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Effects of clam harvesting on sexual reproduction of the seagrass Zostera noltii

2005-08-15Journal article Open access
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dc.contributor.authorAlexandre, Ana
dc.contributor.authorSantos, Rui
dc.contributor.authorSerrão, Ester
dc.date.accessioned2014-06-04T13:25:32Z
dc.date.available2014-06-04T13:25:32Z
dc.date.issued2005-08-15
dc.date.updated2014-05-21T13:44:12Z
dc.description.abstractThe sexual reproduction of Zostera noltii in the Ria Formosa lagoon (southern Portugal) was assessed by quantifying the variation in both flowering effort and evolution of maturation stages during the fertile season. The effects of clam harvesting on the sexual reproduction of Z. noltii were investigated using both descriptive and experimental approaches. Meadows disturbed by clam harvesting were compared with undisturbed meadows in 2 sectors of the lagoon. In both sectors, disturbed meadows showed significantly lower vegetative shoot density and significantly higher reproductive effort. The reproductive effort in the western disturbed meadows was 2-fold higher than in undisturbed meadows, whereas in eastern disturbed meadows it was 4-fold higher. In disturbed meadows, early maturation stages were found until the end of the flowering season and higher seed production was observed. Both the negative effect of clam harvesting on Z. noltii density and the positive effect on its reproductive effort were confirmed by manipulative field experiments. Plots that were experimentally harvested during the fertile season showed significantly lower vegetative shoot density and higher reproductive effort than unharvested plots. Results suggest that Z. noltii responds to clam harvesting disturbance by both increasing its reproductive effort and extending its fertile season.por
dc.identifier.citationAlexandre, A.; Santos, R.; Serrão, E.A.Effects of clam harvesting on sexual reproduction of the seagrass Zostera noltii, Marine Ecology Progress Series, 298, Ago. 2005, 115-122, 2005.por
dc.identifier.doihttp://dx.doi.org/ 10.3354/meps298115
dc.identifier.issn0171-8630
dc.identifier.otherAUT: ESE00527;
dc.identifier.urihttp://hdl.handle.net/10400.1/4183
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherInter Researchpor
dc.relation.publisherversionhttp://www.int-res.com/abstracts/meps/v298/p115-122/por
dc.subjectZostera noltiipor
dc.subjectClam harvestingpor
dc.subjectSexual reproductionpor
dc.subjectMaturation scalepor
dc.subjectDisturbancepor
dc.subjectFloweringpor
dc.titleEffects of clam harvesting on sexual reproduction of the seagrass Zostera noltiipor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage122por
oaire.citation.startPage115por
oaire.citation.titleMarine Ecology Progress Seriespor
oaire.citation.volume289por
person.familyNameAlexandre
person.familyNameSantos
person.familyNameSerrao
person.givenNameAna
person.givenNameRui
person.givenNameEster A.
person.identifier42560
person.identifierC-6686-2012
person.identifier.ciencia-idA711-4AF6-8F36
person.identifier.ciencia-id9B18-444D-2244
person.identifier.ciencia-id5B13-B26E-B1EC
person.identifier.orcid0000-0001-7164-1487
person.identifier.orcid0000-0002-7861-4366
person.identifier.orcid0000-0003-1316-658X
person.identifier.ridB-4168-2008
person.identifier.scopus-author-id35836826900
person.identifier.scopus-author-id7201375018
person.identifier.scopus-author-id7004093604
rcaap.rightsopenAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublicationc907d7fb-323d-4227-84b7-f46c150d05f4
relation.isAuthorOfPublication84487ca8-404a-4584-81f0-3662c340d712
relation.isAuthorOfPublication45ccfe90-155c-4d6f-9e86-8f0fd064005f
relation.isAuthorOfPublication.latestForDiscovery45ccfe90-155c-4d6f-9e86-8f0fd064005f

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