DISTRIBUTION OF HYDROCARBON-DEGRADING MICROORGANISMS IN SEDIMENTS FROM PRINCE-WILLIAM-SOUND, ALASKA, FOLLOWING THE EXXON-VALDEZ OIL-SPILL

被引：48

作者：

BRADDOCK, JF ^{[1
]}

LINDSTROM, JE ^{[1
]}

BROWN, EJ ^{[1
]}

机构：

[1] UNIV NO IOWA, DEPT BIOL, CEDAR FALLS, IA 50614 USA

来源：

MARINE POLLUTION BULLETIN | 1995年 / 30卷 / 02期

基金：

美国海洋和大气管理局;

关键词：

D O I：

10.1016/0025-326X(94)00110-U

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Biodegradation by naturally occurring populations of microorganisms is a major mechanism for the removal of petroleum from the environment. Therefore, measurements of microbial populations are an important component of contaminated site assessment studies. Over a 3 year period following the TN Exxon Valdez oil spill in Prince William Sound, Alaska, we counted numbers of hydrocarbon-degrading microorganisms in intertidal and subtidal. sediments affected by the spill. We found significantly higher numbers of hydrocarbon-degrading microorganisms at sites within the path of the oil slick than at reference sites, indicating rapid acclimation of the resident microbial populations. In offshore surface sediments, we saw a temporal increase in numbers of hydrocarbon-degrading microorganisms. Our data suggest that microbial measurements are good indicators of exposure of sediments in Prince William Sound to hydrocarbons and of mobilization of oil to surface sediments offshore over time.

引用

页码：125 / 132

页数：8

共 23 条

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