ISSN:
1432-0703
Source:
Springer Online Journal Archives 1860-2000
Topics:
Energy, Environment Protection, Nuclear Power Engineering
,
Medicine
Notes:
Abstract Five tissues (breast muscle, liver, kidney, adipose tissue and medulla) of three species of Anatidae (Netta, rufina, Anas crecca andAnas clypeata) from the Ebro Delta have been analyzed for ∑DDT, polychlorobyphenyls (PCBs) and biogenic and petrogenic hydrocarbons, with the aim of obtaining information on the biodynamics of these compounds in wildbirds. Polychlorobiphenyls and DDTs show different accumulation patterns, probably related to their different lipophilicity and the lipid composition of each tissue. Metabolic, less polar, lipids (adipose tissue) accumulate preferentially PCBs, whereas the structural ones (e.g., medulla) contain relatively more ∑DDT. The overall physiological dynamics of the species play an important role. Thus, the more zoophagous (Anas sp.) are more heavily contaminated and the liver contains relatively more PCBs than ∑DDT, contrary to the phytophagousNetta rufina. Mobilization of PCBs from the adipose tissue to the breast muscle is also related to the migratory behavior of the species (higher inAnas sp.). Petroleum hydrocarbons were below the detection limit in all species, but a large variety of biogenic components indicative of the feeding habits of the organisms were identified for the first time, particularly in the liver. Thus, algal indicators were abundant inNetta rufina, whereas insect and higher plant lipids were identified inAnas clypeata.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01055812
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