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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
Affiliation:
Department of Marine Biology, University of Liverpool, Port Erin, Isle of Man

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
Copyright
Copyright © Marine Biological Association of the United Kingdom 1978

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