Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Mercury distribution in the main compartments of the eutrophic Lake Candia (Northern Italy) |
| Abstract | Total mercury (T-Hg) and organic mercury (mainly methylmercury, MeHg) concentrations in the most important compartments (water, sediment, macrophytes, zooplankton, mussels and fish) of the shallow and eutrophic Lake Candia (Turin, Northern Italy) were measured. The decreasing sequence of the T-Hg concentrations is as follows: cat-fish (143 ¼g kg-1 d.w.), zooplankton (77 ¼g kg-1 d.w.), Unio pictorum mancus (37.9 ¼g kg-1 d.w.), macrophytes (28.9 ¼g kg-1 d.w.). The content of mercury in mussel tissues increased with the size of the animal, but the relationship between Hg concentration and tissue weight was negative, indicating that the rate of mercury accumulation was lower than the tissue growth rate. The amount of mercury accumulated in the mussels living in the lake sediments was estimated to be 0.54 ¼g m-2. The importance of mercury biomagnification is also discussed. |
| Source | Journal of limnology (Testo stamp.) 68 (2), pp. 352–358 |
| Keywords | fishmolluscmacrophyteszooplanktonmercury |
| Journal | Journal of limnology (Testo stamp.) |
| Editor | Istituto per lo Studio degli Ecosistemi., Verbania Pallanza, Italia |
| Year | 2009 |
| Type | Articolo in rivista |
| DOI | 10.3274/JL09-68-2-17 |
| Authors | Fontanella M.C.; Ravera O.; Beone G.M.(1); Riccardi N.; Cattani I.(1) |
| Text | 53079 2009 10.3274/JL09 68 2 17 fish mollusc macrophytes zooplankton mercury Mercury distribution in the main compartments of the eutrophic Lake Candia Northern Italy Fontanella M.C.; Ravera O.; Beone G.M. 1 ; Riccardi N.; Cattani I. 1 CNR Institute of Ecosystem Study, Largo Tonolli 50, I 28922 Verbania Pallanza, Italy 1 Universita Cattolica del Sacro Cuore, Istituto di Chimica Agraria e Ambientale, Via E. Parmense 84, 29100 Piacenza, Italy Total mercury T Hg and organic mercury mainly methylmercury, MeHg concentrations in the most important compartments water, sediment, macrophytes, zooplankton, mussels and fish of the shallow and eutrophic Lake Candia Turin, Northern Italy were measured. The decreasing sequence of the T Hg concentrations is as follows cat fish 143 ¼g kg 1 d.w. , zooplankton 77 ¼g kg 1 d.w. , Unio pictorum mancus 37.9 ¼g kg 1 d.w. , macrophytes 28.9 ¼g kg 1 d.w. . The content of mercury in mussel tissues increased with the size of the animal, but the relationship between Hg concentration and tissue weight was negative, indicating that the rate of mercury accumulation was lower than the tissue growth rate. The amount of mercury accumulated in the mussels living in the lake sediments was estimated to be 0.54 ¼g m 2. The importance of mercury biomagnification is also discussed. 68 Published version Articolo pubblicato 17_fontanella.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. nicolettarita.riccardi RICCARDI NICOLETTA RAVERA OSCAR TA.P04.016.004 Ecologia teorica e applicata degli ecosistemi acquatici |