Linked Life Data

1641647

Source:http://linkedlifedata.com/resource/pubmed/id/1641647

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1992-9-3
pubmed:abstractText
As part of a project on the behaviour of radionuclides released by the Angra Nuclear Power Station in the marine environment, laboratory experiments were performed to study cesium and cobalt accumulation by juvenile groupers (Epinephelus sp.). The fishes were kept in aquariums equipped with gravel-bed filters spiked with 60Co (150 KBq/l) and 137Cs (75 KBq/l). Uptake was only via water since the fishes received only non-radioactive food during the 4 months of experiment. Cesium accumulation in muscle was higher than in any other organ, reaching concentration factors (CFs) of 5 (fresh weight basis). Cobalt, in contrast, was concentrated mostly in the liver, gut and skin and scales. Cobalt CF in muscle tissue was 8 x 10(-2), lower than any previously reported figure. Chromatographic analysis of the water at the beginning and end of the experiment showed that cobalt had been completely converted from 60CoCl2 to non-cationic forms, most probably through complexation with organic ligands, mediated by the intense microbial activity of the filter bed. This conversion apparently enhanced cobalt bioavailability since a second experiment performed with this aged seawater yielded CFs for muscle tissue higher by a factor of 2.5.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0048-9697
pubmed:author
pubmed:issnType
Print
pubmed:day
18
pubmed:volume
120
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
205-12
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Bioaccumulation of 137Cs and 60Co by a tropical marine teleost Epinephelus sp.
pubmed:affiliation
Departamento de Protecão Radiológica Ambiental, Instituto de Radioprotecão e Dosimetria, CNEN, Rio de Janeiro, Brazil.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't