Document of bibliographic reference 102230
BibliographicReference record
- Type
- Bibliographic resource
- Type of document
- Journal article
- BibLvlCode
- AS
- Title
- Picophytoplankton diversity and photoacclimation in the Strait of Sicily (Mediterranean Sea) in summer. I. Mesoscale variations
- Abstract
- Phytoplankton dynamics were investigated at the mesoscale in the northern part of the Strait of Sicily in July-August 1997 on fractionated samples (<3 and >3 μm) using HPLC pigment analysis and flow cytometry. Distribution, diversity and photoacclimation varied within the different water masses and features present at the time of sampling, including a surface filament of deep, cold water. Picophytoplankton (<3 μm) accounted for 80% of total chlorophyll on average, and was numerically dominated by cyanobacteria of the genus Prochlorococcus, with an average concentration of 5.2 × 104 cells ml-1. The biomass and pigment diversity of picophytoplankton was higher in the deep chlorophyll maximum (DCM) and was related to hydrological and biological features, whereas larger phytoplankton (>3 μm) appeared to respond to different cues. Chlorophyll pigment content per cell of Synechococcus spp., Prochlorococcus spp. or picoeukaryotes was estimated by coupling pigment data with flow cytometric counts. In Prochlorococcus spp., we found an average of 0.44 and 1.56 fg divinyl-chlorophyll a (dvchl a) cell-1 in surface and DCM layers, respectively. In contrast, chl a content in the picoeukaryote group ranged between 17 and 168 fg chl a cell-1, depending upon depth and water mass, which suggested strong photoacclimation and photoadaptation with depth. The relative contribution of each eukaryote pigment to one size class or the other changed through the water column, and reflected size segregation within single taxonomic groups.
- WebOfScience code
- https://www.webofscience.com/wos/woscc/full-record/WOS:000241076000003
- Bibliographic citation
- Brunet, C.; Casotti, R.; Vantrepotte, V.; Corato, F.; Conversano, F. (2006). Picophytoplankton diversity and photoacclimation in the Strait of Sicily (Mediterranean Sea) in summer. I. Mesoscale variations. Aquat. Microb. Ecol. 44(2): 127-141. http://dx.doi.org/10.3354/ame044127
- Topic
- Marine
- Is peer reviewed
- true
- Access rights
- open access
- Is accessible for free
- true
Authors
- author
-
- Name
- Christophe Brunet
- author
-
- author
-
- author
-
- Name
- Federico Corato
- author
-
- Name
- Fabio Conversano
Links
- referenced creativework
-
- type
- DOI
- accessURL
- http://dx.doi.org/10.3354/ame044127
thesaurus terms
- term
- Biodiversity (term code: 9471 - defined in term set: ASFA Thesaurus List)
- Chlorophylls (term code: 1537 - defined in term set: ASFA Thesaurus List)
- Flow cytometry (term code: 9512 - defined in term set: ASFA Thesaurus List)
- HPLC (term code: 9531 - defined in term set: ASFA Thesaurus List)
- Mesoscale features (term code: 5132 - defined in term set: ASFA Thesaurus List)
- Pigments (term code: 6214 - defined in term set: ASFA Thesaurus List)
Other terms
- other terms associated with this publication
- Picophytoplankton