Main Title |
Toxicity Test Using Life Stages of 'Champia parvula' (Rhodophyta). |
Author |
Steele, R. L. ;
Thursby, G. D. ;
|
CORP Author |
Environmental Research Lab., Narragansett, RI. |
Year Published |
1983 |
Report Number |
ERLN-242 ;EPA-600/J-82-186; |
Stock Number |
PB84-138619 |
Additional Subjects |
Toxicology ;
Silver ;
Copper ;
Cadmium ;
Algae ;
Plants(Botany) ;
Lead(Metal) ;
Cyanide ;
Growth inhibition ;
Reproduction(Biology) ;
Hazards ;
Reprints ;
Water pollution effects(Plants) ;
Heavy metals ;
Rhodophyta ;
Champia parvula
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB84-138619 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
18p |
Abstract |
A static-renewal, 11- to 14-day toxicity test has been developed using the life cycle of the marine red alga Champia parvula (C. Ag.) Harv. It measures the vegetative growth, formation of tetrasporangia (meiosis), and formation of cystocarps (sexual fusion). The procedure has been tested with silver, copper, cadmium, lead, and cyanide. The maximum acceptable toxicant concentration (MATC) ranges were calculated for vegetative growth of females and tetrasporophytes and for production of tetrasporangia based on statistically significant differences. The MATCs were determined for sexual reproduction using the presence or absence of cystocarps to measure significance; this yielded MATC values similar to those determined by the other parameters. However, sexual reproduction was the most sensitive of the four end points examined because it dealt with absolute absence rather than statistical differences. |
Supplementary Notes |
Pub. in American Society for Testing and Materials, Philadelphia, p73-89 1983. |
NTIS Title Notes |
Journal article. |
Title Annotations |
Reprint: Toxicity Test Using Life Stages of 'Champia parvula' (Rhodophyta). |
PUB Date Free Form |
1983 |
Category Codes |
6T; 6F; 57Y; 68D |
NTIS Prices |
PC A02/MF A01 |
Primary Description |
600/05 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
407621159 |
Origin |
NTIS |
Type |
CAT |