Seasonal change of phytoplankton (spring vs. summer) in the southern Patagonian shelf

As part of the Patagonian Experiment (PATEX) project two sequential seasons (spring/summer 2007–2008) were sampled in the southern Patagonian shelf, when physical-chemical-biological (phytoplankton) data were collected. Phytoplankton biomass and community composition were assessed through both micro...

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Bibliographic Details
Published in:Continental shelf research 2016-08, Vol.124, p.142-152
Main Authors: Gonçalves-Araujo, Rafael, de Souza, Márcio Silva, Mendes, Carlos Rafael Borges, Tavano, Virginia Maria, Garcia, Carlos A.E.
Format: Article
Language:English
Subjects:
Biomass
Chlorophylls
Coccolithus huxleyi
Communities
Corethron
Emiliania huxleyi
High performance liquid chromatography
Nutrient concentrations
Nutrients
Phaeocystis antarctica
Phytoplankton
Phytoplankton community
Seasonal variability
Southern Patagonian shelf
Spring (season)
Summer
Thalassiosira
Water column structure
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Summary:As part of the Patagonian Experiment (PATEX) project two sequential seasons (spring/summer 2007–2008) were sampled in the southern Patagonian shelf, when physical-chemical-biological (phytoplankton) data were collected. Phytoplankton biomass and community composition were assessed through both microscopic and high-performance liquid chromatography/chemical taxonomy (HPLC/CHEMTAX) techniques and related to both in situ and satellite data at spatial and seasonal scales. Phytoplankton seasonal variation was clearly modulated by water column thermohaline structure and nutrient dynamics [mainly dissolved inorganic nitrogen (DIN) and silicate]. The spring phytoplankton community showed elevated biomass and was dominated by diatoms [mainly Corethron pennatum and small (
ISSN:0278-4343
1873-6955
DOI:10.1016/j.csr.2016.03.023