Main Title |
Effects of Fenvalerate on Larval Development of 'Palaemonetes pugio' (Holthuis) and on Larval Metabolism during Osmotic Stress. |
Author |
McKenney, C. L. ;
Hamaker, D. B. ;
|
CORP Author |
Environmental Research Lab., Gulf Breeze, FL. |
Year Published |
1984 |
Report Number |
EPA/600/J-84/198; |
Stock Number |
PB85-157055 |
Additional Subjects |
Growth ;
Larvae ;
Shrimps ;
Estuaries ;
Salinity ;
Life cycles ;
Mortality ;
Exposure ;
Stress(Physiology) ;
Oxygen ;
Consumption ;
Osmosis ;
Ecology ;
Insecticides ;
Metabolism ;
Acclimatization ;
Reprints ;
Palaemonetes pugio ;
Grass shrimps ;
Fenvalerate
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB85-157055 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
15p |
Abstract |
Larvae of the estuarine grass shrimp, Palaemonetes pugio, were reared in the laboratory from hatch through metamorphosis under optimal salinity conditions in a range of lethal and sublethal concentrations of the pyrethroid insecticide, fenvalerate. A nominal concentration of 3.2 ng fenvalerate/l significantly reduced the percentage of larvae that completed metamorphosis. Oxygen consumption rates were significantly higher for larvae exposed to this lethal concentration for 24 hr. Exposure to a sublethal concentration of 1.6 ng fenvalerate/l prolonged the duration of complete larval development. After 8-day exposure to fenvalerate, oxygen consumption rates were elevated when larvae were exposed acutely to hypo-osmotic stress. Alterations in metablic-salinity patterns of larval grass shrimp developing under sublethal concentrations of fenvalerate suggest reduction in the ecological fitness during this life stage by limiting capacity of larval shrimp to adapt to the fluctuating salinity conditions of estuarine waters. |
Supplementary Notes |
Pub. in Aquatic Toxicology 5, p343-355 Nov 84. |
NTIS Title Notes |
Journal article. |
Title Annotations |
Reprint: Effects of Fenvalerate on Larval Development of 'Palaemonetes pugio' (Holthuis) and on Larval Metabolism during Osmotic Stress. |
PUB Date Free Form |
1984 |
Category Codes |
8A; 6F; 47D; 57H; 57P |
NTIS Prices |
PC A02/MF A01 |
Primary Description |
600/04 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
510721612 |
Origin |
NTIS |
Type |
CAT |