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Further Analysis of Individual Spacing within Aggregations of the Anemone, Actinia Equina

Published online by Cambridge University Press:  11 May 2009

R. C. Brace  and
D. L. J. Quicke
R. C. Brace
Affiliation:
Department of Zoology, University of Nottingham, University Park, Nottingham NG7 2RD
D. L. J. Quicke
Affiliation:
Department of Zoology, University of Nottingham, University Park, Nottingham NG7 2RD
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Extract

We have recently assessed phenotypic and genotypic diversity within an aggregation of the intertidal beadlet anemone, Actinia equina L., located at Burniston in N. Yorkshire, on the east coast of Britain (Quicke & Brace, 1983). The study was undertaken in order to provide information relating to the role of intraspecific aggression (Bonnin, 1964; Brace & Pavey, 1978; Brace, Pavey & Quicke, 1979) in modifying the spacing of individuals. Limited work on the genus Actinia (A. tenebrosa Farquhar) has already indicated that whilst genetically dissimilar anemones display aggression towards one another, auto-genotypic aggression is minimal (Ayre, 1982), as is also the case for the clonal anemone, Anthopleura elegantissima (Brandt) (Francis, 1973a,b,1976). We therefore anticipated that aggressive interactions would promote auto-genotypic clustering, initiated by the local settlement of the asexually produced, brooded young (Carter & Thorp, 1979; Gashout & Ormond, 1979; Orr, Thorpe & Carter, 1982), and that correspondingly, genetic diversity within aggregations of anemones would be low.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 65 , Issue 1 , February 1985 , pp. 35 - 53
Copyright
Copyright © Marine Biological Association of the United Kingdom 1985

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