Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | A numerical index for evaluating phytoplankton response to changes in nutrient levels in deep mediterranean reservoirs |
| Abstract | This paper proposes a new ecological index based on phytoplankton (MedPTI) as suggested by the European Directive 2000/60/CE, Water Framework Directive (WFD). The index is a useful tool to verify the impacts of eutrophication in Mediterranean reservoirs belonging to different categories of the WFD. Multiple data sets were employed to develop the MedPTI index. The calibration data set included data collected from 30 Sardinian reservoirs in 1994. A list of 44 selected taxa was obtained and used for index calculation. A second dataset including 48 averaged annual values from 10 reservoirs was used. Results showed good correlation between MedPTI and concentration of total phosphorus, which was the limiting nutrient in these reservoirs. The trophic classifications determined using the index agreed with the results from the OECD probabilistic model on the same series of data. Finally, the index was included in an international exercise to compare the definition of reference conditions and quality class boundaries against indices used in other Mediterranean countries. |
| Source | Journal of limnology (Testo stamp.) 68, pp. 106–121 |
| Keywords | eutrophicationWater Framework DirectiveMediterranean ecoregion |
| Journal | Journal of limnology (Testo stamp.) |
| Editor | Istituto per lo Studio degli Ecosistemi., Verbania Pallanza, Italia |
| Year | 2009 |
| Type | Articolo in rivista |
| Authors | Marchetto A., Padedda B.M.(1), Mariani M.A.(1), Lugliè A.(1), Sechi N.(1) |
| Text | 53048 2009 ISI Web of Science WOS 000266257300011 eutrophication Water Framework Directive Mediterranean ecoregion A numerical index for evaluating phytoplankton response to changes in nutrient levels in deep mediterranean reservoirs Marchetto A., Padedda B.M. 1 , Mariani M.A. 1 , Luglie A. 1 , Sechi N. 1 1 Dipartimento di Botanica ed Ecologia Vegetale, Universita degli Studi di Sassari This paper proposes a new ecological index based on phytoplankton MedPTI as suggested by the European Directive 2000/60/CE, Water Framework Directive WFD . The index is a useful tool to verify the impacts of eutrophication in Mediterranean reservoirs belonging to different categories of the WFD. Multiple data sets were employed to develop the MedPTI index. The calibration data set included data collected from 30 Sardinian reservoirs in 1994. A list of 44 selected taxa was obtained and used for index calculation. A second dataset including 48 averaged annual values from 10 reservoirs was used. Results showed good correlation between MedPTI and concentration of total phosphorus, which was the limiting nutrient in these reservoirs. The trophic classifications determined using the index agreed with the results from the OECD probabilistic model on the same series of data. Finally, the index was included in an international exercise to compare the definition of reference conditions and quality class boundaries against indices used in other Mediterranean countries. 68 articolo pubblicato 11_Jol_2009.pdf Articolo in rivista Istituto per lo Studio degli Ecosistemi. 1129 5767 Journal of limnology Testo stamp. Journal of limnology Testo stamp. J. limnol. Testo stamp. Journal of limnology. Testo stamp. aldo.marchetto MARCHETTO ALDO TA.P04.016.004 Ecologia teorica e applicata degli ecosistemi acquatici |