| Main Title |
Variations in Larval Growth and Metabolism of an Estuarine Shrimp 'Palaemonetes pugio' during Toxicosis by an Insect Growth Regulator. |
| Author |
McKenney, C. L. ;
Celestial, D. M. ;
|
| CORP Author |
Environmental Research Lab., Gulf Breeze, FL. ;Technical Resources, Inc., Gulf Breeze, FL. |
| Publisher |
c1993 |
| Year Published |
1993 |
| Report Number |
EPA/600/J-93/287 ;CONTRIB-803; |
| Stock Number |
PB93-236255 |
| Additional Subjects |
Shrimp ;
Insects ;
Growth regulators ;
Toxicity ;
Water pollution effects(Animals) ;
Larvae ;
Estuaries ;
Growth ;
Metabolism ;
Oxygen ;
Analysis of variance ;
Reprints ;
Methoprene ;
Palaemonetes pugio
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB93-236255 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
9p |
| Abstract |
The report presents the following conclusions: (1) Exposure of the estuarine shrimp, Palaemonetes pugio, to a juvenile hormone analogue (> or = 8 microgram methoprene/l) throughout larval development inhibited successful completion of metamorphosis; (2) Methoprene exposure retarded growth in early larval stages and postlarvae, but enhanced growth in premetamorphic larvae; (3) Respiration rates of early larvae were elevated by methoprene exposure, but not so older larvae or postlarvae; (4) Lower net growth efficiency (K2 values) in methoprene-exposed early larvae suggests that increased metabolic demands reduced assimilated energy available for growth; and (5) Modifications in O:N ratios of premetamorphic larvae and postlarvae suggest that methoprene altered substrate utilization patterns during metamorphosis. |
| Supplementary Notes |
Pub. in Comparative Biochemistry and Physiology, v105C n2 p239-245 1993. See also PB90-264706. Prepared in cooperation with Technical Resources, Inc., Gulf Breeze, FL. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Variations in Larval Growth and Metabolism of an Estuarine Shrimp 'Palaemonetes pugio' during Toxicosis by an Insect Growth Regulator. |
| Category Codes |
68D; 57Y; 57H; 47D |
| NTIS Prices |
PC A02/MF A01 |
| Primary Description |
600/04 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
330925646 |
| Origin |
NTIS |
| Type |
CAT |
