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      Checklist dos "protozoários" de água doce do Estado de São Paulo, Brasil Translated title: Checklist of "protozoans" from São Paulo State , Brazil

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          Abstract

          Listagens de espécies são importantes para o conhecimento da biota de um local, sua ecologia e para podermos dimensionar sua exploração econômica, biotecnológica e conservação. Neste trabalho foram levantados os dados de protozoários (ciliados, amebas nuas, amebas com carapaça, heliozoários e flagelados heterotróficos) de água doce do Estado de São Paulo. De 75 ambientes que foram analisados até o momento, foram registrados um total de 471 diferentes taxa de protozoários distribuídos em 218 generos e 304 espécies. Dos grupos de protozoários avaliados, os mais bem representados foram os ciliados com 160 gêneros e 219 espécies. Dentre os ciliados ocorrerem dois novos registros: Neobursaridium gigas Balech, 1941 para o Brasil e Loxodes rex Dragesco, 1970 para a América do Sul.

          Translated abstract

          Species checklists are important to know the local biodiversity, its ecology and scale its biotechnological and economic exploration and conservation. In this work the protozoan data (ciliates, naked amoebas, tecamoebas, heliozoans and heterotrophic flagellates) from São Paulo State have been listed. From 75 environments analized to this moment, 471 different protozoan taxa were recorded, distributed in 218 genera and 304 species. From the protozoan groups analyzed, the most representative was the ciliate with 160 genera and 219 species. Among the ciliates, two were new records: Neobursaridium gigas Balech, 1941 to Brazil and Loxodes rex Dragesco, 1970 to South America

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          Bacterivory and herbivory: Key roles of phagotrophic protists in pelagic food webs.

          Research on "microbial loop" organisms, heterotrophic bacteria and phagotrophic protists, has been stimulated in large measure by Pomeroy's seminal paper published in BioScience in 1974. We now know that a significant fate of bacterioplankton production is grazing by 20-µm ciliates and heterotrophic dinoflagellates in the microzooplankton. Protists can grow as fast as, or faster than their phytoplankton prey. Phototrophic cells grazed by protists range from bacterial-sized prochlorophytes to large diatom chains (which are preyed upon by extracellularly-feeding dinoflagellates). Recent estimates of microzooplankton herbivory in various parts of the sea suggest that protists routinely consume from 25 to 100% of daily phytoplankton production, even in diatom-dominated upwelling blooms. Phagotrophic protists should be viewed as a dominant biotic control of both bacteria and of phytoplankton in the sea.
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            Protist diversity: estimates of the near-imponderable.

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              Zooplankton composition, dominance and abundance as indicators of environmental compartmentalization in Jurumirim Reservoir (Paranapanema River), São Paulo, Brazil.

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Journal
                bn
                Biota Neotropica
                Biota Neotrop.
                Instituto Virtual da Biodiversidade | BIOTA - FAPESP (Campinas )
                1676-0611
                December 2011
                : 11
                : suppl 1
                : 389-426
                Affiliations
                [1 ] Universidade Federal de São Carlos Brazil
                Article
                S1676-06032011000500014
                10.1590/S1676-06032011000500014
                6876c54f-196f-44f6-823f-df129a1f3bbe

                http://creativecommons.org/licenses/by/4.0/

                History
                Product

                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=1676-0603&lng=en
                Categories
                BIODIVERSITY CONSERVATION

                Animal science & Zoology
                fresh-water protozoans,biodiversity of the State of São Paulo,BIOTA/FAPESP Program,protozoários de água doce,biota paulista,Programa BIOTA/FAPESP

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