Some observations on marine phytoplankton kinetics: 2. the effect of nitrate and ammonium concentrations on the growth and uptake rates of the natural population of Ubatuba region, SP (23ºS, 045ºW)

Authors

  • Gilda Schmidt Universidade de São Paulo; Instituto Oceanográfico

DOI:

https://doi.org/10.1590/S1679-87591983000100009

Keywords:

Phytopiankton, Kinetics, Nitrates, Ammonium, Growth, Chlorophylls, Nutrients (mineral), Limiting factors, Cell counting, Fluorescence, Phaeodactylum tricornutum, Ubatuba, SP

Abstract

The phytoplankton Ks anã Vmax as a function of ammonium and nitrate concentrations were determined. The growth rate was estimated from measurements on synthesized chlorophyll-α and the cell number in the. culture media. The uptake rate was determined as to the consumption of ammonium and nitrate after the nutrients depletion from culture media.

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Published

1983-01-01

Issue

Vol. 32 No. 1 (1983)

Section

Artigos

How to Cite

Some observations on marine phytoplankton kinetics: 2. the effect of nitrate and ammonium concentrations on the growth and uptake rates of the natural population of Ubatuba region, SP (23ºS, 045ºW) . (1983). Boletim Do Instituto Oceanografico, 32(1), 83-90. https://doi.org/10.1590/S1679-87591983000100009