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Investigating lethal and sublethal effects of the trace metals cadmium, cobalt, lead, nickel and zinc on the anemone Aiptasia pulchella, a cnidarian representative for ecotoxicology in tropical marine environments

Investigating lethal and sublethal effects of the trace metals cadmium, cobalt, lead, nickel and... The zooxanthellate sea anemone Aiptasia pulchella is found throughout the tropical and subtropical oceans of the Indo-Pacific and is easily maintained in aquaria, posing potential suitability as a standard tropical marine test organism for use in ecotoxicology. To gain an understanding of the sensitivity of A. pulchella to trace metals, 96-h static-renewal toxicity tests were conducted. Values of 96-h LC50 between 946 and 1196gL1 were estimated for cadmium, between 595 and 1146gL1 for zinc, 8060 and 12352gL1 for lead and 2209 and 5751gL1 for nickel. In addition, preliminary assessment of rapid tentacle retraction was made. Six-hour EC50 values of 355 and 979gL1 for cadmium, between 384 and 493gL1 for zinc, between 2340 and 2584gL1 for nickel, and 2610gL1 for lead, were estimated for severe tentacle retraction. Cobalt concentrations up to 1547gL1 caused extreme zooxanthellae loss, but no more than 10 mortality and no rapid severe tentacle retraction. The present study has provided important baseline information, enabling comparison of the acute sensitivity of A. pulchella to trace metals with other marine invertebrates, and guiding the development of sublethal endpoints. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Marine & Freshwater Research CSIRO Publishing

Investigating lethal and sublethal effects of the trace metals cadmium, cobalt, lead, nickel and zinc on the anemone Aiptasia pulchella, a cnidarian representative for ecotoxicology in tropical marine environments

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Publisher
CSIRO Publishing
Copyright
Copyright © The Author(s). Published by CSIRO Publishing
ISSN
1323-1650
eISSN
1323-1650
DOI
10.1071/MF13195
Publisher site
See Article on Publisher Site

Abstract

The zooxanthellate sea anemone Aiptasia pulchella is found throughout the tropical and subtropical oceans of the Indo-Pacific and is easily maintained in aquaria, posing potential suitability as a standard tropical marine test organism for use in ecotoxicology. To gain an understanding of the sensitivity of A. pulchella to trace metals, 96-h static-renewal toxicity tests were conducted. Values of 96-h LC50 between 946 and 1196gL1 were estimated for cadmium, between 595 and 1146gL1 for zinc, 8060 and 12352gL1 for lead and 2209 and 5751gL1 for nickel. In addition, preliminary assessment of rapid tentacle retraction was made. Six-hour EC50 values of 355 and 979gL1 for cadmium, between 384 and 493gL1 for zinc, between 2340 and 2584gL1 for nickel, and 2610gL1 for lead, were estimated for severe tentacle retraction. Cobalt concentrations up to 1547gL1 caused extreme zooxanthellae loss, but no more than 10 mortality and no rapid severe tentacle retraction. The present study has provided important baseline information, enabling comparison of the acute sensitivity of A. pulchella to trace metals with other marine invertebrates, and guiding the development of sublethal endpoints.

Journal

Marine & Freshwater Research – CSIRO Publishing

Published: May 7, 2014

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