The use of Chironomus riparius larvae to assess effects of pesticides from rice fields in adjacent freshwater ecosystems.

Content Provider	Semantic Scholar
Author	Faria, Mafalda S. Nogueira, António José Arsénia Soares, Amadeu M. V. M.
Copyright Year	2007
Abstract	A bioassay with Chironomus riparius larvae, using larval development and growth as endpoints, was carried out inside a rice field and in the adjacent wetland channel in Portugal, during pesticide treatments (molinate, endosulfan and propanil) to determine impact caused by pesticide contamination in freshwater ecosystems. The bioassay was also performed under laboratory conditions, to assess whether in situ and laboratory bioassays demonstrated comparable results. Growth was inhibited by concentrations of endosulfan (2.3 and 1.9 microgL(-1) averages) in water from rice field in both the field and laboratory, and by concentrations of endosulfan (0.55 and 0.76 microgL(-1) averages) in water from the wetland channel in the laboratory bioassay, while development was not affected. C. riparius larvae were not affected by molinate and propanil concentrations. The results indicate that endosulfan treatments in rice fields may cause an ecological impairment in adjacent freshwater ecosystems. The results also indicate that laboratory testing can be used to assess in situ toxicity caused by pesticide contamination.
File Format	PDF HTM / HTML
DOI	10.1016/j.ecoenv.2006.11.018
PubMed reference number	17223193
Journal	Medline
Volume Number	67
Issue Number	2
Alternate Webpage(s)	http://www.pfigueiredo.org/Arroz_Aveiro.pdf
Alternate Webpage(s)	https://doi.org/10.1016/j.ecoenv.2006.11.018
Journal	Ecotoxicology and environmental safety
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article