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dc.contributor.author
Barbosa, Romina Vanessa
dc.contributor.author
Halac, Silvana Raquel
dc.contributor.author
Schwindt, Evangelina
dc.contributor.author
Tatian, Marcos
dc.date.available
2022-12-21T16:40:28Z
dc.date.issued
2021-12
dc.identifier.citation
Barbosa, Romina Vanessa; Halac, Silvana Raquel; Schwindt, Evangelina; Tatian, Marcos; Seasonality of phytoplankton community and dynamics of autotrophic carbon in a cold temperate port (Argentina); Taylor & Francis Ltd; European Journal Of Phycology; 57; 3; 12-2021; 343-356
dc.identifier.issn
0967-0262
dc.identifier.uri
http://hdl.handle.net/11336/182030
dc.description.abstract
The changes within and between seasons in phytoplankton composition and abundance determine the carbon biomass available for upper levels of the food web. Temporal changes in phytoplankton community and environmental parameters in a port in Puerto Madryn, Southwest Atlantic were analysed. During an annual period (2011–2012), samples of surface seawater were collected approximately monthly. We determined phytoplankton community structure (species composition and abundance) and biomass (determined by carbon content and chlorophyll a (Chl a)). Water temperature, salinity and transparency were measured when sampling the surface water and local meteorological data were considered. The main groups observed were diatoms (Bacillariophyta; the most abundant during the concentration peaks of Chl a), dinoflagellates (Dinophyta) and flagellates, which mainly included species of Cryptophyta and Chlorophyta. Diatoms exhibited blooms in March (summer–autumn) and September (spring), represented by Skeletonema costatum and Pseudo-nitzschia spp. respectively. Dinoflagellates contributed to the highest carbon biomass, with peaks in January (summer) and April (autumn), exemplified by Prorocentrum micans and Scrippsiella acuminata, respectively. Temporal differences in community composition were related to the seasonal changes in temperature, solar irradiance, precipitation, salinity and wind velocity. The environmental conditions seem not only to determine the species composition but also cell size distribution: nanoplanktonic (≤ 20 µm) species dominated mainly during late spring, summer and early winter while microplanktonic species (> 20 µm) during late winter and early spring. Our results showed within-season changes and show that not only Chl a, but also carbon content can be considered, as the former is a biased estimator of phytoplankton biomass. This study provides the first seasonally resolved estimation in the area of the carbon biomass available for upper levels of the food web and a necessary information for future scenarios prediction. HIGHLIGHTS• Two diatom blooms were followed by an increase in dinoflagellate abundance.• Annual environmental conditions drive the phytoplankton community structure.• First seasonally estimation of autotrophic biomass availability for Patagonian trophic web.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Taylor & Francis Ltd
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ANNUAL SUCCESSION
dc.subject
AUTOTROPHIC CARBON BIOMASS
dc.subject
FOOD WEB
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NUEVO GULF
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PHYTOPLANKTON BLOOM
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SKELETONEMA COSTATUM
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SOUTHWEST ATLANTIC
dc.subject.classification
Biología Marina, Limnología
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Seasonality of phytoplankton community and dynamics of autotrophic carbon in a cold temperate port (Argentina)
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-09-21T15:06:35Z
dc.identifier.eissn
1469-4433
dc.journal.volume
57
dc.journal.number
3
dc.journal.pagination
343-356
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
Fil: Barbosa, Romina Vanessa. Universite de Bretagne Occidentale; Francia. Universidad Nacional de Córdoba; Argentina
dc.description.fil
Fil: Halac, Silvana Raquel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
dc.description.fil
Fil: Schwindt, Evangelina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto de Biología de Organismos Marinos; Argentina
dc.description.fil
Fil: Tatian, Marcos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Diversidad y Ecología Animal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Diversidad y Ecología Animal; Argentina
dc.journal.title
European Journal Of Phycology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1080/09670262.2021.1995630
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/full/10.1080/09670262.2021.1995630
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