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Changes in the Ormer Populations of Guernsey and Jersey

Published online by Cambridge University Press:  11 May 2009

G. R. Forster ,
G. W. Potts  and
R. Swinfen
G. R. Forster
Affiliation:
The Laboratory, Marine Biological Association, Citadel Hill, Plymouth, PLl 2PB
G. W. Potts
Affiliation:
The Laboratory, Marine Biological Association, Citadel Hill, Plymouth, PLl 2PB
R. Swinfen
Affiliation:
The Laboratory, Marine Biological Association, Citadel Hill, Plymouth, PLl 2PB
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Extract

The ormer, Haliotis tuberculata L. is a greatly prized species in the Channel Isles. Since the original survey of the ormer population of Guernsey and the subsequent tagging experiments (Forster, 1962, 1967), periodical short visits to the island have been made to investigate the stocks of ormers, especially in areas fished by divers; in 1968 and 1974 visits were also made to Jersey. These surveys were all made at the request of the local Sea Fisheries Committee. In this paper we seek to bring together those aspects of the results which are of scientific interest and to discuss the role of various factors which may have affected the ormer populations particularly that of changes in temperature over the last hundred years. The reproductive biology of this species has recently been reported on by Hayashi (1980).

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 62 , Issue 3 , August 1982 , pp. 717 - 727
Copyright
Copyright © Marine Biological Association of the United Kingdom 1982

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References

REFERENCES

Crofts, D. R., 1938. The development of Haliotis tuberculata, with special reference to organogenesis during torsion. Philosophical Transactions of the Royal Society (B), 228, 219–268.Google Scholar
Forster, G. R., 1962. Observations on the ormer population of Guernsey. Journal of the Marine Biological Associations of the United Kingdom, 42, 493–498.CrossRefGoogle Scholar
Forster, G. R., 1967. The growth of Haliotis tuberculata: results of tagging experiments in Guernsey 1963–65. Journal of the Marine Biological Association of the United Kingdom, 47, 287–300.Google Scholar
Hayashi, I., 1980. The reproductive biology of the ormer, Haliotis tuberculata. Journal of the Marine Biological Association of the United Kingdom, 60, 415–430.CrossRefGoogle Scholar
Koike, Y., 1978. Biological and ecological studies on the propagation of the ormer, Haliotis tuberculata L. 1. Larval development and growth of juveniles. Mer (Bulletin de la Société francojaponaise d'oceanographie), 16, 124–134.Google Scholar
Maddock, L. & Swann, C. L., 1977. A statistical analysis of some trends in sea temperature and climate in the Plymouth area in the last 70 years. Journal of the Marine Biological Association of the United Kingdom, 57, 317–338.CrossRefGoogle Scholar
Morse, D. E., Hooker, N., Jensen, L. & Duncan, H., 1981. Induction of larval abalone settling and metamorphosis by γ-aminobutyric acid and its congeners from crustose red algae. II. Applications to cultivation, seed-production and bioassays; principal causes of mortality and interference. In Proceedings of the World Mariculture Society, Atlanta, 1979. (In the Press.)Google Scholar
Pingree, R. D. & Griffiths, D. K., 1980. Currents driven by a steady uniform wind stress on the shelf seas around the British Isles. Oceanologica acta, 3, 227–236.Google Scholar
Pingree, R. D. & Maddock, L., 1977. Tidal residuals in the English Channel. Journal of the Marine Biological Association of the United Kingdom, 57, 339–354.CrossRefGoogle Scholar
Southward, A. J., Butler, E. I. & Pennycuick, L., 1975. Recent cyclic changes in climate and in abundance of marine life. Nature, London, 253, 714–717.Google Scholar
Stephenson, T. A., 1923. Notes on Haliotis tuberculata. 1. Journal of the Marine Biological Association of the United Kingdom, 13, 480–495.Google Scholar