Main Title |
Pollutant Dynamics as Influenced by Seagrass Beds: Experiments with Tributyltin in 'Thalassia' Microcosms. |
Author |
Levine, S. N. ;
Rudnick, D. T. ;
Kelly, J. R. ;
Morton, R. D. ;
Buttel, L. A. ;
|
CORP Author |
Cornell Univ., Ithaca, NY. Ecosystems Research Center. ;University of West Florida, Pensacola.;Environmental Research Lab., Gulf Breeze, FL. |
Publisher |
c1990 |
Year Published |
1990 |
Report Number |
EPA/600/J-90/516; |
Stock Number |
PB91-206888 |
Additional Subjects |
Tributyltin ;
Water pollution effects(Plants) ;
Seagrasses ;
Marine biology ;
Aquatic ecosystems ;
Toxic substances ;
Food chains ;
Sediments ;
Carbon 14 ;
Reprints ;
Thalassia testudinum
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB91-206888 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
28p |
Abstract |
Partitioning, degradation, and bioaccumulation of the potent biocide tributyltin (TBT) was measured in marine microcosms that included sediment cores from a subtropical seagrass bed (with Thalassia testudinum and associated fauna). Over 3 or 6 weeks, 48 microcosms were dosed with (14)C-labelled TBT, and flushed with flowing seawater between doses. TBT was rapidly removed from the water column, with half times of only 10-20 h. Adsorption onto sediments and grasses was temporary; however, at harvest, the seagrass microcosms contained just 15-20% of the (14)C that was added, and half of this label was in degradation products. The initial attraction between TBT and seagrasses and sediments provided a means for TBT concentration that lead to its accumulation in Fauna; at harvest, 2-6% of the (14)C in microcosms was in animals. Thus, TBT must continue to be viewed as a hazardous compound, and seagrass beds should be considered vectors for distribution of TBT through coastal food chains. |
Supplementary Notes |
Pub. in Marine Environmental Research 30, p297-322 1990. Prepared in cooperation with University of West Florida, Pensacola. Sponsored by Environmental Research Lab., Gulf Breeze, FL. |
NTIS Title Notes |
Journal article. |
Title Annotations |
Reprint: Pollutant Dynamics as Influenced by Seagrass Beds: Experiments with Tributyltin in 'Thalassia' Microcosms. |
Category Codes |
68D; 47D |
NTIS Prices |
PC A03/MF A01 |
Primary Description |
600/04 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
124123199 |
Origin |
NTIS |
Type |
CAT |