Zobrazeno 1 - 10
of 49
pro vyhledávání: '"Oscar RAVERA"'
Publikováno v:
Journal of Limnology, Vol 70, Iss 2, Pp 283-292 (2011)
The study focused on using a fresh-water mussel (Unio pictorum mancus) as a bioindicator of various pollutants, and particularly metals. The elements considered were: Al, As, Ca, Cd, Co, Cr, Cu, Fe, Mn, Mo, Ni, Pb, V and Zn. This research was carried
Externí odkaz:
https://doaj.org/article/3e90e30ff68e4b3195fc0c0e18348aa9
Publikováno v:
Journal of Limnology, Vol 68, Iss 2, Pp 359-367 (2009)
This research was designed to evaluate the influence of mussel (Unio pictorum mancus) size on mercury concentration in mussel soft tissues. It also evaluated the relationships between calcium, mercury and selenium in the mussel tissues. The mussel po
Externí odkaz:
https://doaj.org/article/af4e558d57584d90b605cadcb12472d5
Publikováno v:
Journal of Limnology, Vol 68, Iss 2, Pp 352-358 (2009)
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) wer
Externí odkaz:
https://doaj.org/article/be53ffe7a8a94db7b2227b8d17f91c0f
Autor:
Oscar RAVERA
Publikováno v:
Journal of Limnology, Vol 67, Iss 1, Pp 70-74 (2008)
The so-called "Concentration factor" (C.F.) should express a direct positive relationship between the concentration of a pollutant (e.g. metals, radioisotopes) in an organism and the concentration of the same pollutant in the water. While this index
Externí odkaz:
https://doaj.org/article/ca90f895f2734f35864f6ec06f72d153
Publikováno v:
Journal of Limnology, Vol 66, Iss 1, Pp 15-27 (2007)
Samples of Unio pictorum mancus collected monthly from spring 2003 to summer 2004 in the meso-oligotrophic Lake Maggiore and the eutrophic Lake Candia were compared to evaluate the influence of lake trophic conditions on mussel populations. Shell for
Externí odkaz:
https://doaj.org/article/ff64315ccdad4636a7e043ce094e6681
Publikováno v:
Journal of Limnology, Vol 66, Iss 1, Pp 28-39 (2007)
To assess the impact of lake trophy on trace element accumulation by Unio pictorum mancus, a population from the mesooligotrophic Lake Maggiore was compared with a population from the eutrophic Lake Candia. The element content in soft tissue and shel
Externí odkaz:
https://doaj.org/article/a7d1f66e0acd494ca847f836077e9f54
Publikováno v:
Journal of Limnology, Vol 64, Iss 2, Pp 153-158 (2005)
Manganese is an element of great importance in the life cycle of plants and animals. For example, it plays an essential role as an activator of various enzymatic systems such as isoenzymes of superoxide dismutase. Freshwater Unionidae concentrate rel
Externí odkaz:
https://doaj.org/article/1d7753e9f3df41da849c52c6e434858a
Publikováno v:
Journal of Limnology, Vol 64, Iss 2, Pp 113-118 (2005)
This research follows the variations in calcium and 14 trace metal concentrations in mussel shells (Unio pictorum) from two lakes with different trophic levels, Lake Levico and Lake Caldonazzo (Northern Italy) from 1934 to 2001. During this period, t
Externí odkaz:
https://doaj.org/article/f7ccc477300341e7ac9abba197b8d3f0
Publikováno v:
Journal of Limnology, Vol 62, Iss 2, Pp 121-138 (2003)
This research aims to test the reliability of environmental monitoring by bioaccumulators of pollutants; that is to establish a positive relationship between the pollutant concentrations in the bioaccumulator and those in the water in which it lives.
Externí odkaz:
https://doaj.org/article/fb0c6155dcd74f9faa2630b8e30a211c
Publikováno v:
Journal of Limnology, Vol 62, Iss 1, Pp 61-70 (2003)
This study was primarily designed to contribute to the debate "Do accumulator species reflect the element contamination level of their environment?" This research was carried out: 1) to know the distribution of 15 trace elements and calcium in shell
Externí odkaz:
https://doaj.org/article/d1c87e86f5844ce39b83189779cb328c