Organochlorine pesticides in fish from the southern Baltic Sea: levels, bioaccumulation features and temporal trends during the 1995-2006 period.
The levels of HCH isomers, HCB and summation DDTs were determined in five species of Baltic fish collected during 1995-2006. Some downward time trends of HCH isomer, pp'-DDE and pp'-DDD concentrations in Baltic fish were observed; in contrast, HCB and DDT concentrations did not exhibit any obvious trend. Concentrations of summation HCHs expressed on a lipid weight basis were very similar in all species studied. In contrast, concentrations of summation DDTs varied in tested species. The most abundant HCH isomer was beta-HCH and among DDT-related compounds, pp'-DDE prevailed. In our investigations the sampling sites were not a crucial factor for organochlorine pesticide concentrations and patterns observed in fish, but the occurrence of several inter-species differences in the bioaccumulation features of OC pesticides were observed. For cod there was a positive correlation between fish size (length) and summation DDT concentration. In herring, sprat and salmon samples, summation DDT concentrations were negatively correlated with fat content.
Szlinder-Richert
Joanna
J
Sea Fisheries Institute in Gdynia, 1 Kołłataja Street, Gdynia PL 81-332, Poland. jszlinder@mir.gdynia.pl
Barska
Iwona
I
Mazerski
Jan
J
Usydus
Zygmunt
Z
D000818:Animals; D049628:Body Size; D004784:Environmental Monitoring; D005399:Fishes / Q000033:anatomy & histology / Q000378:metabolism*; D006843:Hydrocarbons, Chlorinated / Q000378:metabolism*; D008055:Lipids / Q000032:analysis; D009792:Oceans and Seas; D010573:Pesticide Residues / Q000378:metabolism*; D014874:Water Pollutants, Chemical / Q000378:metabolism*
D006843:Hydrocarbons, Chlorinated; D008055:Lipids; D010573:Pesticide Residues; D014874:Water Pollutants, Chemical