| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
Analysis of time series of planktonic communities in the Adriatic Sea: Distinguishing between natural and man-induced changes
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| Autores: |
Solic, M
Krstulovic, N
Marasovic, I
Baranovic, A
Pucherpetkovic, T
Vucetic, T
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| Data: |
1997
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| Ano: |
1997
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| Palavras-chave: |
Plankton
Time series
Natural factors
Man-induced factors
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| Resumo: |
Time series (> 20 years) of bacterioplankton, phytoplankton and zooplankton abundances and of phytoplankton production in the Adriatic Sea were analysed. Multivariate methods were used to extract the main patterns of year-to-year changes in abundances (Principal Component Analysis), and to discriminate between years and sites (Multidimensional Scaling). Increasing long-term trends were established for planktonic abundances and phytoplankton production in both coastal and open sea areas, presumably as a result of eutrophication processes. In the open sea, natural factors (water exchange between the Mediterranean and Adriatic Seas, and temperature) were dominant in controlling year-to-year fluctuations of plankton. On the other hand, long-term fluctuations of plankton in the coastal area were chiefly controlled by man-induced factors. Thus, besides natural factors, the dominant pattern of planktonic fluctuation was correlated with the fluctuation of nutrients coming from the land as a result of human activities.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
http://archimer.ifremer.fr/doc/00093/20386/18053.pdf
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| Editor: |
Gauthier-Villars
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| Relação: |
http://archimer.ifremer.fr/doc/00093/20386/
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| Formato: |
application/pdf
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| Fonte: |
Oceanolica Acta (0399-1784) (Gauthier-Villars), 1997 , Vol. 20 , N. 1 , P. 131-143
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