Aqueous uptake and sublethal toxicity of p,p′-DDE in non-feeding larval stages of Antarctic krill (Euphausia superba)

Poulsen, Anita H., Kawaguchi, So, Kukkonen, Jussi V. K., Leppanen, Matti T. and Bengtson Nash, Susan M. (2012) Aqueous uptake and sublethal toxicity of p,p′-DDE in non-feeding larval stages of Antarctic krill (Euphausia superba). Environmental Pollution, 160 1: 185-191. doi:10.1016/j.envpol.2011.09.022


Author Poulsen, Anita H.
Kawaguchi, So
Kukkonen, Jussi V. K.
Leppanen, Matti T.
Bengtson Nash, Susan M.
Title Aqueous uptake and sublethal toxicity of p,p′-DDE in non-feeding larval stages of Antarctic krill (Euphausia superba)
Formatted title
Aqueous uptake and sublethal toxicity of p,p′-DDE in non-feeding larval stages of Antarctic krill (Euphausia superba)
Journal name Environmental Pollution   Check publisher's open access policy
ISSN 0269-7491
1873-6424
Publication date 2012-01
Year available 2011
Sub-type Article (original research)
DOI 10.1016/j.envpol.2011.09.022
Volume 160
Issue 1
Start page 185
End page 191
Total pages 7
Place of publication Kidlington, Oxford, United Kingdom
Publisher Pergamon
Collection year 2012
Language eng
Formatted abstract
This study evaluated the toxicological sensitivity of non-feeding larval stages of a key Antarctic species (Antarctic krill, Euphausia superba) to p,p′-dichlorodiphenyl dichloroethylene (p,p′-DDE) exposure. The aqueous uptake clearance rate of 84 mL g-1 preserved weight (p.w.) h -1 determined for p,p′-DDE in Antarctic krill larvae is comparable to previous findings for small cold water crustaceans and five times slower than the rates reported for an amphipod inhabiting warmer waters. Natural variations in larval physiology appear to influence contaminant uptake and larval krill behavioural responses, strongly highlighting the importance of time of measurement for ecotoxicological testing. Sublethal narcosis (immobility) was observed in larval Antarctic krill from p,p′-DDE body residues of 0.2 mmol/kg p.w., which is in agreement with findings for adult krill and temperate aquatic species. The finding of comparable body residue-based toxicity of p,p′-DDE between polar and temperate species supports the tissue residue approach for environmental risk assessment of polar ecosystems.
Keyword Polar ecotoxicology
Early life stage (ELS)
Persistent organic pollutant (POP)
Critical body residue (CBR)
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Available online 19 October 2011

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2012 Collection
National Research Centre for Environmental Toxicology Publications
 
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Created: Thu, 12 Apr 2012, 09:03:48 EST by Ms Anita Poulsen on behalf of National Res Centre For Environmental Toxicology