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Article: Knowing when to stop: Rhythms of locomotor activity in the high-shore limpet, Cellana grata Gould

TitleKnowing when to stop: Rhythms of locomotor activity in the high-shore limpet, Cellana grata Gould
Authors
KeywordsBehaviour
Circatidal
Endogenous rhythms
Tropical rocky shore
Issue Date2010
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jembe
Citation
Journal Of Experimental Marine Biology And Ecology, 2010, v. 391 n. 1-2, p. 125-130 How to Cite?
AbstractThe high shore limpet, Cellana grata, forages whilst awash, moving upshore with the rising tide and retreating downshore on the ebbing tide to become inactive in refuges. Spraying inactive, emersed individuals with seawater at low tide invokes a locomotory response, with limpets moving up the shore. Controlled laboratory experiments under continuous white or red light (to simulate light or dark periods respectively) and continuous emersion, immersion or seawater spray showed that C. grata possesses a free-running endogenous rhythm of locomotor activity. This rhythm was maintained over 30. days in continuous seawater spray and white light. Maximum entropy spectral analysis (MESA) revealed two major components to this rhythm, at 7.2. h and 12.4. h. The 12.4. h component is of a circatidal nature and appears to initiate activity, allowing individuals to anticipate immersion by the incoming tide, although this clock can be over-ridden by strong wave splash or spraying vigorously with seawater. The 7.2. h period, however, was the most significant component and is suggested to act as a stopwatch enabling the limpet to assess the duration of each foraging excursion in order to prevent being stranded at the wrong height on the shore. The environmental stimulus for both components of the endogenous rhythm in C. grata appears to be the time of first exposure to wave wash from the incoming tide. C. grata, therefore, has behavioural rhythms entrained to initiate and also terminate activity, which play a role in the limpet maintaining a fixed vertical level on the shore when inactive. © 2010 Elsevier B.V.
Persistent Identifierhttp://hdl.handle.net/10722/127347
ISSN
2015 Impact Factor: 1.796
2015 SCImago Journal Rankings: 1.029
ISI Accession Number ID
Funding AgencyGrant Number
Laurence Caplin Scholarship in Marine Biology
CRCG (HKU)
Funding Information:

We are grateful to The Laurence Caplin Scholarship in Marine Biology, administered by the Committee of Management of The Swire Institute for Marine Science (HKU), which provided funds for accommodation and travel to DRG. Thanks to colleagues of the Hard Rock Ecology Group (HKU) who commented on the manuscript, Dr D. Dowse who provided the MESA package, Ms Kelly Lau for help with fieldwork and Ms Cecily Law who prepared the figures. Equipment was funded by a CRCG (HKU) grant to GAW. We are grateful for the helpful comments on the MS from Prof George M Branch.

References

 

DC FieldValueLanguage
dc.contributor.authorGray, DRen_HK
dc.contributor.authorWilliams, GAen_HK
dc.date.accessioned2010-10-31T13:20:15Z-
dc.date.available2010-10-31T13:20:15Z-
dc.date.issued2010en_HK
dc.identifier.citationJournal Of Experimental Marine Biology And Ecology, 2010, v. 391 n. 1-2, p. 125-130en_HK
dc.identifier.issn0022-0981en_HK
dc.identifier.urihttp://hdl.handle.net/10722/127347-
dc.description.abstractThe high shore limpet, Cellana grata, forages whilst awash, moving upshore with the rising tide and retreating downshore on the ebbing tide to become inactive in refuges. Spraying inactive, emersed individuals with seawater at low tide invokes a locomotory response, with limpets moving up the shore. Controlled laboratory experiments under continuous white or red light (to simulate light or dark periods respectively) and continuous emersion, immersion or seawater spray showed that C. grata possesses a free-running endogenous rhythm of locomotor activity. This rhythm was maintained over 30. days in continuous seawater spray and white light. Maximum entropy spectral analysis (MESA) revealed two major components to this rhythm, at 7.2. h and 12.4. h. The 12.4. h component is of a circatidal nature and appears to initiate activity, allowing individuals to anticipate immersion by the incoming tide, although this clock can be over-ridden by strong wave splash or spraying vigorously with seawater. The 7.2. h period, however, was the most significant component and is suggested to act as a stopwatch enabling the limpet to assess the duration of each foraging excursion in order to prevent being stranded at the wrong height on the shore. The environmental stimulus for both components of the endogenous rhythm in C. grata appears to be the time of first exposure to wave wash from the incoming tide. C. grata, therefore, has behavioural rhythms entrained to initiate and also terminate activity, which play a role in the limpet maintaining a fixed vertical level on the shore when inactive. © 2010 Elsevier B.V.en_HK
dc.languageengen_HK
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jembeen_HK
dc.relation.ispartofJournal of Experimental Marine Biology and Ecologyen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Journal of Experimental Marine Biology and Ecology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Experimental Marine Biology and Ecology, 2010, v. 391 n. 1-2, p. 125-130. DOI: 10.1016/j.jembe.2010.06.021-
dc.subjectBehaviouren_HK
dc.subjectCircatidalen_HK
dc.subjectEndogenous rhythmsen_HK
dc.subjectTropical rocky shoreen_HK
dc.titleKnowing when to stop: Rhythms of locomotor activity in the high-shore limpet, Cellana grata Goulden_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0022-0981&volume=391&issue=1-2&spage=125&epage=130&date=2010&atitle=Knowing+when+to+stop:+rhythms+of+locomotor+activity+in+the+high-shore+limpet,+Cellana+grata+Goulden_HK
dc.identifier.emailWilliams, GA: hrsbwga@hkucc.hku.hken_HK
dc.identifier.authorityWilliams, GA=rp00804en_HK
dc.description.naturepostprint-
dc.identifier.doi10.1016/j.jembe.2010.06.021en_HK
dc.identifier.scopuseid_2-s2.0-77955274334en_HK
dc.identifier.hkuros175970en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77955274334&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume391en_HK
dc.identifier.issue1-2en_HK
dc.identifier.spage125en_HK
dc.identifier.epage130en_HK
dc.identifier.isiWOS:000281173000016-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridGray, DR=7403493886en_HK
dc.identifier.scopusauthoridWilliams, GA=7406082821en_HK
dc.identifier.citeulike7603705-

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