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Littoral Distributions and Evidence For Differential Post-Settlement Selection of the Morphs of Actinia Equina

Published online by Cambridge University Press:  11 May 2009

D. L. J. Quicke ,
A. M. Donoghue ,
T. F. Keeling  and
R. C. Brace
D. L. J. Quicke
Affiliation:
Department of Zoology, University of Nottingham, University Park, Nottingham NG7 2RD
A. M. Donoghue
Affiliation:
Department of Zoology, University of Nottingham, University Park, Nottingham NG7 2RD
T. F. Keeling
Affiliation:
Department of Zoology, University of Nottingham, University Park, Nottingham NG7 2RD
R. C. Brace
Affiliation:
Department of Zoology, University of Nottingham, University Park, Nottingham NG7 2RD
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Extract

Examination of the intertidal distributions of isozyme and pedal colour phenotypes of Actinia equina L. has shown that anemones displaying column coloration ranging from red to brown, are divisible into three, ecologically distinct forms in Britain, which we currently interpret as being morphs of a single species. These are termed the upper (U), mid (M) and lower (L) shore morphs, which are relatively most abundant on the upper mid, lower mid and low shores, respectively; not all morphs are represented on some shores. The U, M and L morphs may be separated on the basis of their hexokinase and malate dehydrogenase phenotypes. The U morph is homozygous slow and fast respectively, the L morph is slow and fast respectively whilst the M morph is heterozygous at both loci. Data on linkage of pedal disc colour and alleles at a tetrazolium oxidase locus, and of an association between alleles at the hexokinase locus and those at an esterase locus, are given.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 65 , Issue 1 , February 1985 , pp. 1 - 20
Copyright
Copyright © Marine Biological Association of the United Kingdom 1985

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