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Microplankton composition, production and upwelling dynamics in Sagres (SW Portugal) during the summer of 2001

2005-09Journal article Open Access
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dc.contributor.authorLoureiro, S.
dc.contributor.authorNewton, Alice
dc.contributor.authorIcely, J. D.
dc.date.accessioned2018-12-07T14:58:14Z
dc.date.available2018-12-07T14:58:14Z
dc.date.issued2005-09
dc.description.abstractMicroplankton community, production, and respiration were studied alongside physical and chemical conditions at Sagres (SW Portugal) during the upwelling season, from May to September 2001. The sampling station was 5 km east of the upwelling centre off Cabo S. Vicente, and 2 km west of an offshore installation for bivalve aquaculture. Three major periods were distinguished according to sea surface temperature (SST): period I (Pl; May and June), characterised by high temperature values (17.0 +/- 1.8 degrees C); period 2 (P2; July), characterised by lower temperatures (14.6 +/- 0.3 degrees C), identified as an upwelling-blooming stage; and period 3 (P3; August), characterised by a high temperature pattern (16.25 +/- 1.14 degrees C). Chaetoceros spp., Thalassiosira spp., Lauderia spp., Detonula spp. and Pseudo-nitzschia spp. were the major taxa contributing to the dissimilarities between P2 (July) and the other periods. In July (P2), the average gross production (GP; 52.5 +/- 12.3 mu M O-2 d(-1)) and net community production (NCP; 46.9 +/- 15.3 mu M O-2 d(-1)) peaked with the maximal concentrations of diatom-chl a. Dark community respiration (DCR) remained low and more constant throughout (4.6 +/- 3.6 mu M O-2 d(-1)). The plankton assemblage was dominated by diatoms throughout the survey. Physical events were the primary factors determining the microplankton structure and distribution at this location.
dc.description.sponsorshipPRAXIS-MAR 1969-95
dc.identifier.doi10.3989/scimar.2005.69n3323
dc.identifier.issn0214-8358
dc.identifier.urihttp://hdl.handle.net/10400.1/11928
dc.language.isoeng
dc.peerreviewedyes
dc.publisherConsejo Superior de Investigaciones Científicas (CSIC), Instituto de Ciéncies del Mar de Barcelona (CSIC)
dc.subjectNet community production
dc.subjectHarmful algal blooms
dc.subjectSecchi disk
dc.subjectPhytoplankton distribution
dc.subjectPlankton respiration
dc.subjectNarragansett bay
dc.subjectAtlantic Ocean
dc.subjectMonterey Bay
dc.subjectNw Spain
dc.subjectSystem
dc.titleMicroplankton composition, production and upwelling dynamics in Sagres (SW Portugal) during the summer of 2001
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/POCTI/PRAXIS XXI%2FBD%2F15840%2F98/PT
oaire.citation.endPage341
oaire.citation.issue3
oaire.citation.startPage323
oaire.citation.titleScientia Marina
oaire.citation.volume69
oaire.fundingStreamPOCTI
person.familyNameNewton
person.givenNameAlice
person.identifier333937
person.identifier.ciencia-id6F13-1247-B2B7
person.identifier.orcid0000-0001-9286-5914
person.identifier.scopus-author-id7201391894
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccess
rcaap.typearticle
relation.isAuthorOfPublication636c0a22-6cf2-4324-a704-64777269e97d
relation.isAuthorOfPublication.latestForDiscovery636c0a22-6cf2-4324-a704-64777269e97d
relation.isProjectOfPublicationf29af256-b87f-4d60-9c0a-6c5014d7b115
relation.isProjectOfPublication.latestForDiscoveryf29af256-b87f-4d60-9c0a-6c5014d7b115

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