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Successful external fertilization in turbulent environments

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dc.contributor.authorSerrão, Ester
dc.contributor.authorPearson, G. A.
dc.contributor.authorKautsky, L.
dc.contributor.authorBrawley, S. H.
dc.date.accessioned2014-05-27T14:58:44Z
dc.date.available2014-05-27T14:58:44Z
dc.date.issued1996
dc.date.updated2014-05-21T14:24:36Z
dc.description.abstractMathematical and experimental simulations predict that external fertilization is unsuccessful in habitats characterized by high water motion. A key assumption of such predictions is that gametes are released in hydrodynamic regimes that quickly dilute gametes. We used fucoid seaweeds to examine whether marine organisms in intertidal and subtidal habitats might achieve high levels of fertilization by restricting their release of gametes to calm intervals. Fucus vesiculosus L. (Baltic Sea) released high numbers of gametes only when maximal water velocities were below ca. 0.2 m/s immediately prior to natural periods of release, which occur in early evening in association with lunar cues. Natural fertilization success measured at two sites was always close to 100%. Laboratory experiments confirmed that (i) high water motion inhibits gamete release by F. vesiculosus and by the intertidal fucoids Fucus distichus L. (Maine) and Pelvetia fastigiata (J. Ag.) DeToni (California), and (ii) showed that photosynthesis is required for high gamete release. These data suggest that chemical changes in the boundary layer surrounding adults during photosynthesis and/or mechanosensitive channels may modulate gamete release in response to changing hydrodynamic conditions. Therefore, sensitivity to environmental factors can lead to successful external fertilization, even for species living in turbulent habitats.por
dc.identifier.citationSerrão, E.A.; Pearson, G.A.; Kautsky, L.; Brawley, S.H. Successful external fertilization in turbulent environments, Proceedings of the National Academy of Sciences of the United States of America, 93, 11, 5286-52, 1996.por
dc.identifier.doihttp://dx.doi.org/10.1073/pnas.93.11.5286
dc.identifier.otherAUT: ESE00527;
dc.identifier.urihttp://hdl.handle.net/10400.1/4102
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherNational Academy of Sciencespor
dc.subjectEcologypor
dc.titleSuccessful external fertilization in turbulent environmentspor
dc.typeconference object
dspace.entity.typePublication
oaire.citation.endPage5290por
oaire.citation.issue11por
oaire.citation.startPage5286por
oaire.citation.titleProceedings of the National Academy of Sciences of the United States of Americapor
oaire.citation.volume93por
person.familyNameSerrao
person.familyNamePearson
person.givenNameEster A.
person.givenNameGareth Anthony
person.identifierC-6686-2012
person.identifier113536
person.identifier.ciencia-id5B13-B26E-B1EC
person.identifier.ciencia-id3315-9919-1A52
person.identifier.orcid0000-0003-1316-658X
person.identifier.orcid0000-0002-0768-464X
person.identifier.ridJ-3911-2013
person.identifier.scopus-author-id7004093604
person.identifier.scopus-author-id55916875600
rcaap.rightsrestrictedAccesspor
rcaap.typeconferenceObjectpor
relation.isAuthorOfPublication45ccfe90-155c-4d6f-9e86-8f0fd064005f
relation.isAuthorOfPublication0a10c448-c7f5-4c3b-9488-3917c707e35e
relation.isAuthorOfPublication.latestForDiscovery0a10c448-c7f5-4c3b-9488-3917c707e35e

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