A system for conducting flow-through toxicity tests with larval fish

1995 ◽  
Vol 14 (8) ◽  
pp. 1389-1391 ◽  
Author(s):  
Stephen A. Diamond ◽  
James T. Oris ◽  
Sheldon I. Guttman
Keyword(s):  
Larval Fish ◽  
Toxicity Tests ◽  
Flow Through

A flow-through passive dosing system for continuously supplying aqueous solutions of hydrophobic chemicals to bioconcentration and aquatic toxicity tests

Chemosphere ◽  
2012 ◽  
Vol 86 (6) ◽  
pp. 593-599 ◽  
Author(s):  
Margaretha Adolfsson-Erici ◽  
Gun Åkerman ◽  
Annika Jahnke ◽  
Philipp Mayer ◽  
Michael S. McLachlan
Keyword(s):  
Aqueous Solutions ◽  
Aquatic Toxicity ◽  
Toxicity Tests ◽  
Flow Through ◽  
Passive Dosing

Increased Toxicity of Ammonia to Rainbow Trout (Salmo gairdneri) Resulting from Reduced Concentrations of Dissolved Oxygen

1981 ◽  
Vol 38 (8) ◽  
pp. 983-988 ◽  
Author(s):  
Robert V. Thurston ◽  
Glenn R. Phillips ◽  
Rosemarie C. Russo ◽  
Susan M. Hinkins
Keyword(s):  
Rainbow Trout ◽  
Dissolved Oxygen ◽  
Ammonia Toxicity ◽  
Control Fish ◽  
Toxicity Tests ◽  
Salmo Gairdneri ◽  
Median Lethal Concentration ◽  
Positive Linear Correlation ◽  
Acute Toxicity Tests ◽  
Flow Through

The median lethal concentration (LC50) of aqueous ammonia at reduced dissolved oxygen (D.O.) concentrations was tested in acute toxicity tests with rainbow trout (Salmo gairdneri) fingerlings. Fifteen 96-h flow-through tests were conducted over the D.O. range 2.6–8.6 mg/L, the former concentration being the lowest at which control fish survived. There was a positive linear correlation between LC50 (milligrams per litre un-ionized ammonia) and D.O. over the entire D.O. range tested; ammonia toxicity increased as D.O. decreased. Ammonia LC50 values were also computed for 12, 24, 48, and 72 h; the correlation with D.O. was greater the shorter the time period.Key words: ammonia toxicity, dissolved oxygen, rainbow trout, Salmo gairdneri

Acute Toxicological Consequences of Oil Dispersal To Marine Organisms

1999 ◽  
Vol 1999 (1) ◽  
pp. 1031-1033
Author(s):  
Michael M. Singer ◽  
Susan Jacobson ◽  
Maureen Hodgins ◽  
Ronald S. Tjeerdema ◽  
Michael L. Sowby
Keyword(s):  
Early Life ◽  
Marine Species ◽  
Toxicity Tests ◽  
Life Stages ◽  
Acute Effects ◽  
Early Life Stages ◽  
Water Accommodated Fractions ◽  
Flow Through ◽  
Energy Equilibrium ◽  
Prudhoe Bay

ABSTRACT The acute effects of untreated and chemically dispersed Prudhoe Bay crude oil was investigated using modeledexposure toxicity tests. Testing was accomplished under closed, flow-through conditions using the sensitive early life-stages of two coastal California marine species. Water-accommodated fractions of untreated oil were prepared using low-energy equilibrium methods, whereas chemical dispersions were prepared at somewhat higher energies. Exposure concentrations were measured using gas chromatography. Results showed substantial differences in toxicity both among species, and between dispersed and undispersed oil.

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