@Article{CesarRibeiroPiCuLiPiMo:2020:OlEqFa,
               author = "Cesar Ribeiro, Caio and Piedras, Fernanda R. and Cunha, 
                         Let{\'{\i}}cia Cotrim da and Lima, Dom{\^e}nica T. de and 
                         Pinho, Luana Q. and Moser, Gleyci A. O.",
          affiliation = "{Universidade do Estado do Rio de Janeiro (UERJ)} and 
                         {Universidade do Estado do Rio de Janeiro (UERJ)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Universidade do 
                         Estado do Rio de Janeiro (UERJ)} and {Universidade do Estado do 
                         Rio de Janeiro (UERJ)} and {Universidade do Estado do Rio de 
                         Janeiro (UERJ)}",
                title = "Is Oligotrophy an Equalizing Factor Driving Microplankton Species 
                         Functional Diversity Within Agulhas Rings?",
              journal = "Frontiers in Marine Science",
                 year = "2020",
               volume = "7",
                pages = "e599185",
                month = "Dec.",
             keywords = "microplankton, neutrality, mixotrophy, functional traits, Agulhas 
                         rings.",
             abstract = "From the southwestern termination of the Agulhas current, 
                         anticyclonic eddies are emitted and drift across the South 
                         Atlantic Ocean. This study is based on a FORSA (Following Ocean 
                         Rings in the South Atlantic) oceanographic cruise, from Cape Town 
                         (South AFRica) to Arraial do Cabo (Brazil) in June 2015, during 
                         which three eddies of different ages (E1, 7 months; E3, 11 months; 
                         E5, 24 months) from the Agulhas current were sampled for 
                         microplankton identification and determination of functional 
                         traits. The stations where sampling occurred at each eddy included 
                         a control outside the eddy and three stations inside the 
                         eddy-border, midway (between the border and center), and center 
                         (identified through satellite images of sea level anomaly - SLA). 
                         Functional traits were determined based on microscopic 
                         observations and consultation of the literature. An evident decay 
                         in the Agulhas eddies toward the west was observed, and each eddy 
                         proved to be different. E1 represented a younger and more robust 
                         structure. At the same time, the other eddies, E3 and E5, were 
                         more alike with similar physical, chemical, and ecological 
                         characteristics and almost the same indices values of functional 
                         diversity, demonstrating that although their species compositions 
                         were different, the strategies used by the species were the same. 
                         The most crucial ecological trait for microplankton was nutrition 
                         mode. The microplankton contained mainly mixotrophic 
                         dinoflagellates and cyanobacteria adapted to oligotrophic 
                         conditions. The functional strategy of microplankton did not 
                         differ among the eddies and stations, with mixotrophy being the 
                         most striking trait. Therefore, the older eddies' microplankton 
                         community fits the neutrality theory, whereby species perform 
                         similar ecological functions, and the younger eddy fits in the 
                         niche complementarity. Even with the species composition being 
                         different in each eddy and/or within the same eddy, the functional 
                         strategy was the same, with scarce resources and species selected 
                         that best use any source of nutrients or use evolutionary 
                         advantages to live in an oligotrophic environment.",
                  doi = "10.3389/fmars.2020.599185",
                  url = "http://dx.doi.org/10.3389/fmars.2020.599185",
                 issn = "2296-7745",
             language = "en",
           targetfile = "Ribeiro_is.pdf",
        urlaccessdate = "25 abr. 2024"
}