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The influence of daylength, temperature and season on the hatching rhythm of Homarus gammarus

Published online by Cambridge University Press:  11 May 2009

J. R. Branford
J. R. Branford
Affiliation:
Department of Marine Biology, University of Liverpool, Port Erin, Isle of Man
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Extract

The release of larvae by female lobsters is confined to a few minutes at night, and is repeated at a similar time on each night over several weeks. The rhythm is shown to be partly controlled by an endogenous component in the female. Eggs in vitro have an exogenous, light-stimulated hatching rhythm, but are arhythmic in continuous light or darkness. In light/darkregimes the time of hatching is not influenced by daylength, but occurs sooner after sunset astemperature increases.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 58 , Issue 3 , August 1978 , pp. 639 - 658
Copyright
Copyright © Marine Biological Association of the United Kingdom 1978

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