| Main Title |
Responses of Early Life History Stages of the Striped Bass, 'Morone saxatilis' to Chlorination. |
| Author |
Middaugh, Douglas P. ;
Couch, John A. ;
Crane., Allan M. ;
|
| CORP Author |
Environmental Research Lab., Gulf Breeze, Fla. |
| Year Published |
1977 |
| Report Number |
EPA/600/J-77/032 ;Contrib-304; |
| Stock Number |
PB-269 932 |
| Additional Subjects |
Toxicity ;
Bass ;
Chlorination ;
Fresh water fishes ;
Life cycles ;
Bioassays ;
Lethal dosage ;
Pathology ;
Histology ;
Responses ;
Statistical analysis ;
Larvae ;
Salinity ;
Embryos ;
Water pollution effects(Animals) ;
Morone saxatilis
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB-269 932 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
15p |
| Abstract |
The toxicity of total residual chlorination (TRC) to early life stages of the striped bass, Morone saxatilis, was determined using percent embryo hatchability, incipient LC50 bioassays, histopathology, and avoidance responses. Beginning 8 to 9 hours after fertilization, developing embryos were exposed continuously to TRC in flowing water at 1,0-3.0 ppt salinity and 18 plus or minus 1 C. Fifty-six percent of the control group (no TRC exposure) hatched. None of the embryos exposed to a measured TRC concentration of 0.21 micrograms/l hatched. Only 3.5 percent of the embryos exposed to 0.07 micrograms/l TRC and 23% of those exposed to 0.01 micrograms/l hatched. Incipient LC50 bioassays were used to determine sensitivity of 2-, 12- and 30-day-old striped bass to concentrations of TRC in flowing water (1.0-3.0 ppt salinity at 18 plus or minus 1 C). The estimated incipient LC50 was 0.04 micrograms/l TRC for 2-day-old prolarvae, 0.07 micrograms/l for 12-day-old larvae and 0.04 microgram/l for 30-day-old juveniles. |
| Supplementary Notes |
Pub. in Chesapeake Science, v18 n1 p141-153 Mar 77. |
| NTIS Title Notes |
Journal article. |
| PUB Date Free Form |
1977 |
| Category Codes |
6T; 6F; 13B; 57Y; 68D |
| NTIS Prices |
PC A02/MF A01 |
| Primary Description |
600/04 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
323721492 |
| Origin |
NTIS |
| Type |
CAT |
