The Effects of Oil Spills on Phytoplankton in an Arctic Lake and Ponds
The effect of oil spilled on Alaskan freshwater phytoplankton populations was studied in waters affected by natural oil seeps, by controlled crude oil spills in tundra thaw ponds and in a morainal lake, by subpond manipulations and bioassay experiments. The studies were carried out over a period of...
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The Arctic Institute of North America
1978
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ftunivcalgaryojs:oai:journalhosting.ucalgary.ca:article/65705 2023-05-15T14:19:18+02:00 The Effects of Oil Spills on Phytoplankton in an Arctic Lake and Ponds Miller, Michael C. Alexander, Vera Barsdate, Robert J. 1978-01-01 application/pdf https://journalhosting.ucalgary.ca/index.php/arctic/article/view/65705 eng eng The Arctic Institute of North America https://journalhosting.ucalgary.ca/index.php/arctic/article/view/65705/49619 https://journalhosting.ucalgary.ca/index.php/arctic/article/view/65705 ARCTIC; Vol. 31 No. 3 (1978): September: 153–411; 192-218 1923-1245 0004-0843 Composition Environmental impacts Fresh-water fauna Lakes Oil seeps Oil spills on lakes Phytoplankton Primary production (Biology) Tundra ponds Zooplankton Biomass Barrow region Alaska info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion research-article 1978 ftunivcalgaryojs 2022-03-22T21:22:45Z The effect of oil spilled on Alaskan freshwater phytoplankton populations was studied in waters affected by natural oil seeps, by controlled crude oil spills in tundra thaw ponds and in a morainal lake, by subpond manipulations and bioassay experiments. The studies were carried out over a period of seven years. Regardless of dose the effects of oil were predictable in the small ponds. The zooplankton populations were virtually eliminated, and after an initial depression of primary productivity the photosynthetic rates returned to approximately prespill levels with a small increase in algal biomass. A markedly altered algal composition was an invariable effect of the response, with the elimination of a dominant flagellated form, Rhodomonas spp., in the case of the ponds. From the results of subpond manipulation experiments, evidence supports the hypothesis that elimination of grazers is the principal cause of altered species composition and increased biomass in these ponds. In our lake system there was a severe reduction in primary production during the season of the experimental spill. During the second year only the spring boom was suppressed by the added oil. Bioassay experiments supported the hypothesis that in such lakes, direct inhibition of algal photosynthesis may be important, although zooplankton were greatly reduced. Article in Journal/Newspaper Arctic Arctic Barrow Phytoplankton Tundra Zooplankton Alaska University of Calgary Journal Hosting Arctic Arctic Lake ENVELOPE(-130.826,-130.826,57.231,57.231) ARCTIC 31 3 |
institution |
Open Polar |
collection |
University of Calgary Journal Hosting |
op_collection_id |
ftunivcalgaryojs |
language |
English |
topic |
Composition Environmental impacts Fresh-water fauna Lakes Oil seeps Oil spills on lakes Phytoplankton Primary production (Biology) Tundra ponds Zooplankton Biomass Barrow region Alaska |
spellingShingle |
Composition Environmental impacts Fresh-water fauna Lakes Oil seeps Oil spills on lakes Phytoplankton Primary production (Biology) Tundra ponds Zooplankton Biomass Barrow region Alaska Miller, Michael C. Alexander, Vera Barsdate, Robert J. The Effects of Oil Spills on Phytoplankton in an Arctic Lake and Ponds |
topic_facet |
Composition Environmental impacts Fresh-water fauna Lakes Oil seeps Oil spills on lakes Phytoplankton Primary production (Biology) Tundra ponds Zooplankton Biomass Barrow region Alaska |
description |
The effect of oil spilled on Alaskan freshwater phytoplankton populations was studied in waters affected by natural oil seeps, by controlled crude oil spills in tundra thaw ponds and in a morainal lake, by subpond manipulations and bioassay experiments. The studies were carried out over a period of seven years. Regardless of dose the effects of oil were predictable in the small ponds. The zooplankton populations were virtually eliminated, and after an initial depression of primary productivity the photosynthetic rates returned to approximately prespill levels with a small increase in algal biomass. A markedly altered algal composition was an invariable effect of the response, with the elimination of a dominant flagellated form, Rhodomonas spp., in the case of the ponds. From the results of subpond manipulation experiments, evidence supports the hypothesis that elimination of grazers is the principal cause of altered species composition and increased biomass in these ponds. In our lake system there was a severe reduction in primary production during the season of the experimental spill. During the second year only the spring boom was suppressed by the added oil. Bioassay experiments supported the hypothesis that in such lakes, direct inhibition of algal photosynthesis may be important, although zooplankton were greatly reduced. |
format |
Article in Journal/Newspaper |
author |
Miller, Michael C. Alexander, Vera Barsdate, Robert J. |
author_facet |
Miller, Michael C. Alexander, Vera Barsdate, Robert J. |
author_sort |
Miller, Michael C. |
title |
The Effects of Oil Spills on Phytoplankton in an Arctic Lake and Ponds |
title_short |
The Effects of Oil Spills on Phytoplankton in an Arctic Lake and Ponds |
title_full |
The Effects of Oil Spills on Phytoplankton in an Arctic Lake and Ponds |
title_fullStr |
The Effects of Oil Spills on Phytoplankton in an Arctic Lake and Ponds |
title_full_unstemmed |
The Effects of Oil Spills on Phytoplankton in an Arctic Lake and Ponds |
title_sort |
effects of oil spills on phytoplankton in an arctic lake and ponds |
publisher |
The Arctic Institute of North America |
publishDate |
1978 |
url |
https://journalhosting.ucalgary.ca/index.php/arctic/article/view/65705 |
long_lat |
ENVELOPE(-130.826,-130.826,57.231,57.231) |
geographic |
Arctic Arctic Lake |
geographic_facet |
Arctic Arctic Lake |
genre |
Arctic Arctic Barrow Phytoplankton Tundra Zooplankton Alaska |
genre_facet |
Arctic Arctic Barrow Phytoplankton Tundra Zooplankton Alaska |
op_source |
ARCTIC; Vol. 31 No. 3 (1978): September: 153–411; 192-218 1923-1245 0004-0843 |
op_relation |
https://journalhosting.ucalgary.ca/index.php/arctic/article/view/65705/49619 https://journalhosting.ucalgary.ca/index.php/arctic/article/view/65705 |
container_title |
ARCTIC |
container_volume |
31 |
container_issue |
3 |
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1766290960558325760 |