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Clonal diversity and rockpool size in the marine ostracod, Callistocythere badia

Published online by Cambridge University Press:  01 June 2000

Susan L. Hull  and
Daniel Rollinson
Susan L. Hull
Affiliation:
University College Scarborough, Filey Road, Scarborough, YO11 3AZ, UK
Daniel Rollinson
Affiliation:
University College Scarborough, Filey Road, Scarborough, YO11 3AZ, UK
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Abstract

Samples containing the marine ostracod Callistocythere badia were collected from upper shore rockpools on Filey Brigg, north-east England in order to examine the life cycle and genetic structure of the species. Reproduction occurred during spring/summer after which the adults died; juveniles over-wintered as A-1 instars. No males were ever found during the study. Analysis at three polymorphic loci (Gpi, Pgm and Mpi), showed significant deviations from Hardy–Weinberg equilibrium, and significant linkage equilibrium at and between all loci. The genetic data and absence of males confirm that Callistocythere is an asexual species. There was a significant positive relationship between the number of clones found within a pool and rockpool size, but not with algal habitat heterogeneity.

Type
SHORT COMMUNICATION
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 80 , Issue 3 , June 2000 , pp. 551 - 552
Copyright
2000 Marine Biological Association of the United Kingdom

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