Please use this identifier to cite or link to this item: http://hdl.handle.net/10773/6419
Title: Assessment of the Effects of the Pesticide Imidacloprid on the Behaviour of the Aquatic Oligochaete Lumbriculus variegatus
Author: Sardo, AM
Soares, AMVM
Issue Date: 2010
Publisher: Springer Verlag
Abstract: Contaminants, such as pesticides, can cause direct toxic effects when released into aquatic environments. Suitably sensitive species can help us understand and predict the impacts of such pollutants. Automated sediment toxicity testing and biomonitoring has grown rapidly, and biomonitoring instruments have proven appropriate for studying the effects of pollutants. A new approach in online biomonitoring, using the multispecies freshwater biomonitor was developed in the present study, using whole-sediment toxicity tests and behavioural responses of the freshwater oligochaete Lumbriculus variegatus. Endpoints, such as mortality and growth, were used to study the effects of the pesticide imidacloprid and to achieve a gradient of responses; exposures to contaminated sediments were performed over 10 days' duration (short-term tests). High mortality was observed in the three highest concentrations of imidacloprid, and inhibition of behaviour was monitored along a gradient of pesticide concentration. Exposure to imidacloprid-contaminated sediments affected growth, behaviour, and avoidance in L. variegatus.
Peer review: yes
URI: http://hdl.handle.net/10773/6419
DOI: 10.1007/s00244-010-9470-0
ISSN: 0090-4341
Appears in Collections:BIO - Artigos

Files in This Item:
File Description SizeFormat 
201_ AECT_2010_58_648.pdf326 kBAdobe PDF    Request a copy


FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpace
Formato BibTex MendeleyEndnote Degois 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.