Acute and chronic cadmium toxicity to a saltwater cladoceran Moina monogolica Daday and its relative importance.

Ecotoxicology
Zao-Sheng WangXian Zhang

Abstract

Acute and chronic toxicity tests of a saltwater cladoceran Moina monogolica Daday exposed to cadmium were conducted according to the American Society for Testing and Materials (ASTM) guidelines. The 24- and 48-h LC50s and their 95% confidence intervals (CIs) were calculated as 9.59 (8.91-10.26) and 1.87 (1.46-2.32) mg Cd/l, respectively, based on measured cadmium concentrations. When compared with different phyla or classes of saltwater animals, M. monogolica had moderate sensitivity and was suitable to be used as an indicator organism. Eight end points used to evaluate chronic effects were affected at chronic cadmium concentrations. Test organisms ceased to reproduce when exposed to equal to or greater than 308.10 microg Cd/l. Comparisons of chronic effects showed that mechanisms of metal accumulation patterns M. monogolica exposed to cadmium are different from those of dissolved copper exposure. The point estimates using linear regression equations of net reproductive rate generated the maximum-acceptable-toxicant concentration of 1.78 microg Cd/l, the lowest-observed-effect concentration of 3.01 microg Cd/l and the no-observed-effect concentration of 1.11 microg Cd/l. Comparisons among thresholds, cadmium concentrations in n...Continue Reading

References

Feb 1, 1985·Ecotoxicology and Environmental Safety·C J van LeeuwenP S Griffioen
Jun 1, 1997·Ecotoxicology and Environmental Safety·W K Walthall, J D Stark
Nov 1, 2001·Environmental Science & Technology·S D WinslowJ L Sinclair
Jan 5, 2002·Aquatic Toxicology·Brita T A MuyssenBart T A Bossuyt
Oct 3, 2002·Aquatic Toxicology·Carlos BarataAmadeu M V M Soares
Apr 1, 1962·Canadian Journal of Microbiology·R R GUILLARD, J H RYTHER
Nov 20, 2004·Aquatic Toxicology·K A C De SchamphelaereC R Janssen
Jun 1, 2005·Ecotoxicology and Environmental Safety·Bart T A BossuytColin R Janssen
Apr 20, 2006·Ecotoxicology·Gerardo García-GarcíaS S S Sarma
Apr 17, 2007·Marine Pollution Bulletin·Luoping ZhangWeiqi Chen
May 9, 2007·Archives of Environmental Contamination and Toxicology·Zaosheng WangDeyi Wu
Nov 13, 2007·Integrated Environmental Assessment and Management·W Ray Arnold, Jeffrey S Cotsifas

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Citations

Jun 12, 2012·Environmental Pollution·D BatistaF Cássio
Sep 18, 2016·Environmental Science and Pollution Research International·G HariharanR Ramesh
Sep 5, 2018·Archives of Environmental Contamination and Toxicology·Shlair A Sadeq, Andrew P Beckerman
Mar 30, 2018·Environmental Science and Pollution Research International·Meiru WangShan Wang

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