Data/hora: 01/06/2024 04:29:47

Provedor de dados: | 5
País: | France
Título: | Analysis of time series of planktonic communities in the Adriatic Sea: Distinguishing between natural and man-induced changes
Autores: | Solic, M; Krstulovic, N; Marasovic, I; Baranovic, A; Pucherpetkovic, T; Vucetic, T.
Data: | 1997
Ano: | 1997
Palavras-chave: | Plankton; Time series; Natural factors; Man-induced factors.
Resumo: | Time series (&gt; 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.
Tipo: | Text
Idioma: | Inglês
Identificador: | http://archimer.ifremer.fr/doc/00093/20386/18053.pdf
Editor: | Gauthier-Villars
Relação: | http://archimer.ifremer.fr/doc/00093/20386/
Formato: | application/pdf
Fonte: | Oceanolica Acta (0399-1784) (Gauthier-Villars), 1997 , Vol. 20 , N. 1 , P. 131-143