Study of the distribution of trace elements in six species of marine organisms of the Ligurian Sea (north-western Mediterranean)--comparison with previous findings.

摘要: This paper presents the results of determination several trace elements (total and organic mercury, selenium, cadmium, lead, copper, manganese zinc) in six species marine organisms (Nephrops norvegicus, Engraulis encrasicolus, Mullus barbatus, surmuletus, Merluccius merluccius, Sarda sarda), sampled Ligurian Sea (North-West Mediterranean) during a three-year period, from 1998 to 2000. The analysed (388 samples) are same studied previous investigations area (260 samples), so that comparison with data measured 1977-1986 was possible, order evaluate variation environment respect period. Biological parameters specimens (length weight individuals, also sex for N. norvegicus) were taken into account make possible between old new data. No appreciable occurred levels period 1998-2000, while collected about 25 years ago showed decrease all except selenium.