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Effects of nutrient and light enrichment on phytoplankton growth
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Orientador(es)
Resumo(s)
Alterations of freshwater flow regimes and
increasing eutrophication lead to alterations in
light availability and nutrient loading into adjacent
estuaries and coastal areas. Phytoplankton
community respond to these changes in many
ways. Harmful phytoplankton blooms, for
instance, may be a consequence of changes in
nutrient supply, as well as the replacement of
some phytoplankton species (like diatoms, that
contribute for the development of large fish and
shellfish populations) by ohers (like
cyanobacteria, that may be toxic and represent
an undesirable food source for higher trophic
levels). Nutrient and light enrichment
experiments allow us to understand and predict
the effects of eutrophication on the growth of
phytoplankton. This is a fundamental tool in
water management issues, since it enables the
prediction of changes in the phytoplankton
community that may be harmful to the whole
ecosystem, and the design of mitigation
strategies (Zalewski 2000).
Descrição
Palavras-chave
Phytoplankton growth Nutrients Light Bottom-up regulation
Contexto Educativo
Citação
Domingues, RB and AB Barbosa, 2009. Effects of nutrient and light enrichment on phytoplankton growth. In: Practical Experiments Guide for Ecohydrology, Eds.: L Chícharo, I Wagner, M Chícharo, M Lapinska and M Zalewski, UNESCO, 27-30 pp. ISBN: 978-989-20-1702-0.
Editora
L Chícharo, I Wagner, M Chícharo, M Lapinska and M Zalewski