Repository logo
 
Publication

Periodicity of propagule expulsion and settlement in the competing native and invasive brown seaweeds, Cystoseira humilis and Sargassum muticum (Phaeophyta)

2008-06Journal article Restricted
Simple item page
dc.contributor.authorEngelen, Aschwin
dc.contributor.authorEspirito-Santo, C.
dc.contributor.authorSimões, T.
dc.contributor.authorMonteiro, C. A.
dc.contributor.authorSerrão, Ester
dc.contributor.authorPearson, G. A.
dc.contributor.authorSantos, Rui
dc.date.accessioned2014-06-06T08:55:13Z
dc.date.available2014-06-06T08:55:13Z
dc.date.issued2008-06
dc.date.updated2014-05-21T13:34:07Z
dc.description.abstractDense stands of the invasive species Sargassum muticum (Yendo) Fensholt develop in tidal pools close to its southern distributional limit in Europe, the southwest coast of Portugal. Along this coast, sheltered tidal pools form a specific habitat in which colonization occurs. Invaded pools are originally inhabited by Cystoseira humilis Kützing. Differences in gamete release between the competing native and alien species might be important for the initial settlement and further spread of the invader. Therefore, we tested whether egg expulsion and embryo settlement in both species had the same timing with respect to lunar and tidal cycles. For more than 2 months during the reproductive season egg expulsion and embryo release were monitored daily for each species. Egg expulsion in S. muticum showed a broadly semilunar periodicity peaking around full and new moon (spring tides), when low tides take place in the morning/evening. In contrast, C. humilis egg expulsion showed an asymmetric semilunar-to-lunar periodicity peaking around waning quarter moon, when low tides occur around midday. Embryo settlement detected in pools was low for both species and less periodic. Phase differences in expulsion events between the two species with respect to the semilunar cycle suggest that cues other than the moon are involved in their timing. Our observations suggest that variations in physiological mechanisms and/or environmental conditions result in different patterns of egg expulsion between the two species. This might have consequences for fertilization success, gamete dispersal and survival. It was further found that peaks in egg expulsion and embryo release (i.e. settlement) in S. muticum were much more synchronous at a site in northern Portugal compared with a site close to the current southern distributional limit in south-west Portugal, possibly as a consequence of thermal stress experienced in the south.por
dc.identifier.citationEngelen, A.H.; Espirito-Santo, C.; Simões, T.; Monteiro, C.A.; Serrão, E.A.; Pearson, G.A.; Santos, R.O.P.Periodicity of propagule expulsion and settlement in the competing native and invasive brown seaweeds, Cystoseira humilis and Sargassum muticum (Phaeophyta), European Journal of Phycology, 43, 3, 275-282, 2008.por
dc.identifier.doihttp://dx.doi.org/ 10.1080/09670260801979279
dc.identifier.issn0967-0262
dc.identifier.otherAUT: ESE00527; ROS00812;
dc.identifier.urihttp://hdl.handle.net/10400.1/4209
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherTaylor & Francispor
dc.relation.publisherversionhttp://www.tandfonline.com/doi/abs/10.1080/09670260801979279#.U5F9tnJdWE4por
dc.subjectCystoseira humilispor
dc.subjectPeriodicitypor
dc.subjectPropagule expulsionpor
dc.subjectPropagule settlementpor
dc.subjectReproductionpor
dc.subjectReproductive ecologypor
dc.subjectSargassum muticumpor
dc.titlePeriodicity of propagule expulsion and settlement in the competing native and invasive brown seaweeds, Cystoseira humilis and Sargassum muticum (Phaeophyta)por
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F7153%2F2001/PT
oaire.citation.endPage282por
oaire.citation.issue3por
oaire.citation.startPage275por
oaire.citation.titleEuropean Journal of Phycologypor
oaire.citation.volume43por
oaire.fundingStreamSFRH
person.familyNameEngelen
person.familyNameSerrao
person.familyNamePearson
person.familyNameSantos
person.givenNameAschwin
person.givenNameEster A.
person.givenNameGareth Anthony
person.givenNameRui
person.identifierC-6686-2012
person.identifier113536
person.identifier42560
person.identifier.ciencia-id911A-9A0C-744D
person.identifier.ciencia-id5B13-B26E-B1EC
person.identifier.ciencia-id3315-9919-1A52
person.identifier.ciencia-id9B18-444D-2244
person.identifier.orcid0000-0002-9579-9606
person.identifier.orcid0000-0003-1316-658X
person.identifier.orcid0000-0002-0768-464X
person.identifier.orcid0000-0002-7861-4366
person.identifier.ridM-3432-2013
person.identifier.ridJ-3911-2013
person.identifier.ridB-4168-2008
person.identifier.scopus-author-id6701622770
person.identifier.scopus-author-id7004093604
person.identifier.scopus-author-id55916875600
person.identifier.scopus-author-id7201375018
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication33d5a223-f2c9-4c68-984f-9213f15a05b0
relation.isAuthorOfPublication45ccfe90-155c-4d6f-9e86-8f0fd064005f
relation.isAuthorOfPublication0a10c448-c7f5-4c3b-9488-3917c707e35e
relation.isAuthorOfPublication84487ca8-404a-4584-81f0-3662c340d712
relation.isAuthorOfPublication.latestForDiscovery45ccfe90-155c-4d6f-9e86-8f0fd064005f
relation.isProjectOfPublication0c451b43-2bc5-4b87-b6bb-620f89ca4603
relation.isProjectOfPublication.latestForDiscovery0c451b43-2bc5-4b87-b6bb-620f89ca4603

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
Periodicity of propagule expulsion and settlement in the competing native and invasive brown seaweeds, Cystoseira humilis and Sargassum muticum (Phaeophyta).pdf
Size:
379.03 KB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.61 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

CCM2-Artigos (em revistas ou actas indexadas)