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Massive recruitment of the barnacle Semibalanus balanoides in the Clyde Sea (Scotland, UK) in the spring of 2000

Lookup NU author(s): Lars Johan Hansson, Dr Oliver Shaw, Dr Jeremy Thomason


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In April 2000 a massive recruitment of the barnacle Semibalanus balanoides was observed in the Clyde Sea. At one location 700 cyprids l-1 of this species were recorded. This is ∼3500 times more abundant than previously recorded, and resulted in metamorphosis of some cyprids whilst still in the plankton, as well as massive settlement, with recruits found on adults and in the splash zone. The maximum density recorded was 109 settlers cm -2. Over the next 60 d mortality averaged 85%, resulting in a mean density of 8.4 recruits cm-2 in June 2000. Recruitment varied spatially at the km and m scale (site, shore height) but there was no evidence that it was affected by the presence of adult conspecifics.

Publication metadata

Author(s): Hansson LJ, Hudson IR, Seddon RJ, Shaw O, Thomason JC

Publication type: Article

Publication status: Published

Journal: Journal of the Marine Biological Association of the United Kingdom

Year: 2003

Volume: 83

Issue: 5

Pages: 923-924

ISSN (print): 0025-3154

ISSN (electronic): 1469-7769

Publisher: Cambridge University Press


DOI: 10.1017/S0025315403008063h


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