Linked Life Data

9212333

Source:http://linkedlifedata.com/resource/pubmed/id/9212333

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1997-9-9
pubmed:abstractText
The toxicity of leachate water from acid-sulfate soil to the early embryonic development of the Sydney Rock oyster, Saccostrea commercialis, was assessed. Concentrations of acid-sulfate soil leachate water as low as 3.3% in seawater were found to decrease the normal development of oyster embryos after 48 hr exposure, and this effect could not be attributed to any significant change in pH or salinity. An EC50 value for the acid-sulfate soil leachate water of 2.5 to 2.9% in seawater was obtained, and the no observed effect concentration was determined at a concentration of 2% in seawater. In tests conducted with aluminum added to seawater, a significant decrease in the percentage of embryos developed to the D-veliger stage occurred at concentrations of 150 micrograms/liter and greater, with no effects at 100 micrograms/liter. An EC50 of 225 micrograms/liter for the effect of added aluminum on embryo survival was obtained and all embryos showed developmental abnormalities at concentrations of 400 micrograms/liter and greater. A significant decrease in the embryonic development occurred when the fertilized eggs were incubated in pH-adjusted seawater at pH values < or = 6.75, but no significant effects were found at pH 7.0 or above. Since aluminum was present in high concentrations in the acid-sulfate soil leachate water, it was concluded that aluminum was the main toxicant in the acid-sulfate water that disrupted the oyster embryonic development.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0147-6513
pubmed:author
pubmed:issnType
Print
pubmed:volume
37
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
30-6
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
Toxicity of acid-sulfate soil leachate and aluminum to embryos of the Sydney Rock oyster.
pubmed:affiliation
Ecotoxicology Section, Environment Protection Authority NSW, EPA/UTS Centre for Ecotoxicology, University of Technology-Sydney, Australia.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't