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Temporal changes in the sensitivity of coastal Antarctic zooplankton communities to diesel fuel: a comparison between single- and multi-species toxicity tests

Citation

Payne, SJ and King, CK and Marcus Zamora, L and Virtue, P, Temporal changes in the sensitivity of coastal Antarctic zooplankton communities to diesel fuel: a comparison between single- and multi-species toxicity tests, Environmental Toxicology and Chemistry, 33, (4) pp. 882-890. ISSN 0730-7268 (2014) [Refereed Article]

Copyright Statement

Copyright 2014 SETAC

DOI: doi:10.1002/etc.2522

Abstract

Despite increasing human activity and risk of fuel spills in Antarctica, little is known about the impact of fuel on Antarctic marine fauna. The authors performed both single- and multi-species (whole community) acute toxicity tests to assess the sensitivity of an Antarctic coastal zooplankton community to the water-accommodated fraction of Special Antarctic Blend diesel. Single-species tests using abundant copepods Oncaea curvata, Oithona similis, and Stephos longipes allowed comparisons of sensitivity of key taxa and of sensitivity estimates obtained from traditional single-species and more novel multi-species tests. Special Antarctic Blend diesel caused significant mortality and species compositional change in the zooplankton community within 4 d to 7 d. The sensitivity of the community also increased across the summer sampling period, with decreasing 7-d median lethal concentration (LC50) values for total petroleum hydrocarbons (TPH): 1091 g TPH/L in early January 2011, 353 g TPH/L in mid January 2011, and 186 g TPH/L in early February 2011. Copepods showed similar sensitivities to Special Antarctic Blend diesel in single-species tests (7-d LC50s: O. curvata, 158 g TPH/L; O. similis, 176 g TPH/L; S. longipes, 188 g TPH/L). The combined use of single- and multi-species toxicity tests is a holistic approach to assessing the sensitivity of key species and the interactions and interdependence between species, enabling a broader understanding of the effects of fuel exposure on the whole zooplankton community.

Item Details

Item Type:Refereed Article
Keywords:copepod, hydrocarbon, oil spill
Research Division:Biological Sciences
Research Group:Ecology
Research Field:Marine and Estuarine Ecology (incl. Marine Ichthyology)
Objective Division:Environment
Objective Group:Flora, Fauna and Biodiversity
Objective Field:Antarctic and Sub-Antarctic Flora, Fauna and Biodiversity
Author:Payne, SJ (Miss Sarah Payne)
Author:Marcus Zamora, L (Ms Lara Marcus)
Author:Virtue, P (Associate Professor Patti Virtue)
ID Code:89016
Year Published:2014
Web of Science® Times Cited:12
Deposited By:IMAS Research and Education Centre
Deposited On:2014-02-24
Last Modified:2017-11-02
Downloads:0

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