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Title

Comparative performances of eggs and embryos of sea urchin (Paracentrotus lividus) in toxicity bioassays used for assessment of marine sediment quality

AuthorsKhosrovyan, Alla; Rodríguez-Romero, Araceli ; Salamanca, M. José; Del Valls, T. A.; Riba, Inmaculada ; Serrano, F.
KeywordsSea urchin egg
Weight-of-evidence
Sensitivity
Sea urchin embryo
Toxicity
Issue Date15-May-2013
PublisherElsevier
CitationMarine Pollution Bulletin 70(1-2): 204-209 (2013)
AbstractThe potential toxicity of sediments from various ports was assessed by means of two different liquid-phase toxicity bioassays (acute and chronic) with embryos and eggs of sea urchin Paracentrotus lividus. Performances of embryos and eggs of P. lividus in these bioassays were compared for their interchangeable applicability in integrated sediment quality assessment. The obtained endpoints (percentages of normally developed plutei and fertilized eggs) were linked to physical and chemical properties of sediments and demonstrated dependence on sediment contamination. The endpoints in the two bioassays were strongly correlated and generally exhibited similar tendency throughout the samples. Therein, embryos demonstrated higher sensitivity to elutriate exposure, compared to eggs. It was concluded that these tests could be used interchangeably for testing toxicity of marine sediments. Preferential use of any of the bioassays can be determined by the discriminatory capacity of the test or vulnerability consideration of the test subject to the surrounding conditions. © 2013 Elsevier Ltd.
URIhttp://hdl.handle.net/10261/101481
DOI10.1016/j.marpolbul.2013.03.006
Identifiersdoi: 10.1016/j.marpolbul.2013.03.006
issn: 0025-326X
Appears in Collections:(ICMAN) Artículos
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