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Asymmetry in the embryonic chromatophore pattern of the squid Loligo forbesi (Mollusca: Cephalopoda): a proxy for developmental instability

Published online by Cambridge University Press:  19 September 2003

F.C. Gowland ,
P.R. Boyle  and
L.R. Noble
F.C. Gowland*
Affiliation:
Department of Zoology, University of Aberdeen, Scotland, AB24 2TZ, UK
P.R. Boyle
Affiliation:
Department of Zoology, University of Aberdeen, Scotland, AB24 2TZ, UK
L.R. Noble
Affiliation:
Department of Zoology, University of Aberdeen, Scotland, AB24 2TZ, UK
*
Corresponding author, e-mail: [email protected]
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Abstract

The effect of thermal stress upon pattern development in Loligo forbesi was investigated. Levels of pattern disruption and pattern asymmetry were measured by examining the chromatophores of hatchlings reared at three constant temperatures (8, 12 and 16°C). Results indicate a strong positive correlation between thermal stress and disruption of embryonic chromatophore pattern. Asymmetry in chromatophore pattern occurs non-directionally and can therefore be described as fluctuating asymmetry.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 83 , Issue 5 , October 2003 , pp. 1101 - 1105
Copyright
Copyright © Marine Biological Association of the United Kingdom 2003

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