Temporal patterns of picoplankton abundance and metabolism on the western coast of the equatorial Atlantic Ocean.
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F23%3A00618142" target="_blank" >RIV/60077344:_____/23:00618142 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1590/2675-2824071.22048mm" target="_blank" >https://doi.org/10.1590/2675-2824071.22048mm</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1590/2675-2824071.22048mm" target="_blank" >10.1590/2675-2824071.22048mm</a>
Alternative languages
Result language
angličtina
Original language name
Temporal patterns of picoplankton abundance and metabolism on the western coast of the equatorial Atlantic Ocean.
Original language description
Picoplankton are central global carbon (C) cycling players and often dominate the ocean plankton communities, especially in low latitudes. Therefore, evaluating picoplankton temporal dynamics is critical to understanding microbial stocks and C fluxes in tropical oceans. However, the lack of studies on low-latitude picoplankton communities translates into a common conception that there is an absence of seasonality. Herein, we studied the temporal variation in abundance (measured by flow cytometry), and carbon flux (taking bacterial production and respiration as proxies) of the picoplanktonic community for the first time, as well as their environmental drivers in a low-latitude (05 DEG 59' 20.7' 'S 035 DEG 05' 14.6' 'W) Atlantic coastal station. We performed monthly samplings between February 2013 and August 2016 in a novel microbial observatory hereafter called the Equatorial Atlantic Microbial Observatory established on the northeastern Brazilian Atlantic coast. Our results revealed stability in temporal dynamics of picoplankton, despite a considerable inter-annual variation, with some related to the El Nino (ENSO) event in 2015. However, weak environmental relationships found were not enough to explain the variation in picoplankton's abundance, which suggests that other factors such as biological interactions may lead to picoplankton abundance variation over time. Heterotrophic bacteria dominated picoplankton during the entire study period and between photosynthetic counterparts, and Synechococcus showed greater relative importance than picoeukaryotes. These results bring a novel perspective that picoplankton may exhibit more pronounced fluctuations in the tropical region when considering inter-annual intervals, and is increasing prokaryotic contribution to carbon cycling towards the equator.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10606 - Microbiology
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Ocean and Coastal Research
ISSN
2675-2824
e-ISSN
2675-2824
Volume of the periodical
7
Issue of the periodical within the volume
Jan
Country of publishing house
BR - BRAZIL
Number of pages
20
Pages from-to
e23019
UT code for WoS article
001013179900001
EID of the result in the Scopus database
2-s2.0-85163214753