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Article: Anti-predator behaviour in the green-lipped mussel Perna viridis: Byssus thread production depends on the mussel's position in clump

TitleAnti-predator behaviour in the green-lipped mussel Perna viridis: Byssus thread production depends on the mussel's position in clump
Authors
KeywordsAnti-Predator Behaviour
Byssusl
Clumping
Mussel
Perna Viridis
Issue Date2009
PublisherInter-Research. The Journal's web site is located at http://www.int-res.com/journals/meps/index.html
Citation
Marine Ecology Progress Series, 2009, v. 378, p. 145-151 How to Cite?
Abstract
Green-lipped mussels Perna viridis secrete a larger number of byssus threads to anchor themselves to the substrate more firmly when predation risks are high. These mussels also form clumps. As predators usually attack clumps from the periphery, the prédation risks of solitary mussels are higher than those of mussels living along the edge of clumps, which are in turn higher than those of mussels living within the clumps. The byssus thread number, length and diameter were investigated in relation to the mussels' position in the clump. We set up chemical stimulus treatments with damaged conspecifics and heterospecifics, suggesting predation risks, as well as with intact conspecifics and heterospecifics, shrimp cues and control (no cue). The mean number of byssus threads produced was significantly affected by both the mussels' position in the clump, the treatment type, and the interactive effect between these 2 variables. In the treatment in which mussels were exposed to damaged conspecific cues, the mean number of byssus threads produced by the solitary mussels was greater than the number produced by edge mussels, which was, in turn, greater than the number produced by the mussels within the clump. Furthermore, the solitary and edge mussels exposed to damaged conspecifics secreted more byssus threads than their counterparts in the control, intact conspecifics, intact and damaged heterospecifics, and shrimp meat treatments, However, the mussels within the clumps exposed to damaged conspecifics did not secrete more byssus threads than their control counterparts, Results of the present study suggest that the anti-predator responses to risk may be related to the presence of damaged conspecifics and the mussels' position in the clump, both indicative of local preacute;dation pressure. © Inter-Research 2009.
Persistent Identifierhttp://hdl.handle.net/10722/92695
ISSN
2013 Impact Factor: 2.640
ISI Accession Number ID
Funding AgencyGrant Number
Research Grants Council of the Hong Kong Special Administrative Region
CityU 1451/05M
Funding Information:

This manuscript benefited greatly from the comments and suggestions of 3 anonymous reviewers. The work described was fully supported by a grant from the Research Grants Council of the Hong Kong Special Administrative Region to S.G.C. and P.K.S.S (Project No. CityU 1451/05M), and partially fulfils the requirements of F.Y.Y.'s MPhil degree.

References

 

Author Affiliations
  1. City University of Hong Kong
DC FieldValueLanguage
dc.contributor.authorCheung, SGen_HK
dc.contributor.authorYang, FYen_HK
dc.contributor.authorChiu, JMYen_HK
dc.contributor.authorLiu, CCen_HK
dc.contributor.authorShin, PKSen_HK
dc.date.accessioned2010-09-17T10:54:26Z-
dc.date.available2010-09-17T10:54:26Z-
dc.date.issued2009en_HK
dc.identifier.citationMarine Ecology Progress Series, 2009, v. 378, p. 145-151en_HK
dc.identifier.issn0171-8630en_HK
dc.identifier.urihttp://hdl.handle.net/10722/92695-
dc.description.abstractGreen-lipped mussels Perna viridis secrete a larger number of byssus threads to anchor themselves to the substrate more firmly when predation risks are high. These mussels also form clumps. As predators usually attack clumps from the periphery, the prédation risks of solitary mussels are higher than those of mussels living along the edge of clumps, which are in turn higher than those of mussels living within the clumps. The byssus thread number, length and diameter were investigated in relation to the mussels' position in the clump. We set up chemical stimulus treatments with damaged conspecifics and heterospecifics, suggesting predation risks, as well as with intact conspecifics and heterospecifics, shrimp cues and control (no cue). The mean number of byssus threads produced was significantly affected by both the mussels' position in the clump, the treatment type, and the interactive effect between these 2 variables. In the treatment in which mussels were exposed to damaged conspecific cues, the mean number of byssus threads produced by the solitary mussels was greater than the number produced by edge mussels, which was, in turn, greater than the number produced by the mussels within the clump. Furthermore, the solitary and edge mussels exposed to damaged conspecifics secreted more byssus threads than their counterparts in the control, intact conspecifics, intact and damaged heterospecifics, and shrimp meat treatments, However, the mussels within the clumps exposed to damaged conspecifics did not secrete more byssus threads than their control counterparts, Results of the present study suggest that the anti-predator responses to risk may be related to the presence of damaged conspecifics and the mussels' position in the clump, both indicative of local preacute;dation pressure. © Inter-Research 2009.en_HK
dc.languageengen_HK
dc.publisherInter-Research. The Journal's web site is located at http://www.int-res.com/journals/meps/index.htmlen_HK
dc.relation.ispartofMarine Ecology Progress Seriesen_HK
dc.subjectAnti-Predator Behaviouren_HK
dc.subjectByssuslen_HK
dc.subjectClumpingen_HK
dc.subjectMusselen_HK
dc.subjectPerna Viridisen_HK
dc.titleAnti-predator behaviour in the green-lipped mussel Perna viridis: Byssus thread production depends on the mussel's position in clumpen_HK
dc.typeArticleen_HK
dc.identifier.emailChiu, MY:jillchiu@hku.hken_HK
dc.identifier.authorityChiu, MY=rp1325en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.3354/meps07874en_HK
dc.identifier.scopuseid_2-s2.0-63649125232en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-63649125232&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume378en_HK
dc.identifier.spage145en_HK
dc.identifier.epage151en_HK
dc.identifier.isiWOS:000264955300014-

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