| Main Title |
Cadmium Toxicity to Three Species of Estuarine Invertebrates. |
| Author |
Pesch, Gerald G. ;
Stewart, Nelson E. ;
|
| CORP Author |
Environmental Research Lab., Narragansett, RI. |
| Year Published |
1981 |
| Report Number |
EPA-600/J-80-235 ;ERLN-J134; |
| Stock Number |
PB81-184707 |
| Additional Subjects |
Cadmium ;
Toxicology ;
Invertebrates ;
Toxicity ;
Estuaries ;
Metals ;
Bioassay ;
Lethal dosage ;
Reprints ;
Palaemonetes pugio ;
Grass shrimp ;
Pagurus longicarpus ;
Hermit crab ;
Argopecten irradians ;
Bay scallop ;
Bioaccumulation
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB81-184707 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
12p |
| Abstract |
Three species of estuarine invertebrates, Palaemonetes pugio (grass shrimp), Pagurus longicarpus (hermit crab) and Argopecten irradians (bay scallop), were exposed to Cd in flowing seawater at concentrations of 0.06, 0.12, 0.25, 0.5 and 1.0 mg/litre. Incipient LC50 values of 0.53 and 0.07 mg/litre were estimated for bay scallop and hermit crab, respectively. The toxicity curve for grass shrimp had not stabilized, but the incipient LC50 value was estimated to fall within a range of 0.2 to 0.3 mg/litre. Short-term response, as measured by time to 50% mortality at the highest Cd concentration, was 10, 21 and 23 days for the bay scallop, hermit crab and grass shrimp, respectively. Scallop growth was inhibited at all exposure concentrations with a measured 42-day EC50 value of 0.078 mg/litre Cd. Byssal thread detachment precedes death in bay scallops. An EC50 value of 0.54mg/litre Cd for gyssal detachment was measured on day 8 of the bioassay before appreciable mortality. This compared favorably with the incipient LC50 value of 0.53mg/litre Cd. Cadmium accumulation occurred at all concentrations in bay scallop and grass shrimp. |
| Supplementary Notes |
Pub. in Marine Environmental Research 3, p145-156 1980. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Cadmium Toxicity to Three Species of Estuarine Invertebrates. |
| PUB Date Free Form |
Mar 81 |
| Category Codes |
6T; 8A; 57Y; 47D |
| NTIS Prices |
PC A02/MF A01 |
| Primary Description |
600/05 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
323796013 |
| Origin |
NTIS |
| Type |
CAT |
