Journal article
Lethal and sub-lethal effects of environmentally relevant levels of imidacloprid pesticide to Eastern School Prawn, Metapenaeus macleayi
The Science of the Total Environment, Vol.742, 140449
10/11/2020
PMID: 32640399
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Abstract
Pesticides are frequently employed to enhance agricultural production. Neonicotinoid pesticides (including imidacloprid) are often used to control sucking insects but have been shown to impact aquatic crustaceans. Imidacloprid is highly water soluble and has been detected in estuaries where it has been applied in adjacent catchments. We examined the impact of environmentally relevant concentrations of imidacloprid on Eastern School Prawn (Metapenaeus macleayi), an important exploited crustacean in Australia. Prawns were held for 8 days in estuarine water containing 0–4 μg L−1 of imidacloprid to assess potential lethal and non-lethal impacts. There was a non-linear relationship between exposure concentration and tissue concentration, with tissue concentrations peaking at exposures of 1.4 μg L−1 (1.16 to 1.64 μg L−1, 90% C.I.). There was no evidence for direct mortality associated with imidacloprid exposure, but exposure did influence the organism metabolome which likely reflects alterations in metabolic homeostasis, such as changes in the fatty acid composition which indicate a shift in lipid homeostasis. There was a positive correlation between exposure concentration and moulting frequency. Shedding of the exoskeleton may represent a mechanism through which prawns can expel the contaminant from their bodies. These results indicate that prawns experience several different sub-lethal effects when exposed to these pesticides, which may have implications for the health of populations.
Details
- Title
- Lethal and sub-lethal effects of environmentally relevant levels of imidacloprid pesticide to Eastern School Prawn, Metapenaeus macleayi
- Creators
- Catherine McLuckie (Author) - School of Environmental and Life Sciences, University of Newcastle, University Drive, Callaghan, New South Wales 2308, AustraliaNatalie Moltschaniwskyj (Author) - School of Environmental and Life Sciences, University of Newcastle, University Drive, Callaghan, New South Wales 2308, AustraliaTroy Gaston (Author) - Port Stephens Fisheries Institute, New South Wales Department of Primary Industries, Locked Bag 1, Nelson Bay, New South Wales 2315, AustraliaR. Hugh Dunstan (Author) - School of Environmental and Life Sciences, University of Newcastle, University Drive, Callaghan, New South Wales 2308, AustraliaMarcus Crompton (Author) - School of Environmental and Life Sciences, University of Newcastle, University Drive, Callaghan, New South Wales 2308, AustraliaPeter Butcherine (Author) - National Marine Science Centre, School of Environment, Science and Engineering, Southern Cross University, 2 Bay Drive, Coffs Harbour, New South Wales 2480, AustraliaKirsten Benkendorff (Author) - National Marine Science Centre, School of Environment, Science and Engineering, Southern Cross University, 2 Bay Drive, Coffs Harbour, New South Wales 2480, AustraliaMatthew D Taylor (Author) - School of Environmental and Life Sciences, University of Newcastle, University Drive, Callaghan, New South Wales 2308, Australia
- Publication Details
- The Science of the Total Environment, Vol.742, 140449
- Publisher
- Elsevier B.V
- Identifiers
- 991012925587202368
- Academic Unit
- Faculty of Science and Engineering; School of Environment, Science and Engineering; National Marine Science Centre; Science
- Language
- English
- Resource Type
- Journal article