OLS : Record


Main Title Acute and chronic toxicity of copper to the estuarine copepod Eurytemora affinis final report / {microform} :
Author Hall, L.; Anderson, R. D.; Kilian, J. V.; Lewis, B. L.
CORP Author Maryland Univ., Queenstown. Wye Research and Education Center. ;Delaware Univ., Lewes. Coll. of Marine Studies.;Environmental Protection Agency, Annapolis, MD. Chesapeake Bay Program.
Publisher Printed by the U.S. Environmental Protection Agency for the Chesapeake Bay Program,
Place Published Annapolis, Md. :
Year Published 1998
Report Number EPA 903/R/98/005; EPA-CB993438010; CBP/TRS-198/98
Stock Number PB98-126055
OCLC Number 39728651
Subjects Toxicity; Aquatic animals; Copper; Copepods; Acute exposure; Toxic substances; Water chemistry; Chemical analysis; Eurytemora affinis; Heavy metals; Chesapeake Bay Program
Subject Added Ent Copper--Bioaccumulation--Chesapeake Bay (Md. and Va.); Copepoda--Chesapeake Bay (Md. and Va.); Chesapeake Bay (Md. and Va.)
Internet Access
Description Access URL
Library   Call Number Additional Info Location Date Modified
EJDD CB 00765 OASQA Library/Fort Meade,MD 03/26/1999
NTIS PB98-126055 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 01/01/1988
Collation iii, 34 p. : ill. ; 28 cm.
Abstract The objectives of this study were to conduct (48 and 96h) and chronic (8d) copper toxicity tests with the estuarine zooplankter, Eurytemora affinis and develop an acute to chronic ratio (ACR) for this species. Total dissolved copper, copper speciation and organic complexation were measured on selected samples during these toxicity tests. Determination of organic complexation was critical to determine the bioavailability of copper to the test species. Concentrations of total dissolved copper at selected test conditions displayed a loss of 20 to 35% over the course of the acute and chronic experiments with the most signficant loss occurring during the first 48 hours. Due to the reported loss of copper during exposures, a decay model was developed to calculate the concentrations that were used to determine the final toxicity values (adjusted copper concentrations). The 48h LC50, 96h LC50 and 8d chronic values were 83.0, 69,4 and 64 microgram/L dissolved copper, respectively, using the adjusted copper concentrations. An acute to chronic ratio of 1.3 was calculated using the 48 h and 8 d toxicity values.
Notes "February 1998." Shipping list no.: 98-0765-M. "EPA 903/R/98/005"--Cover. Includes bibliographical references (p. 31-34).
Supplementary Notes Prepared in cooperation with Delaware Univ., Lewes. Coll. of Marine Studies. Sponsored by Environmental Protection Agency, Annapolis, MD. Chesapeake Bay Program.
Availability Notes Product reproduced from digital image. Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)321-8547; and email at orders@ntis.fedworld.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA.
Author Added Ent
Hall, Lenwood W.
Corporate Au Added Ent Chesapeake Bay Program (U.S.)
PUB Date Free Form {1998}
Series Title Traced CBP/TRS ; 98/198
NTIS Prices PC A04/MF A01
BIB Level m
Medium microform
OCLC Time Stamp 19990323111823
Cataloging Source OCLC/T
Language eng
SUDOCS Number EP 1.88:AC 9
Origin OCLC
OCLC Rec Leader 01295nam 2200337Ia 45020