| Registro completo |
| Provedor de dados: |
BABT
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| País: |
Brazil
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| Título: |
The influence of hydrodynamics on the spatial and temporal variation of phytoplankton pigments in a large, sub-tropical coastal lake (Brazil)
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| Autores: |
Cardoso,Luciana de Souza
Marques,David da Motta
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| Data: |
2004-08-01
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| Ano: |
2004
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| Palavras-chave: |
Pigment
Phytoplankton
Shallow lake
Hydrodynamics
Wind
Bloom
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| Resumo: |
This study evaluated the spatial and temporal distribution of phytoplankton pigments in Itapeva Lake and its relationship with hydrodynamic aspects. Regarding spatial distribution, a decreasing N®S gradient was generally observed for the pigments, except in summer. This inversion observed during the summer was influenced by the predominant fetch (N-E). The horizontal heterogeneity was proved (ANOVA) for all seasons of the year, except spring. Spatially in spring, the vertical variance was much more significant (p<0.05) than the horizontal one. The sampling shifts presented a permanent degree of variability among the seasons of the year, showing the existence of a diurnal cycle in the concentration of chlorophyll a. This behavior was related to the fetch, mainly from the NE and SW quadrants, disturbing the system because it is a shallow lake. This confirmed the influence of the Itapeva Lake's hydrodynamic regime on the spatial-temporal distribution of the phytoplankton pigments.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000400013
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| Editor: |
Instituto de Tecnologia do Paraná - Tecpar
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| Relação: |
10.1590/S1516-89132004000400013
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| Formato: |
text/html
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| Fonte: |
Brazilian Archives of Biology and Technology v.47 n.4 2004
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| Direitos: |
info:eu-repo/semantics/openAccess
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