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

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

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.

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. https://doi.org/10.1017/S0025315400002265

• Journal Article Type: Article
• Acceptance Date: Jun 30, 2000
• Publication Date: 2000-06
• Journal: JOURNAL OF THE MARINE BIOLOGICAL ASSOCIATION OF THE UNITED KINGDOM
• Print ISSN: 0025-3154
• Publisher: Cambridge University Press
• Peer Reviewed: Peer Reviewed
• Volume: 80
• Issue: 3
• Pages: 547-548
• DOI: https://doi.org/10.1017/S0025315400002265
• Keywords: saxatilis olivi
• Public URL: https://hull-repository.worktribe.com/output/409470