کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4416176 1307771 2007 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Persistent organic pollutants (POP) in a benthic omnivore – A comparison between lake and stream crayfish populations
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
Persistent organic pollutants (POP) in a benthic omnivore – A comparison between lake and stream crayfish populations
چکیده انگلیسی

We investigated the accumulation of PCB and DDT in crayfish populations in 10 streams in southern Sweden. The results were compared with an earlier study on crayfish in lakes from the same area. We found that the concentration of pollutants in crayfish did not differ between the two types of systems. Variation in body burden was higher in stream living crayfish probably because of the higher influence from pollutants deposited in the catchment area and the more dynamic transport in streams. In streams, p,p′-DDE concentrations were positively correlated to trophic status (total phosphorous) while PCB did not show any correlation with the nutrient regime. Further, mean ΣPCB and p,p′-DDE concentrations in crayfish did not correlate in streams. We suggest that the sources of the two pollutants differ for stream living crayfish. The results indicate that crayfish in streams are affected to a higher degree to pollutants in the catchment area and the precipitation regime. In lakes, internal processes govern uptake of pollutants in crayfish.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemosphere - Volume 66, Issue 6, January 2007, Pages 1070–1078
نویسندگان
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