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RECORD NUMBER: 10 OF 538

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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	Some EPA libraries have a fiche copy filed under the call number shown.		07/26/2022

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.

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