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Changes in microplanktonic protists assemblages promoted by the thermocline induced stratification around an oceanic archipelago Anais da ABC (AABC)
COSTA,ALEJANDRO E.S.F. DA; SANTANA,JANA R. DE; NEUMANN-LEITÃO,SIGRID.
Abstract In the area around the archipelago of São Pedro e São Paulo (ASPSP), a set of small rocky islands in the Equatorial Atlantic, the thermocline begins at a more superficial depth than in the surrounding waters. This raises the question if there is any change in heterotrophic microplanktonic protists assemblages occurring in the surface mixed layer and in the subsurface layer. To answer this question, we sampled seawater in seven depths (between 1-100 m) with a 10L Niskin bottle and obtained temperature and salinity profiles with a CTD at eight sites around the ASPSP. The depth of the surface mixed layer varied between 18-63 meters. Dinoflagellates dominated in terms of abundance representing over 80% and 65% of the individuals found in the surface...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Dinoflagellates; Ecological indicators; Polycystine radiolarians; Tintinnid ciliates; Tropical oceans; Vertical distribution.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000502249
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