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Measuring seagrass photosynthesis: methods and applications

2009Journal article Open access
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dc.contributor.authorSilva, João
dc.contributor.authorSharon, Yoni
dc.contributor.authorSantos, Rui
dc.contributor.authorBeer, Sven
dc.date.accessioned2018-12-07T14:58:34Z
dc.date.available2018-12-07T14:58:34Z
dc.date.issued2009
dc.description.abstractThis review originates from a keynote lecture given at the recent 8th Group for Aquatic Productivity (GAP) workshop held in Eilat, Israel. Here we examine the most important methodologies for photosynthetic measurements in seagrasses and evaluate their applications, advantages and disadvantages, and also point out the most relevant results. The most commonly used methodologies are based on oxygen (O(2)) evolution and chlorophyll fluorescence measurements. O(2)-based methodologies allowed for the first approaches to evaluate seagrass productivity, whereas chlorophyll a fluorescence has more recently become the choice method for in situ experiments, particularly in evaluating photosynthetic responses to light and assessing stress responses. New methodologies have also emerged, such as O(2) optodes, underwater CO(2) flux measurements, geo-acoustic inversion and the eddy correlation technique. However, these new methods still need calibration and validation. Our analysis of the literature also reveals several significant gaps in relevant topics concerning seagrass photosynthesis, namely the complete absence of studies on deep-growing populations that photosynthesise under extreme low light conditions and the uncertainties about the true degree of seagrass carbon limitation, which limits our ability to predict responses to global changes.
dc.identifier.doi10.3354/ab00173
dc.identifier.issn1864-7790
dc.identifier.urihttp://hdl.handle.net/10400.1/12095
dc.language.isoeng
dc.peerreviewedyes
dc.publisherInter-Research
dc.subjectZostera-noltiih Hornem
dc.subjectModulated pam fluorometry
dc.subjectMarine plant-communities
dc.subjectCarbon-dioxide evolution
dc.subjectChlorophyll-A fluorescence
dc.subjectEddy-correlation technique
dc.subjectMeadow-forming seagrasses
dc.subjectRadial oxygen loss
dc.titleMeasuring seagrass photosynthesis: methods and applications
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceEilat, Israel
oaire.citation.endPage141
oaire.citation.issue01-fev
oaire.citation.startPage127
oaire.citation.titleAquatic Biology
oaire.citation.title8Th International Workshop of the Group for Aquatic Primary Productivity/ Seminar on Gross and Net Primary Productivity
oaire.citation.volume7
person.familyNameSilva
person.familyNameSantos
person.givenNameJoão
person.givenNameRui
person.identifier82814
person.identifier42560
person.identifier.ciencia-id8216-527E-1BD4
person.identifier.ciencia-id9B18-444D-2244
person.identifier.orcid0000-0002-7211-1661
person.identifier.orcid0000-0002-7861-4366
person.identifier.ridJ-7874-2013
person.identifier.ridB-4168-2008
person.identifier.scopus-author-id7403023547
person.identifier.scopus-author-id7201375018
rcaap.rightsopenAccess
rcaap.typearticle
relation.isAuthorOfPublication61040b53-b17a-40f6-b42e-f5476a7a6ddb
relation.isAuthorOfPublication84487ca8-404a-4584-81f0-3662c340d712
relation.isAuthorOfPublication.latestForDiscovery84487ca8-404a-4584-81f0-3662c340d712

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