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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2004-4-19
pubmed:abstractText
The power relationships of short-term net uptake and of in-situ body burden with body weight were examined. The accumulation of soft tissue zinc in the American oyster (Crassostrea virginica) was related to time integration of uptake. Short term uptake of (65)Zn was measured in the laboratory. It was (i) a function of the (dry soft-tissue) weight of the oyster, (ii) inversely related to the salinity of the ambient water, and (iii) increased linearly with ambient concentrations. When in-situ soft-tissue zinc body burdens of oysters from the James River and the Rappahannock River were fit to power functions of body weights (y = aWb), the values of b for all sites were larger by 1 than the powers for (65)Zn uptake when b was adjusted for the oyster-bed salinities. The soft-tissue zinc concentration (y/W) of an oyster increased continuously, but the rate of the increase was reduced as the oyster grows larger. Both short-term uptake and in-situ body burden varied with salinity. The soft-tissue zinc concentrations of hooked mussels (Ischadium recurvum) from the Rappahannock River oyster beds, contrary to the oysters, appeared to be in equilibrium with ambient concentrations.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:issn
0269-7491
pubmed:author
pubmed:issnType
Print
pubmed:volume
82
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
191-6
pubmed:year
1993
pubmed:articleTitle
Weight and salinity effects on zinc uptake and accumulation for the American oyster (Crassostrea virginica Gmelin).
pubmed:affiliation
Virginia Institute of Marine Science, School of Marine Science, The College of William and Mary, Gloucester Point, Virginia 23062, USA.
pubmed:publicationType
Journal Article