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Bacterial and phytoplankton nutrient limitation in tropical marine waters, and a coastal lake in Brazil

Carlsson, Per LU ; Graneli, Edna; Granéli, Wilhelm LU ; Rodriguez, Eliane Gonzalez; de Carvalho, Wanderson Fernandes; Brutemark, Andreas and Lindehoff, Elin (2012) In Journal of Experimental Marine Biology and Ecology 418. p.37-45
Abstract
Bioassay experiments were performed two times (with 2 years in between) in order to investigate if nitrogen (N, ammonium), phosphorus (P, phosphate) and carbon (C, glucose) additions would stimulate the growth of bacteria and phytoplankton differently in three different tropical aquatic environments. The water and their indigenous microbial communities were taken from a freshwater coastal lake (Cabiunas), a coastal (Anjos), and an offshore marine station (Sonar) in the Atlantic outside Cabo Frio, Rio de Janeiro State, Brazil. Ammonium, phosphate and glucose were added alone or in combination to triplicate bottles. In the lake, P seemed to be the primary limiting factor during the first experiment, since both bacterial production and... (More)
Bioassay experiments were performed two times (with 2 years in between) in order to investigate if nitrogen (N, ammonium), phosphorus (P, phosphate) and carbon (C, glucose) additions would stimulate the growth of bacteria and phytoplankton differently in three different tropical aquatic environments. The water and their indigenous microbial communities were taken from a freshwater coastal lake (Cabiunas), a coastal (Anjos), and an offshore marine station (Sonar) in the Atlantic outside Cabo Frio, Rio de Janeiro State, Brazil. Ammonium, phosphate and glucose were added alone or in combination to triplicate bottles. In the lake, P seemed to be the primary limiting factor during the first experiment, since both bacterial production and phytoplankton growth was stimulated by the P addition. Two years later, however, addition of P inhibited phytoplankton growth. During both years, C was closely co-limiting for bacteria since CP additions increased the response considerably. For both the coastal and offshore seawater stations, phytoplankton growth was clearly stimulated by N addition in both years and the bacteria responded either to the P, N or C additions (alone or in combination). To conclude, the results from these tropical aquatic systems show that it is possible that phytoplankton and bacteria may compete for a common resource (P) in lakes, but can be limited by different inorganic nutrients in marine waters as well as lakes, suggesting that phytoplankton and bacteria do not necessarily compete for the same growth limiting nutrient in these environments. (C) 2012 Elsevier B.V. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Alkaline phosphatase, Bacterial biomass production, Nutrient limitation, Phytoplankton biomass production
in
Journal of Experimental Marine Biology and Ecology
volume
418
pages
37 - 45
publisher
Elsevier
external identifiers
  • wos:000304796700005
  • scopus:84859788109
ISSN
0022-0981
DOI
10.1016/j.jembe.2012.03.012
project
BECC
language
English
LU publication?
yes
id
dd0301d2-f5ee-4819-aa8b-1abb6a95990d (old id 2903233)
date added to LUP
2012-07-24 09:49:02
date last changed
2017-11-19 03:48:24
@article{dd0301d2-f5ee-4819-aa8b-1abb6a95990d,
  abstract     = {Bioassay experiments were performed two times (with 2 years in between) in order to investigate if nitrogen (N, ammonium), phosphorus (P, phosphate) and carbon (C, glucose) additions would stimulate the growth of bacteria and phytoplankton differently in three different tropical aquatic environments. The water and their indigenous microbial communities were taken from a freshwater coastal lake (Cabiunas), a coastal (Anjos), and an offshore marine station (Sonar) in the Atlantic outside Cabo Frio, Rio de Janeiro State, Brazil. Ammonium, phosphate and glucose were added alone or in combination to triplicate bottles. In the lake, P seemed to be the primary limiting factor during the first experiment, since both bacterial production and phytoplankton growth was stimulated by the P addition. Two years later, however, addition of P inhibited phytoplankton growth. During both years, C was closely co-limiting for bacteria since CP additions increased the response considerably. For both the coastal and offshore seawater stations, phytoplankton growth was clearly stimulated by N addition in both years and the bacteria responded either to the P, N or C additions (alone or in combination). To conclude, the results from these tropical aquatic systems show that it is possible that phytoplankton and bacteria may compete for a common resource (P) in lakes, but can be limited by different inorganic nutrients in marine waters as well as lakes, suggesting that phytoplankton and bacteria do not necessarily compete for the same growth limiting nutrient in these environments. (C) 2012 Elsevier B.V. All rights reserved.},
  author       = {Carlsson, Per and Graneli, Edna and Granéli, Wilhelm and Rodriguez, Eliane Gonzalez and de Carvalho, Wanderson Fernandes and Brutemark, Andreas and Lindehoff, Elin},
  issn         = {0022-0981},
  keyword      = {Alkaline phosphatase,Bacterial biomass production,Nutrient limitation,Phytoplankton biomass production},
  language     = {eng},
  pages        = {37--45},
  publisher    = {Elsevier},
  series       = {Journal of Experimental Marine Biology and Ecology},
  title        = {Bacterial and phytoplankton nutrient limitation in tropical marine waters, and a coastal lake in Brazil},
  url          = {http://dx.doi.org/10.1016/j.jembe.2012.03.012},
  volume       = {418},
  year         = {2012},
}