Main Title |
Responses of Macrobenthos Colonizing Estuarine Sediments Contaminated with Drilling Mud Containing Diesel Oil. |
Author |
Tagatz, M. E. ;
Plaia, G. R. ;
Deans, C. H. ;
|
CORP Author |
Environmental Research Lab., Gulf Breeze, FL. |
Year Published |
1985 |
Report Number |
EPA/600/J-85/125; |
Stock Number |
PB86-100294 |
Additional Subjects |
Benthos ;
Diesel fuels ;
Drilling fluids ;
Water pollution ;
Santa Rosa Sound ;
Barite ;
Fuel oil ;
Mixtures ;
Calcium oxides ;
Mud ;
Sands ;
Toxicity ;
Reprints ;
Water pollution effects(Animals) ;
Species diversity
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB86-100294 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
11p |
Abstract |
Boxes filled with clean sand or clean sand with a 2-cm overlay of mixtures of sand with barite or drilling mud were placed in Santa Rosa Sound, Florida to determine the effects of a used lime drilling-mud on field-colonized macrobenthic communities. Effect of the drilling mud on community structure was greater than that of its barite component after colonization for 8 weeks. Barite causes changes in texture of the sediment and thereby recruitment. The average numbers of animals and species in boxes containing 1:10 and 1:3 mixtures of mud to sand were significantly less than those in control boxes and most of the barite/sand mixtures. The Shannon-Weaver index of diversity, Simpson's index of dominance, and the Bray-Curtis dissimilarity index differed only for 1:3 mud/sand communities. Toxic effects of the lime drilling mud were attributed to a diesel fuel oil component. |