Microplankton composition, production and upwelling dynamics in Sagres (SW Portugal) during summer of 2001
Microplankton 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 i...
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| Format: | Article |
| Language: | English |
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Consejo Superior de Investigaciones Científicas
2005-09-01
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| Series: | Scientia Marina |
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| Online Access: | http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/261 |
| _version_ | 1819297125783044096 |
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| author | Sofia Loureiro Alice Newton John D. Icely |
| author_facet | Sofia Loureiro Alice Newton John D. Icely |
| author_sort | Sofia Loureiro |
| collection | DOAJ |
| description | Microplankton 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 1 (P1; May and June), characterised by high temperature values (17.0±1.8°C); period 2 (P2; July), characterised by lower temperatures (14.6±0.3°C), identified as an upwelling-blooming stage; and period 3 (P3; August), characterised by a high temperature pattern (16.25±1.14°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 µM O2 d-1) and net community production (NCP; 46.9±15.3 µM O2 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 µM O2 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. |
| first_indexed | 2024-12-24T05:09:02Z |
| format | Article |
| id | doaj.art-1a63bf6a59894e77b3e0348fe14e3d15 |
| institution | Directory Open Access Journal |
| issn | 0214-8358 1886-8134 |
| language | English |
| last_indexed | 2024-12-24T05:09:02Z |
| publishDate | 2005-09-01 |
| publisher | Consejo Superior de Investigaciones Científicas |
| record_format | Article |
| series | Scientia Marina |
| spelling | doaj.art-1a63bf6a59894e77b3e0348fe14e3d152022-12-21T17:13:44ZengConsejo Superior de Investigaciones CientíficasScientia Marina0214-83581886-81342005-09-0169332334110.3989/scimar.2005.69n3323258Microplankton composition, production and upwelling dynamics in Sagres (SW Portugal) during summer of 2001Sofia Loureiro0Alice Newton1John D. Icely2CMQA-FCT, Gambelas Campus, Univ. AlgarveIMAR-FCT, Gambelas Campus, Univ. AlgarveSagremarisco Lda.Microplankton 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 1 (P1; May and June), characterised by high temperature values (17.0±1.8°C); period 2 (P2; July), characterised by lower temperatures (14.6±0.3°C), identified as an upwelling-blooming stage; and period 3 (P3; August), characterised by a high temperature pattern (16.25±1.14°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 µM O2 d-1) and net community production (NCP; 46.9±15.3 µM O2 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 µM O2 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.http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/261productionrespirationmicroplankton communityiberian peninsulacabo s. vicente |
| spellingShingle | Sofia Loureiro Alice Newton John D. Icely Microplankton composition, production and upwelling dynamics in Sagres (SW Portugal) during summer of 2001 Scientia Marina production respiration microplankton community iberian peninsula cabo s. vicente |
| title | Microplankton composition, production and upwelling dynamics in Sagres (SW Portugal) during summer of 2001 |
| title_full | Microplankton composition, production and upwelling dynamics in Sagres (SW Portugal) during summer of 2001 |
| title_fullStr | Microplankton composition, production and upwelling dynamics in Sagres (SW Portugal) during summer of 2001 |
| title_full_unstemmed | Microplankton composition, production and upwelling dynamics in Sagres (SW Portugal) during summer of 2001 |
| title_short | Microplankton composition, production and upwelling dynamics in Sagres (SW Portugal) during summer of 2001 |
| title_sort | microplankton composition production and upwelling dynamics in sagres sw portugal during summer of 2001 |
| topic | production respiration microplankton community iberian peninsula cabo s. vicente |
| url | http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/261 |
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