||Changes in the Physiological Performance and Energy Metabolism of an Estuarine Mysid 'Mysidopsis bahia' Exposed in the Laboratory through a Complete Life Cycle to the Defoliant DEF.
McKenney, C. L. ;
Hamaker, T. L. ;
Matthews., E. ;
||Environmental Research Lab., Gulf Breeze, FL.
Animal physiology ;
Water pollution effects(Animals) ;
DEF-6 pesticide ;
Energy metabolism ;
Life cycles ;
Phosphorotrithioic acid/(tributyl-ester) ;
Phosphorus organic compounds ;
Toxic substances ;
Marine biology ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||Measures of physiological performance and energy metabolism were made on an estuarine mysid (Mysidopsis bahia) exposed throughout a life cycle to the defoliant DEF. DEF concentrations > or = 0.246 microgram/l reduced survival through release of the first brood. Young production was completely arrested in DEF concentrations > or = 0.606 microgram/l, while concentrations > or = 0.085 microgram DEF/l reduced young production by the population. Concentrations > or = 0.140 microgram/l and > or = 0.085 microgram/l retarded growth rates in older juveniles and young adults, respectively, while stimulating respiration rates. Young mysids excreted less ammonia in DEF concentrations > or = 0.085 microgram/l. Higher O:N ratios during maturation of DEF-exposed mysids suggests greater reliance on energy-rich lipid substrates to support elevated metabolic demands, leaving reduced lipid for reproductive preparations.
||Pub. in Aquatic Toxicology, v19 p123-135 1991. See also PB91-163949.
|NTIS Title Notes
||Reprint: Changes in the Physiological Performance and Energy Metabolism of an Estuarine Mysid 'Mysidopsis bahia' Exposed in the Laboratory through a Complete Life Cycle to the Defoliant DEF.
||68E; 68D; 47D; 57Z; 57Y
||PC A03/MF A01