Main Title |
Toxicological and Physiological Responses of the Fish, 'Leiostomus xanthurus', Exposed to Chlorine Produced Oxidants. |
Author |
Middaugh, Douglas P. ;
Burnett, Louis E. ;
Couch, John A. ;
|
CORP Author |
Environmental Research Lab., Gulf Breeze, FL. |
Year Published |
1980 |
Report Number |
EPA-600/J-80-094 ;CONTRIB-378; |
Stock Number |
PB81-126559 |
Additional Subjects |
Fishes ;
Chlorine ;
Toxicology ;
Bioassay ;
Estuaries ;
Concentration(Composition) ;
Exposure ;
Oxidizers ;
Responses(Biology) ;
Salinity ;
Reprints ;
Leiostomus xanthurus ;
Toxic substances ;
Sewage treatment effluents
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB81-126559 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
13p |
Abstract |
The sublethal and lethal effects of chlorine produced oxidants (CPO) on juveniles of the estuarine teleost, Leiostomus xanthurus, were investigated in flowing water tests conducted at 30 plus or minus 1C and 26 to 31% salinity. Short-term LT50 tests were conducted at two nominal concentrations of NaOCl 1.0 and 1.4 mg/l (respective measured CPO concentrations 0.09 and 0.12 mg/l) which were sublethal in 2,880 minute exposures; and three nominal concentrations, 1.6, 1.8, and 3.2 mg/l NaOCl (respective measured CPO concentrations 0.13 and 0.37 mg/l) which were acutely toxic. Opercular ventilation rates in exposed spot were much higher than in control fish, but returned to rates only slightly above those of controls during the latter portion of the 2,880 minute exposure of the two sublethal CPO concentrations. Opercular rates at the three acutely toxic CPO concentrations remained much higher than control rates until the exposed fish died. Oxygen uptake by spot was depressed at all the measured concentrations of CPO tested. Histopathological examinations showed that gill respiratory ephithelial tissues sloghed away from the underlying pillar cells. Complete denudation of circulatory tissues and hemangiectic secondary lamellae were observed in gill tissues from fish exposed to the highest CPO concentrations of 0.37 mg/l. |
Supplementary Notes |
Pub. in Estuaries, v3 n2 p132-141 Jun 80. Prepared in cooperation with Belle W. Baruch Inst. for Marine Biology and Coastal Research, Columbia, SC. |
NTIS Title Notes |
Journal article. |
Title Annotations |
Reprint: Toxicological and Physiological Responses of the Fish, 'Leiostomus xanthurus', Exposed to Chlorine Produced Oxidants. |
PUB Date Free Form |
Jun 80 |
Category Codes |
6T; 6F; 57Y; 68D |
NTIS Prices |
PC A02/MF A01 |
Primary Description |
600/04 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
323789744 |
Origin |
NTIS |
Type |
CAT |