Record Display for the EPA National Library Catalog

RECORD NUMBER: 23 OF 1168

OLS Field Name OLS Field Data
Main Title Acute Toxicities of Selected Heavy Metals to the Softshell Clam, 'Mya arenaria'.
Author Eisler., Ronald ;
CORP Author Environmental Research Lab., Narragansett, RI.
Year Published 1977
Report Number EPA/600/J-77/150;
Stock Number PB-295 383
Additional Subjects Clams ; Toxicology ; Mollusca ; Marine biology ; Shellfish ; Bioassay ; Concentration(Composition) ; Lethal dosage ; Tests ; Copper ; Cadmium ; Zinc ; Lead(Metal) ; Manganese ; Nickel ; Salinity ; Temperature ; Seasonal variations ; Soft shell clams ; Heavy metals ; Reprints ; Toxic substances ; Mya arenaria
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB-295 383 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 11p
Abstract
Static acute toxicity bioassays with adult softshell clams and salts of copper, cadmium, zinc, lead, manganese, and nickel were conducted at 30 o/oo salinity and 22C. Concentrations fatal to 50% in 168 hours, in mg/l (ppm) metal added at start, were 0.035 for Cu, 0.150 for Cd, 1.55 for Zn, 8.80 for Pb, 300.0 for Mn, and >50.0 for Ni. Additional tests were conducted with Zn2+ and Cu2+ at 30 o/oo during fall (17.5C) and winter (4C); clams displayed increasing survival with decreasing temperature. For Cu, LC-50 (336 hr) values at 17C and 4C were 0.086 and >3.00 mg/l, respectively; for Zn these were 2.65 and >25.0, respectively.