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Embryonic respiration in the dogfish (Scyliorhinus canicula L.)

Published online by Cambridge University Press:  11 May 2009

Jose Manuel Diez
Affiliation:
Department of Biology, Faculty of Sciences, University of Valladolid, Spain
John Davenport
Affiliation:
Animal Biology Group, Marine Science Laboratories, Menai Bridge, Gwynedd LL59 5EH

Extract

Dogfish eggs would appear to be eminently suitable for physiological study because of their large size, easy availability (egg laying seems to be continuous throughout the year except for a break during the autumn (Craik, 1978)); their long lasting development (between 240 and 300 days from laying to hatching (Foulley & Mellinger, 1980a)); the clear separation between yolk-sac and embryo, and the fact that eggs are normally laid in pairs (opening up the possibility of keeping one of them as control whilst experimenting upon the other).

Type
Research Article
Copyright
Copyright © Marine Biological Association of the United Kingdom 1987

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