Record Display for the EPA National Library Catalog

RECORD NUMBER: 45 OF 45

Main Title

Use of the Amphipod Crustacean 'Hyalella Azteca' in Freshwater and Estuarine Sediment Toxicity Tests.

Author

Nebeker, A. V. ; Miller, C. E. ;

CORP Author

Corvallis Environmental Research Lab., OR.

Publisher

1988

Year Published

1988

Report Number

EPA/600/J-88/299;

Stock Number

PB89-202337

Additional Subjects

Crustacea ; Fresh water ; Toxicity ; Sediments ; Tests ; Estuaries ; Species indicators ; Salinity ; Tolerances(Physiology) ; Survival ; Reproduction(Biology) ; Acceptability ; Comparison ; Exposure ; Concentration(Composition) ; Tables(Data) ; Reprints ; Hyalella azteca

Holdings

Library	Call Number	Additional Info	Location	Last Modified	Checkout Status
NTIS	PB89-202337	Some EPA libraries have a fiche copy filed under the call number shown.		07/26/2022

Collation

Abstract

Hyalella azteca (Saussure), which are currently used in toxicity tests with freshwater sediments, were tested to determine their suitability for tests with estuarine sediments. Reproduction was good after 24 d at and below 12.5 g/l (ppt) salinity in water only. EC50 values (50% reduction in young) were 10.5 and 10.4 g/l salinity. Survival was good in tests conducted with estuarine sediments collected from a range of freshwater to full seawater sites, using fresh water overlaying the sediments (200 ml sediment, 800 ml water). The results demonstrate that H. azteca can be used to test the toxicity of sediments from both freshwater and estuarine sites.