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The relative magnitude of the effects of biological and physical settlement cues for cypris larvae of the acorn barnacle, Semibalanus balanoides L.
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2009 (English)In: Biofouling (Print), ISSN 0892-7014, E-ISSN 1029-2454, Vol. 25, no 1, p. 35-44Article in journal (Refereed) Published
Abstract [en]

Barnacle cypris larvae respond to many cues when selecting a settlement site. The settlement of over a million larvae on tiles of different textures, orientations and densities of incumbent settlers was measured on the rocky intertidal at Great Cumbrae, Scotland. Half of the tiles were replaced every tide whereas the others simultaneously accumulated settlers. Factor effects varied on each tide, and converged in the accumulating deployment. Increasing incumbent density led to net loss of settlement, which was less probable on the textures on which fastest settlment occurred ('very fine'), and more probable on those on which settlement was slowest ('smooth'). More settlement occurred on down-facing orientations during daylight and vice versa. Cue ranks were non-linear, so a path analysis model quantified the relative influence of each factor. Gregariousness was the most influential cue measured, although unmeasured factors had greater effects, highlighting the complexity of settlement influences in this species.

Place, publisher, year, edition, pages
2009. Vol. 25, no 1, p. 35-44
Keywords [en]
barnacle, gregarious, density, texture, orientation, path analysis
National Category
Oceanography, Hydrology and Water Resources
Research subject
Oceanography
Identifiers
URN: urn:nbn:se:smhi:diva-1017DOI: 10.1080/08927010802444267ISI: 000261336000004PubMedID: 18846458OAI: oai:DiVA.org:smhi-1017DiVA, id: diva2:808966
Available from: 2015-04-30 Created: 2015-04-30 Last updated: 2018-01-11Bibliographically approved

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Hansson, Lars J.

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