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The occurrence of abnormal embryos in two ovoviviparous barnacle-dwelling littorinids

Johnson, Lisa J.; Mill, Peter J.; Hull, Susan L.; Ducrotoy, Jean-Paul

Authors

Lisa J. Johnson

Peter J. Mill

Dr Sue Hull S.Hull@hull.ac.uk
Senior Lecturer in Marine Biology and Ecology/ Programme Director, Marine Biology

Jean-Paul Ducrotoy



Abstract

The occurrence of developmental abnormalities in two ovoviviparous littorinids (Littorina neglecta and a barnacle-dwelling form of L. saxatilis) inhabiting the barnacle zone at Peak Steel, Ravenscar on the north-east coast of England was investigated. In general developmental abnormalities appeared to be a rare occurrence in both taxa. However, L. neglecta was found to have a significantly greater proportion of deformed embryos in their brood pouches than L. saxatilis B (Figure 1). A distinct seasonal variation in the number of developmental abnormalities was observed in L. neglecta, and it is suggested this is a result of broods developing outside of the main reproductive season being more prone to deformity.

Journal Article Type Article
Publication Date 2000-06
Journal JOURNAL OF THE MARINE BIOLOGICAL ASSOCIATION OF THE UNITED KINGDOM
Print ISSN 0025-3154
Publisher Cambridge University Press (CUP)
Peer Reviewed Peer Reviewed
Volume 80
Issue 3
Pages 547-548
APA6 Citation Johnson, L. J., Mill, P. J., Hull, S. L., & Ducrotoy, J. (2000). The occurrence of abnormal embryos in two ovoviviparous barnacle-dwelling littorinids. Journal of the Marine Biological Association of the UK, 80(3), (547-548). doi:10.1017/S0025315400002265. ISSN 0025-3154
DOI https://doi.org/10.1017/S0025315400002265
Keywords saxatilis olivi
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