Document Detail


Effects of copper on the fertilization success of the soft coral Lobophytum compactum.
MedLine Citation:
PMID:  15998546     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
This study provides the first information on the effects of various concentrations of copper on the fertilization success of gametes from the soft coral Lobophytum compactum. Two experiments were conducted to determine the effect of copper on fertilization success during the mass coral spawning in 2004 on the Great Barrier Reef (GBR). The results from the first experiment showed a surprising resistance to copper with control treatments showing 90% fertilization compared to 65% fertilization in measured copper concentrations up to 132 microg/L. Copper concentrations of 69 microg/L and higher resulted in significantly reduced fertilization success when compared to the controls. Copper doses were increased in experiment 2 and the EC50 value for copper effects on fertilization success was 261 microg/L (208-328 microg/L, 95% confidence limits). In this follow-up experiment, fertilization success was significantly lower than the controls after exposure to copper concentrations of 117 microg/L and above. The EC50 value reported here is much higher than those found in the literature on fertilization experiments conducted on hard coral gametes and also for the fertilization success of other marine organisms, including sea urchins, oysters and fish.
Authors:
A J Reichelt-Brushett; K Michalek-Wagner
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Aquatic toxicology (Amsterdam, Netherlands)     Volume:  74     ISSN:  0166-445X     ISO Abbreviation:  Aquat. Toxicol.     Publication Date:  2005 Sep 
Date Detail:
Created Date:  2005-08-15     Completed Date:  2006-01-05     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8500246     Medline TA:  Aquat Toxicol     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  280-4     Citation Subset:  IM    
Affiliation:
School of Environmental Science and Management, Southern Cross University, P.O. Box 157, Lismore, NSW 2480, Australia. areichel@scu.edu.au
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MeSH Terms
Descriptor/Qualifier:
Animals
Anthozoa / drug effects*,  physiology*
Copper / toxicity*
Dose-Response Relationship, Drug
Fertilization / drug effects
Ovum / drug effects
Pacific Ocean
Toxicity Tests
Chemical
Reg. No./Substance:
7440-50-8/Copper

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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