Field investigation on the toxicity of Alaska North Slope crude oil (ANSC) and dispersed ANSC crude to Gulf killifish, Eastern oyster and white shrimp

A field investigation was conducted on a Louisiana Spartina alterniflora shoreline to evaluate the toxic effects of crude oil (Alaska North Slope crude oil, ANSC) and dispersed oil (ANSC + dispersant Corexit 9500) on three aquatic species indigenous to the Gulf of Mexico: Fundulus grandis (Gulf kill...

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Bibliographic Details
Published in:Chemosphere (Oxford) 2006, Vol.62 (4), p.520-526
Main Authors: Liu, B., Romaire, R.P., Delaune, R.D., Lindau, C.W.
Format: Article
Language:English
Subjects:
Animal, plant and microbial ecology
Animals
Applied ecology
Biological and medical sciences
Crassostrea
Crassostrea - drug effects
Crassostrea virginica
Crustacea
Decapoda
Dispersant
Ecotoxicology, biological effects of pollution
Fundamental and applied biological sciences. Psychology
Fundulidae
Fundulus
Fundulus grandis
General aspects
Hydrocarbons - analysis
Invertebrates
Lethal Dose 50
Lipids - pharmacology
Litopenaeus
Litopenaeus setiferus
Louisiana
Marine
Oil
Penaeidae - drug effects
Petroleum - toxicity
Spartina alterniflora
Surface-Active Agents - pharmacology
Toxicity
Toxicity Tests, Acute
Water Pollutants, Chemical - toxicity
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Summary:A field investigation was conducted on a Louisiana Spartina alterniflora shoreline to evaluate the toxic effects of crude oil (Alaska North Slope crude oil, ANSC) and dispersed oil (ANSC + dispersant Corexit 9500) on three aquatic species indigenous to the Gulf of Mexico: Fundulus grandis (Gulf killifish), Crassostrea virginica (Eastern oyster), and Litopenaeus setiferus (white shrimp). Results indicated that total hydrocarbons concentration value in oiled treatments decreased rapidly in 3 h and were below 1 ppm at 24 h after initial treatment. Corexit 9500 facilitated more ANSC fractions to dissolve and disperse into the water column. L. setiferus showed short-term sensitivity to the ANSC and ANSC + 9500 at 30 ppm. However, most test organisms (>83%) of each species survived well after 24 h exposure to the treatments. Laboratory tests conducted concurrent with the field investigation indicated that concentrations of crude oil higher than 30 ppm were required for any significant toxic effect on the juvenile organisms tested.
ISSN:0045-6535
1879-1298
DOI:10.1016/j.chemosphere.2005.06.054