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Provedor de dados:  Iheringia, Sér. Zool.
País:  Brazil
Título:  Quantifying zooplankton species: use of richness estimators
Autores:  Castilho,Maria Carolina de A.
Wisniewski,Maria José dos S.
Wisniewski,Célio
Silva,Érika dos S.
Data:  2016-01-01
Ano:  2016
Palavras-chave:  Biodiversity
Cladocera
Rotifera
Sampling effort
Aquatic environments
Resumo:  ABSTRACT Richness estimators (Jackknife 1, Bootstrap, Chao 1 and ACE) were used to relate zooplankton species richness with amount of water collected per sample and number of samples throughout the year for the limnetic region of Sapucai River compartment of Furnas reservoir, state of Minas Gerais, Brazil. Seven 100 L samples were collected in sequence using a motor pump, and seven 70 L samples were collected in sequence using a plankton net (68 μm mesh size) in vertical hauls, to totalize 450 L, in three stations of the reservoir. Twelve monthly samplings were carried out over a year. The assessment of richness was made by analyzing the asymptotic behavior of the estimator curves. The samplings reached the asymptote from 350 L of collection with trawls and 400 L using a suction motor pump and reached the plateau on the 8th collection, which included both dry and rainy seasons. Regardless of the type of sampling, the volume of 400 L and eight sessions throughout the year is enough to register 90% of the zooplankton richness in the environment.
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Identificador:  http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212016000100211
Editor:  Museu de Ciências Naturais
Relação:  10.1590/1678-4766e2016011
Formato:  text/html
Fonte:  Iheringia. Série Zoologia v.106 2016
Direitos:  info:eu-repo/semantics/openAccess
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