Nutrients and chlorophyll-a distribution over the continental margin between Cabo Frio (RJ) and Ubatuba (SP): winter of 2010

Authors

  • Robson Alves Takanohashi UERJ - Programa de Pós-Graduação em Oceanografia
  • Gleyci Aparecida Oliveira Moser UERJ - Programa de Pós-Graduação em Oceanografia
  • Alexandre Macedo Fernandes UERJ - Programa de Pós-Graduação em Oceanografia
  • Alex Enrich-Prast UFRJ - Laboratório de Biogeoquímica
  • Ricardo Cesar Gonçalves Pollery UFRJ - Laboratório de Biogeoquímica

DOI:

https://doi.org/10.14210/bjast.v19n3.4791

Abstract

Thirty nine oceanographic stations were conducted off Rio de Janeiro and northern São Paulo, encompassing Cabo Frio, Guanabara Bay, Sepetiba Bay and Ubatuba in the winter of 2010. Dissolved inorganic nutrients (ammonium, nitrite, nitrate, phosphate and silicate) and chlorophyll-a data were used to investigate biogeochemical and physical processes occurring on the continental shelf. Four major sources of nutrients were identified: local estuarine plumes; remote origins coastal waters; intrusion of South Atlantic Central Water over the continental shelf; and bottom sediments ressuspension and remineralization processes.

Author Biography

Robson Alves Takanohashi, UERJ - Programa de Pós-Graduação em Oceanografia

Graduação em oceanografia pela Universidade do Estado do Rio de Janeiro, atualmente realizando mestrado em oceanografia pela mesma instituição de ensino, com ênfase em oceanografia biológica.

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Published

2016-08-25

Issue

Vol. 19 No. 3 (2015): EDIÇÃO ESPECIAL - CONGRESSO BRASILEIRO DE OCEANOGRAFIA

Section

Research Articles

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