Effect of nutrient enrichments on the bacterial assemblage of Antarctic soils contaminated by diesel or crude oil
There is an urgent need to develop new technologies to address the problem of soil remediation in high-latitude regions. A field study was initiated in January 1997 in two contaminated soils in Terre Adélie (Antarctica) with the objective of determining the long-term effectiveness of two bioremediat...
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crcambridgeupr:10.1017/s0032247402002863 2024-03-03T08:37:26+00:00 Effect of nutrient enrichments on the bacterial assemblage of Antarctic soils contaminated by diesel or crude oil Delille, D. Pelletier, E. Delille, B. Coulon, F. 2003 http://dx.doi.org/10.1017/s0032247402002863 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0032247402002863 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Polar Record volume 39, issue 4, page 309-318 ISSN 0032-2474 1475-3057 General Earth and Planetary Sciences Ecology Geography, Planning and Development journal-article 2003 crcambridgeupr https://doi.org/10.1017/s0032247402002863 2024-02-08T08:30:49Z There is an urgent need to develop new technologies to address the problem of soil remediation in high-latitude regions. A field study was initiated in January 1997 in two contaminated soils in Terre Adélie (Antarctica) with the objective of determining the long-term effectiveness of two bioremediation agents on total and hydrocarbon-degrading microbial assemblages under severe Antarctic conditions. This study was conducted in two steps, from January to July 1997 and from February to November 1999 in the Géologie Archipelago (Terre Adélie, 66°40′S, 140°01′E). Changes in bacterial communities were monitored in situ after crude oil or diesel addition in a series of 600 cm 2 soil sectors (20×30 cm). Four contaminated sectors were used for each experiment: diesel oil (10 ml), diesel oil (10 ml) + fertilizer (1 ml), Arabian light crude oil (10 ml), and crude oil (10 ml) + fertilizer (1 ml). Two different bioremediation agents were used: a slow release fertilizer Inipol EAP-22 (Elf Atochem) in 1997 and a fish compost in 1999. Plots were sampled on a regular basis during a three-year period. All samples were analysed for total, saprophytic psychrophilic, and hydrocarbon-utilising bacteria. A one order of magnitude increase of saprophytic and hydrocarbon-utilising micro-organisms occurred during the first month of the experiment in most of the contaminated enclosures, but no clear differences appeared between fertilized and unfertilized plots. Diesel-oil contamination induced a significant increase of all bacterial parameters in all contaminated soils. Crude-oil contamination had no clear effects on microbial assemblages. It was clear that the microbial response could be rapid and efficient in spite of the severe weather conditions. However, microbial growth was not clearly improved in the presence of bioremediation agents. Article in Journal/Newspaper Antarc* Antarctic Antarctica Polar Record Cambridge University Press Antarctic Terre Adélie ENVELOPE(139.000,139.000,-67.000,-67.000) Terre-Adélie ENVELOPE(138.991,138.991,-59.999,-59.999) Polar Record 39 4 309 318 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
General Earth and Planetary Sciences Ecology Geography, Planning and Development |
spellingShingle |
General Earth and Planetary Sciences Ecology Geography, Planning and Development Delille, D. Pelletier, E. Delille, B. Coulon, F. Effect of nutrient enrichments on the bacterial assemblage of Antarctic soils contaminated by diesel or crude oil |
topic_facet |
General Earth and Planetary Sciences Ecology Geography, Planning and Development |
description |
There is an urgent need to develop new technologies to address the problem of soil remediation in high-latitude regions. A field study was initiated in January 1997 in two contaminated soils in Terre Adélie (Antarctica) with the objective of determining the long-term effectiveness of two bioremediation agents on total and hydrocarbon-degrading microbial assemblages under severe Antarctic conditions. This study was conducted in two steps, from January to July 1997 and from February to November 1999 in the Géologie Archipelago (Terre Adélie, 66°40′S, 140°01′E). Changes in bacterial communities were monitored in situ after crude oil or diesel addition in a series of 600 cm 2 soil sectors (20×30 cm). Four contaminated sectors were used for each experiment: diesel oil (10 ml), diesel oil (10 ml) + fertilizer (1 ml), Arabian light crude oil (10 ml), and crude oil (10 ml) + fertilizer (1 ml). Two different bioremediation agents were used: a slow release fertilizer Inipol EAP-22 (Elf Atochem) in 1997 and a fish compost in 1999. Plots were sampled on a regular basis during a three-year period. All samples were analysed for total, saprophytic psychrophilic, and hydrocarbon-utilising bacteria. A one order of magnitude increase of saprophytic and hydrocarbon-utilising micro-organisms occurred during the first month of the experiment in most of the contaminated enclosures, but no clear differences appeared between fertilized and unfertilized plots. Diesel-oil contamination induced a significant increase of all bacterial parameters in all contaminated soils. Crude-oil contamination had no clear effects on microbial assemblages. It was clear that the microbial response could be rapid and efficient in spite of the severe weather conditions. However, microbial growth was not clearly improved in the presence of bioremediation agents. |
format |
Article in Journal/Newspaper |
author |
Delille, D. Pelletier, E. Delille, B. Coulon, F. |
author_facet |
Delille, D. Pelletier, E. Delille, B. Coulon, F. |
author_sort |
Delille, D. |
title |
Effect of nutrient enrichments on the bacterial assemblage of Antarctic soils contaminated by diesel or crude oil |
title_short |
Effect of nutrient enrichments on the bacterial assemblage of Antarctic soils contaminated by diesel or crude oil |
title_full |
Effect of nutrient enrichments on the bacterial assemblage of Antarctic soils contaminated by diesel or crude oil |
title_fullStr |
Effect of nutrient enrichments on the bacterial assemblage of Antarctic soils contaminated by diesel or crude oil |
title_full_unstemmed |
Effect of nutrient enrichments on the bacterial assemblage of Antarctic soils contaminated by diesel or crude oil |
title_sort |
effect of nutrient enrichments on the bacterial assemblage of antarctic soils contaminated by diesel or crude oil |
publisher |
Cambridge University Press (CUP) |
publishDate |
2003 |
url |
http://dx.doi.org/10.1017/s0032247402002863 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0032247402002863 |
long_lat |
ENVELOPE(139.000,139.000,-67.000,-67.000) ENVELOPE(138.991,138.991,-59.999,-59.999) |
geographic |
Antarctic Terre Adélie Terre-Adélie |
geographic_facet |
Antarctic Terre Adélie Terre-Adélie |
genre |
Antarc* Antarctic Antarctica Polar Record |
genre_facet |
Antarc* Antarctic Antarctica Polar Record |
op_source |
Polar Record volume 39, issue 4, page 309-318 ISSN 0032-2474 1475-3057 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0032247402002863 |
container_title |
Polar Record |
container_volume |
39 |
container_issue |
4 |
container_start_page |
309 |
op_container_end_page |
318 |
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1792498825001172992 |