Sessile ciliates on artificial substrata submerged in a polluted estuary (Santos, SP, Brazil)

Autores

  • Verena Rapp de Eston Universidade de São Paulo; Instituto Oceanográfico

DOI:

https://doi.org/10.1590/S1679-87591985000100007

Palavras-chave:

Perifiton, Substratos artificiais, Estuários, Poluição, Ciliados sésseis, Ciliata, Costa sul-Brasil

Resumo

Primary growth was analysed on artificial substrata submerged at three sites of the Santos estuary (State of São Paulo, Brazil). Research on sessile ciliates was emphasized because they were the most conspicuous organisms of the primary growth developed along this estuary. Zoothamnium commune, dominated near the headwaters of the estuary, where the greatest amount of suspended matter in the water was found. Ephelota gemmipara dominated downstream. Although short time variability was observed in the colonization of substrata submerged on subsequent days, seasonal patterns could be determined. These patterns were characterized by a greater number of rare species of sessile ciliates, and a higher density of the most frequent ones, during spring and summer.

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Publicado

1985-01-01

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