Nano- and microplankton in the northern Patagonian shelf (SW South Atlantic) during austral spring and summer


The species composition and structure (e.g. abundance and biomass) of protistan plankton (cell size > 5 µm) and in situ chorophyll a were assessed in a shallow (<50 m depth) inner shelf area of the Argentine Shelf called El Rincón (38º-41°S). Surface water samples (5 m depth) for plankton quantification were taken with Niskin bottles during four oceanographic cruises (two in early austral spring and two in late austral summer- early fall), onboard the vessel B. Houssay accounting for a total of 36 sampling stations. These samples were analyzed under optical microscopy following the inverted microscope technique with sedimentation chambers. Cells enumeration and identification was made up to species, genus or family level, which were afterward categorized in taxonomical groups: diatoms, dinoflagellates, coccolithophores and nanoflagellates. Carbon content was calculated following the method of Menden-Deuer et al. (2000) in which biovolume was estimated assigning a geometrical shape to each species (Hillebrand et al., 1999). The biomass is the result of multiplying the carbon content of a species by its abundance in the sample. The studied area supports important fishes of commercial interest, therefore plankton biodiversity records are neccesary to understand possible shifts at the population and community levels that might have cascading effects on marine ecosystems' productivity.

Related Identifier
Related Identifier
Related Identifier
Related Identifier
Metadata Access
Creator Ferronato, Carola ORCID logo; Guinder, Valeria A ORCID logo; Chidichimo, Maria Paz ORCID logo; López-Abbate, Celeste ORCID logo; Amodeo, Martín
Publisher PANGAEA
Publication Year 2022
Funding Reference Agencia Nacional de Promoción Científica y Tecnológica Crossref Funder ID PICT-2013-1681 Factores moduladores de las floraciones de fitoplancton y del flujo de carbono en la base de la cadena trófica en el estuario de bahía Blanca; Agencia Nacional de Promoción Científica y Tecnológica Crossref Funder ID PICT-2016-0830 Respuestas ecofisiológicas del fitoplancton a múltiples estresores ambientales en la plataforma surbonaerense y sus efectos en la ocurrencia de blooms en el Mar Argentino; Agencia Nacional de Promoción Científica y Tecnológica Crossref Funder ID PICT-2017-2386 Vías de secuestro de carbono en la plataforma norpatagónica, Atlántico Sudoccidental; German Academic Exchange Service Crossref Funder ID DA/13/ 04 Detection of phytoplankton toxins and trophic transfer through the pelagic food web in the coastal ecosystem of Monte Hermoso, Argentina; National Scientific and Technical Research Council Crossref Funder ID PUE 2016 22920160100057CO Dinámica y sensibilidad de sistemas marinos productivos de la región sudbonaerense y norpatagónica
Rights Creative Commons Attribution 4.0 International;
OpenAccess true
Resource Type Dataset
Format text/tab-separated-values
Size 16722 data points
Discipline Earth System Research
Spatial Coverage (-62.387W, -41.497S, -60.529E, -39.079N); Argentine Continental Shelf; Patagonian shelf, Argentina
Temporal Coverage Begin 2013-03-11T00:00:00Z
Temporal Coverage End 2016-10-07T00:00:00Z