Distribution of Hydrocarbons and Microbial Populations Related to Sedimentation Processes in Lower Cook Inlet and Norton Sound, Alaska
In spring and summer 1978 and spring 1979 an integrated study was carried out to examine the interrelationships of physical (sediment deposition), chemical (organic carbon and hydrocarbon concentrations), and biological (microbial populations and activities) factors in the Cook Inlet and Norton Soun...
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The Arctic Institute of North America
1983
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ftunivcalgaryojs:oai:journalhosting.ucalgary.ca:article/65326 2023-05-15T14:19:16+02:00 Distribution of Hydrocarbons and Microbial Populations Related to Sedimentation Processes in Lower Cook Inlet and Norton Sound, Alaska Atlas, Ronald M. Venkatesan, Mahalakshmi I. Kaplan, Issac R. Feely, Richard A. Griffiths, Robert P. Morita, Richard Y. 1983-01-01 application/pdf https://journalhosting.ucalgary.ca/index.php/arctic/article/view/65326 eng eng The Arctic Institute of North America https://journalhosting.ucalgary.ca/index.php/arctic/article/view/65326/49240 https://journalhosting.ucalgary.ca/index.php/arctic/article/view/65326 ARCTIC; Vol. 36 No. 3 (1983): September: 227–310; 251-261 1923-1245 0004-0843 Biodegradation Bottom sediments Composition Environmental impacts Hydrocarbons Microbial ecology River discharges Sedimentation Marine pollution Bering Sea Cook Inlet Alaska Norton Sound info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion research-article 1983 ftunivcalgaryojs 2022-03-22T21:22:25Z In spring and summer 1978 and spring 1979 an integrated study was carried out to examine the interrelationships of physical (sediment deposition), chemical (organic carbon and hydrocarbon concentrations), and biological (microbial populations and activities) factors in the Cook Inlet and Norton Sound regions with respect to the probable sinks and fates of hydrocarbon contaminants within these ecosystems. Most of the fine-grained sediment entering Cook Inlet is transported out of the inlet into Shelikof Strait. However, significant sediment accumulation occurs within areas of Kamishak and Kachemak bays. In Norton Sound, sediment from the Yukon River is transported counterclockwise around the embayment and approximately 50% is deposited in the nearshore regions of the sound. In both regions, areas of high sediment accumulation are richer in organic carbon and hydrocarbon derived from land than are areas of low sediment accumulation. In general, areas with high sediment accumulation rates for fine-grained particles are also areas of relatively high microbial activity. Results suggest that these elevated microbial activities reflect biodegradation of detrital carbon associated with these particles. Also, the Cook Inlet and Norton Sound region were found to be free from petroleum hydrocarbon contamination (with the exception of one area in Cook Inlet). No evidence was found of hydrocarbon accumulation resulting from a gas seepage in Norton Sound, nor for accumulation of hydrocarbons in sediments of lower Cook Inlet and Shelikof Strait from oil well operations in upper Cook Inlet.Key words: arctic marine ecosystems, sedimentation, microorganism, hydrocarbons, lower Cook Inlet, Norton Sound Mots clés: écosystèmes marins arctiques, sédimentation, micro-organismes, hydrocarbons, sud de l'inlet Cook, bras de mer Norton Article in Journal/Newspaper Arctic Arctic Arctique* Bering Sea Kachemak Yukon river Alaska Yukon University of Calgary Journal Hosting Arctic Yukon Bering Sea Norton Sound ENVELOPE(69.507,69.507,-49.202,-49.202) ARCTIC 36 3 |
institution |
Open Polar |
collection |
University of Calgary Journal Hosting |
op_collection_id |
ftunivcalgaryojs |
language |
English |
topic |
Biodegradation Bottom sediments Composition Environmental impacts Hydrocarbons Microbial ecology River discharges Sedimentation Marine pollution Bering Sea Cook Inlet Alaska Norton Sound |
spellingShingle |
Biodegradation Bottom sediments Composition Environmental impacts Hydrocarbons Microbial ecology River discharges Sedimentation Marine pollution Bering Sea Cook Inlet Alaska Norton Sound Atlas, Ronald M. Venkatesan, Mahalakshmi I. Kaplan, Issac R. Feely, Richard A. Griffiths, Robert P. Morita, Richard Y. Distribution of Hydrocarbons and Microbial Populations Related to Sedimentation Processes in Lower Cook Inlet and Norton Sound, Alaska |
topic_facet |
Biodegradation Bottom sediments Composition Environmental impacts Hydrocarbons Microbial ecology River discharges Sedimentation Marine pollution Bering Sea Cook Inlet Alaska Norton Sound |
description |
In spring and summer 1978 and spring 1979 an integrated study was carried out to examine the interrelationships of physical (sediment deposition), chemical (organic carbon and hydrocarbon concentrations), and biological (microbial populations and activities) factors in the Cook Inlet and Norton Sound regions with respect to the probable sinks and fates of hydrocarbon contaminants within these ecosystems. Most of the fine-grained sediment entering Cook Inlet is transported out of the inlet into Shelikof Strait. However, significant sediment accumulation occurs within areas of Kamishak and Kachemak bays. In Norton Sound, sediment from the Yukon River is transported counterclockwise around the embayment and approximately 50% is deposited in the nearshore regions of the sound. In both regions, areas of high sediment accumulation are richer in organic carbon and hydrocarbon derived from land than are areas of low sediment accumulation. In general, areas with high sediment accumulation rates for fine-grained particles are also areas of relatively high microbial activity. Results suggest that these elevated microbial activities reflect biodegradation of detrital carbon associated with these particles. Also, the Cook Inlet and Norton Sound region were found to be free from petroleum hydrocarbon contamination (with the exception of one area in Cook Inlet). No evidence was found of hydrocarbon accumulation resulting from a gas seepage in Norton Sound, nor for accumulation of hydrocarbons in sediments of lower Cook Inlet and Shelikof Strait from oil well operations in upper Cook Inlet.Key words: arctic marine ecosystems, sedimentation, microorganism, hydrocarbons, lower Cook Inlet, Norton Sound Mots clés: écosystèmes marins arctiques, sédimentation, micro-organismes, hydrocarbons, sud de l'inlet Cook, bras de mer Norton |
format |
Article in Journal/Newspaper |
author |
Atlas, Ronald M. Venkatesan, Mahalakshmi I. Kaplan, Issac R. Feely, Richard A. Griffiths, Robert P. Morita, Richard Y. |
author_facet |
Atlas, Ronald M. Venkatesan, Mahalakshmi I. Kaplan, Issac R. Feely, Richard A. Griffiths, Robert P. Morita, Richard Y. |
author_sort |
Atlas, Ronald M. |
title |
Distribution of Hydrocarbons and Microbial Populations Related to Sedimentation Processes in Lower Cook Inlet and Norton Sound, Alaska |
title_short |
Distribution of Hydrocarbons and Microbial Populations Related to Sedimentation Processes in Lower Cook Inlet and Norton Sound, Alaska |
title_full |
Distribution of Hydrocarbons and Microbial Populations Related to Sedimentation Processes in Lower Cook Inlet and Norton Sound, Alaska |
title_fullStr |
Distribution of Hydrocarbons and Microbial Populations Related to Sedimentation Processes in Lower Cook Inlet and Norton Sound, Alaska |
title_full_unstemmed |
Distribution of Hydrocarbons and Microbial Populations Related to Sedimentation Processes in Lower Cook Inlet and Norton Sound, Alaska |
title_sort |
distribution of hydrocarbons and microbial populations related to sedimentation processes in lower cook inlet and norton sound, alaska |
publisher |
The Arctic Institute of North America |
publishDate |
1983 |
url |
https://journalhosting.ucalgary.ca/index.php/arctic/article/view/65326 |
long_lat |
ENVELOPE(69.507,69.507,-49.202,-49.202) |
geographic |
Arctic Yukon Bering Sea Norton Sound |
geographic_facet |
Arctic Yukon Bering Sea Norton Sound |
genre |
Arctic Arctic Arctique* Bering Sea Kachemak Yukon river Alaska Yukon |
genre_facet |
Arctic Arctic Arctique* Bering Sea Kachemak Yukon river Alaska Yukon |
op_source |
ARCTIC; Vol. 36 No. 3 (1983): September: 227–310; 251-261 1923-1245 0004-0843 |
op_relation |
https://journalhosting.ucalgary.ca/index.php/arctic/article/view/65326/49240 https://journalhosting.ucalgary.ca/index.php/arctic/article/view/65326 |
container_title |
ARCTIC |
container_volume |
36 |
container_issue |
3 |
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1766290901531885568 |