in the shell of the dog-whelk Nucella lapillus. J. mar. biol. Ass. U.K., Vol. 50, pp. 1101–11.CrossRefGoogle Scholar
Crapp, G. B. 1971. The ecological effects of stranded oil. London: Institute of Petroleum. (In press.)Google Scholar
Crisp, D. J. & Knight-Jones, E. W. 1954. Discontinuities in the distribution of shore animals in north Wales. Bardsey Bird Fld Obs. Rep. (1954), pp. 2934.Google Scholar
Crisp, D. J. & Southward, A. J. 1958. The distribution of intertidal organisms along the coasts of the English Channel. J. mar. biol. Ass. U.K., Vol. 37, pp. 157208.CrossRefGoogle Scholar
Feare, C. J. 1970. Aspects of the ecology of an exposed shore population of dog-whelks Nucella lapillus (L.). Oecologia, Vol. 5, pp. 118.CrossRefGoogle Scholar
Hawthorne, J. B. 1965. The eastern limit of distribution Monodonta lineata (da Costa) in the English Channel. J. Conch., Vol. 25, pp. 348–52.Google Scholar
Howell, B. R. & Shelton, R. G. J. 1970. The effect of china clay on the bottom fauna of St Austell and Mevagissey Bays. J. mar. biol. Ass. U.K., Vol. 50, pp. 593607.Google Scholar
Kitching, J. A.Muntz, L. & Ebling, F. J. 1966. The ecology of Lough Ine XV. The ecological significance of shell and body forms in Nucella. J. Anim. Ecol., Vol. 35, pp. 113–26.CrossRefGoogle Scholar
Largen, M. J. 1967a. The diet of the dog-whelk, Nucella lapillus (Gastropoda: Prosobranchia). J. Zool., Land., Vol. 151, pp. 123–7.Google Scholar
Largen, M. J. 1967b. The influence of water temperature upon the life of the dog-whelk Thais lapillus (Gastropoda: Prosobranchia). J. Anim. Ecol., Vol. 36, pp. 207–14.CrossRefGoogle Scholar
Lewis, J. R. 1964. The Ecology of Rocky Shores. 323 pp. London: English Universities Press.Google Scholar
Moore, H. B. 1936. The biology of Purpura lapillus L. Shell variation in relation to environment. J. mar. biol. Ass. U.K., Vol. 21, pp. 6189.CrossRefGoogle Scholar
Moore, H. B. 1938a. The biology of Purpura lapillus. II. Growth. J. mar. biol. Ass. U.K., Vol. 23, pp. 5766.CrossRefGoogle Scholar
Moore, H. B. 1938b. The biology of Purpura lapillus. III. Life history in relation to environment. J. mar. biol. Ass. U.K., Vol. 23, pp. 6774.CrossRefGoogle Scholar
Orton, J. H. 1930. On the oyster drills of the Essex estuaries. Essex Nat. Vol. 22, pp. 298306.Google Scholar
Portmann, J. E. 1970. The effect of china clay on the sediments of St Austell and Mevagissey Bays. J. mar. biol. Ass. U.K., Vol. 50, pp. 577–91.CrossRefGoogle Scholar
Staiger, H. 1957. Genetical and morphological variation in Purpura lapillus with respect to local and regional differentiation of population groups. Année biol., Vol. 61, pp. 251–8.Google Scholar