Abstract

Results submitted by mainly amateur diving groups during Underwater Conservation Year 1977 in the United Kingdom show that there are regional differences in the relationship between both size and shape of specimens of the European sea-urchin Echinus esculentus Linnaeus and the depth at which they occur. Populations from South-West England are significantly bigger at all depths than those from the other areas surveyed, those from Western Scotland increase in size more rapidly with increasing depth of water, and those from the North Sea decrease in size with increasing depth. Two sites surveyed in South-West Ireland show that exposure may affect the size of urchins inhabiting shallow waters. The results are compared with those of a similar survey by Larsson (1968) on the same species in Swedish waters.

 
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Bibliographic Data

Short Form
Nichols, 1982, Aust. Mus. Mem. 16: 147–163
Author
David Nichols
Year
1982
Title
Papers from the Echinoderm Conference. 9. A biometrical study of populations of the European sea-urchin Echinus esculentus (Echinodermata: Echinoidea) from four areas of the British Isles
Serial Title
Australian Museum Memoir
Volume
16
Start Page
147
End Page
163
DOI
10.3853/j.0067-1967.16.1982.363
Language
English
Date Published
31 December 1982
Cover Date
31 December 1982
ISBN
ISBN 0-7305-5743-6
ISSN
0067-1967
CODEN
AUNMA5
Publisher
The Australian Museum
Place Published
Sydney, Australia
Subjects
ECHINODERMATA
Digitized
04 February 2009
Available Online
04 March 2009
Reference Number
363
EndNote
/Uploads/Journals/17593/363.enw
Title Page
/Uploads/Journals/17593/363.pdf
File size: 130kB
Complete Work
/Uploads/Journals/17593/363_complete.pdf
File size: 1438kB