On the seasonal occurrence of appendicularians in waters off the coast of São Paulo state

On the seasonal occurrence of appendicularians in waters off the coast of São Paulo state

T. M. Tundisi

Instituto Oceanográfico da Universidade de São Paulo

SYNOPSIS

Studies were made on the seasonal variation and qualitative composition of the Appendicularia population from a limited area of the South Atlantic 25º09.5'S to 24º04.0'S latitude and 47º48.4'W to 46º00.4'W longitude at the São Paulo State coast off Cananéia and off Santos.

The pattern of the seasonal variation was irregular for the most important species (O. longicauda). Some qualitative differences regarding the species composition are discussed.

RESUMO

Amostras coletadas quinzenalmente em três estações fixas ao largo de Cananéia durante os anos de 1958-1959-1960 e ao largo de Santos em 1960 foram analisadas para o estudo da variação sazonal e composição qualitativa de Apendicularias.

O. longicauda foi a espécie dominante da região, apresentando uma variação sazonal irregular a qual foi padrão para a variação do total da população de Apendicularias.

O. fusiformis e O. dioica apresentaram uma variação sazonal mais regular, a primeira sendo mais abundante nos meses onde a temperatura da água foi mais elevada e a segunda nos meses onde a temperatura foi mais baixa.

Full text available only in PDF format.

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ACKNOWLEDGEMENTS

Thanks are due to Dr. Liliana Forneris for suggestions in the preparation of this paper. The author also, wishes to express her thanks to all the persons who have helped in its preparation.

(Received in 10/8/1970)

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Publication Dates

• Publication in this collection
  12 June 2012
• Date of issue
  1970

History

• Received
  10 Aug 1970