期刊
MARINE ENVIRONMENTAL RESEARCH
卷 115, 期 -, 页码 11-19出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.marenvres.2016.01.007
关键词
Behavioral endpoint; Echinoderms; Ecotoxicology; Larval bioassay; Sea urchin; Sublethal effects
资金
- Flagship Project RITMARE - The Italian Research for the Sea
- Italian Ministry of Education, University and Research under the National Research Program
Behavioral endpoints have been used for decades to assess chemical impacts at concentrations unlikely to cause mortality. With recently developed techniques, it is possible to investigate the swimming behavior of several organisms under laboratory conditions. The aims of this study were: i) assessing for the first time the feasibility of swimming speed analysis of the early developmental stage sea urchin Paracentrotus lividus by an automatic recording system ii) investigating any Swimming Speed Alteration (SSA) on P. lividus early stages exposed to a chemical reference; iii) identifying the most suitable stage for SSA test. Results show that the swimming speed of all the developmental stages was easily recorded. The swimming speed was inhibited as a function of toxicant concentration. Pluteus were the most appropriate stage for evaluating SSA in P. lividus as ecotoxicological endpoint. Finally, swimming of sea urchin early stages represents a sensitive endpoint to be considered in ecotoxicological investigations. (C) 2016 Elsevier Ltd. All rights reserved.
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