کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4414291 1307707 2008 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
In situ assay with the midge Kiefferulus calligaster for contamination evaluation in aquatic agro-systems in central Thailand
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
In situ assay with the midge Kiefferulus calligaster for contamination evaluation in aquatic agro-systems in central Thailand
چکیده انگلیسی

The aims of this study were to verify the suitability of in situ tests using the tropical midge Kiefferulus calligaster and to evaluate the most sensitive endpoint for the assessment of aquatic pesticide contamination. In situ tests were carried out in freshwater drainage channels (farm channels) that supply vegetable crops and receive considerable pesticide spray drift, and at channels outside farms (main channels). Moreover a pesticide-free farm was used as reference site. The endpoints analysed were: survival of the larvae, body length increment, capsule width increment, cholinesterase activity and glutathione S-transferase activity. Seasonal change was investigated as rainy season and dry season. Deleterious effects were observed at some farms especially during the rainy season when farmers apply heavier doses of pesticides. However, high mortality rates observed in main channels suggest that these water bodies are also affected by other impacts besides pesticide use. This work shows the potential of the in situ assay with K. calligaster as a tool for the environmental quality assessment of tropical aquatic ecosystems.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemosphere - Volume 71, Issue 10, May 2008, Pages 1877–1887
نویسندگان
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