1999
DOI: 10.1590/s1413-77391999000200007
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Comunidades microplanctônicas no Oceano Atlântico Sul Ocidental: biomassa e distribuição em novembro de 1992

Abstract: A distribuição quantitativa e a biomassa do microplâncton (1O-200J.lffi) foram investigadas ao longo de um transecto entre 8ão Paulo (25º30'8) e a Península Antártica (62º05'8) em novembro de 1992. Aumentos de biomassa fitoplanctônica ocorreram na Frente Polar (FP) e Zona de Confluência Brasil-Malvinas (ZCBM) (0,84-1,23J.1g Chl.a/l). A biomassa foi menor nas massas de água adjacentes, com valores médios semelhantes de clorofila-a para a Água 8ubtropical (0,27J.1g/1), onde ocorreu florescimento de Trichodesmium… Show more

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Cited by 21 publications
(12 citation statements)
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“…C. antarctica forma typica and A. norvegica forma typica within the SZ, and C. gaussi and C. convallaria within the AZ have shown persistence and high densities and biomasses in comparison to the other taxa found in both zones during the 2 years covered by this study. This information is also in agreement with that obtained previously (Alder 1995, Fernandes 1999, Alder & Thompson 2000, Thompson 2001. So, and according to the concept of Modigh & Castaldo (2002), the above-mentioned taxa may be considered key tintinnid species for their corresponding zones, and, thus, they can be used to track changes in environmental and hydrographical settings in the oceanic SZ and AZ.…”
Section: The Subantarctic Zone and Antarctic Zonesupporting
confidence: 91%
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“…C. antarctica forma typica and A. norvegica forma typica within the SZ, and C. gaussi and C. convallaria within the AZ have shown persistence and high densities and biomasses in comparison to the other taxa found in both zones during the 2 years covered by this study. This information is also in agreement with that obtained previously (Alder 1995, Fernandes 1999, Alder & Thompson 2000, Thompson 2001. So, and according to the concept of Modigh & Castaldo (2002), the above-mentioned taxa may be considered key tintinnid species for their corresponding zones, and, thus, they can be used to track changes in environmental and hydrographical settings in the oceanic SZ and AZ.…”
Section: The Subantarctic Zone and Antarctic Zonesupporting
confidence: 91%
“…Nonetheless, food preferences of the dominant species within the TZ and SZ could be inferred from a work by Fernandes & Brandini (1999) carried out during November 1992 on oceanic waters of the same area, and from data collected along Atlantic meridional transects during September and October in 1996 and 1997 to investigate the size-structure distribution of picoplankton and phytoplankton (Zubkov et al 2000, Marañón et al 2001.…”
Section: Predator-prey Relationshipsmentioning
confidence: 99%
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“…Portanto, uma série de trabalhos destinados à estudar a taxonomia, biogeografia e biomassa dos tintininos no Oceano Atlântico Sul-Ocidental está sendo realizada (FERNANDES 1999, 2004, FERNANDES & BRANDINI 1999, com base na análise de amostras coletadas em águas subtropicais, subantárticas e antárticas em diferentes cruzeiros oceanográfi-cos promovidos pela Marinha do Brasil e Instituto Oceanográfi-co da Universidade de São Paulo (IO/USP). É importante ressaltar que expedições deste tipo são extremamente dispendiosas e necessitando de logística volumosa, aumentando a relevância do material biológico coletado e da análise do mesmo.…”
Section: Abstract T T T T Tintinnids Intinnids Intinnids Intinnids Iunclassified
“…Most studies are non-published data (thesis and reports) and focus on check-lists and taxonomic aspects of some groups, especially those that have a loricae or skeleton such as tintinnids, foraminifers and radiolarians. Few published surveys include quantitative aspects and are restricted to tintinnids (Sassi & Melo, 1989;Cordeiro & Sassi, 1997;Fernandes & Brandini, 1999;Sassi et al, 1999;Fernandes, 2004a;2004b). Phytoplankton studies are better represented (34%), but they include a large number of species known to be mixotrophs and absolute heterotrophs, especially among dinoflagellates, as in most marine plankton studies from other parts of the world.…”
Section: Introductionmentioning
confidence: 99%