%0 Journal Article
%T Copepods (Crustacea, Maxillopoda) from shallow reservoirs Cop¨¦podes (Crustacea, Maxillopoda) em reservat¨®rios rasos
%A Maria Stela Maioli Castilho-Noll
%A Carolina Figueira Camara
%A Maira Favaron Chicone
%A ¨¦rico Hissashi Shibata
%J Acta Limnologica Brasiliensia
%D 2012
%I 
%X AIM: Among the planktonic microcrustaceans, copepods Cyclopoida and Calanoida are the most representative groups, being the largest biomass of the plankton community. The aim of this work is to catalogue and analyze the distribution of copepod species (Crustacea, Maxillopoda) in pelagic and littoral zones from small reservoirs in the northwest of the S o Paulo State, in dry and rainy seasons (2007 and 2009). METHODS: Zooplankton samplings were carried out in littoral and pelagic zones of 13 small shallow reservoirs (mean depth: 2.6 m) using vertical hauls and plankton net (45 ¦Ìm). Water physical and chemical parameters were also monitored with a multiparameter Horiba  U10. RESULTS: Eighteen species of copepods were identified, 13 Cyclopoida and 5 Calanoida. There was no statistical difference between the distributions of species from the littoral and pelagic zones and neither between dry and rainy seasons. Three species occurred exclusively in the littoral zone - Eucyclops elegans, Paracyclops chiltoni and Mesocyclops ogunnus. Tropocyclops prasinus and Thermocyclops decipiens were the most frequent species in the studied environments. CONCLUSION: Our data suggest that in shallow reservoirs copepods present a homogeneous distribution between the littoral and pelagic zones and Cyclopoida are more diverse than Calanoida. Shallow depths and eutrophic state may be regarded as limiting conditions for the development of Calanoida in these reservoirs. OBJETIVO: Dentre os microcrust¨¢ceos planct nicos, os cop¨¦podes Cyclopoida e Calanoida s o um dos grupos mais representativos, contribuindo com a maior biomassa para a comunidade planct nica. O presente trabalho tem o objetivo de caracterizar as comunidades de cop¨¦podes (Crustacea, Maxillopoda) pel¨¢gicos e litoraneos presentes em pequenos reservat¨®rios na regi o noroeste do Estado de S o Paulo, nas esta  es seca e chuvosa de 2007 a 2009. MATERIAL E M¨¦TODOS: As amostragens foram realizadas tanto na zona litoranea quanto pel¨¢gica de 13 pequenos reservat¨®rios rasos (m¨¦dia de 2,6 m), atrav¨¦s de arrastos verticais com rede de plancton (45 ¦Ìm). Parametros f¨ªsicos e qu¨ªmicos da ¨¢gua tamb¨¦m foram avaliados utilizando-se o aparelho Horiba  U10. RESULTADOS: Foram identificadas 18 esp¨¦cies de cop¨¦podes, sendo 13 Cyclopoida e 5 Calanoida. N o houve diferen a estat¨ªstica entre as distribui  es das esp¨¦cies nas zonas litoraneas e pel¨¢gicas bem como entre as esta  es. Tr¨ºs esp¨¦cies ocorreram exclusivamente na zona litoranea - Eucyclops elegans, Paracyclops chiltoni e Mesocyclops ogunnus. As esp¨¦cies Tropocyclops prasinus e Thermo
%K cop¨¦podes
%K cyclopoida
%K calanoida
%K zona litoranea
%K lagos rasos
%K copepods
%K cyclopoida
%K calanoida
%K littoral zone
%K shallow lakes
%U http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2179-975X2012000200004