Nitrogen Fixation and the Utilization of Other Inorganic Nitrogen Sources in a Subarctic Lake
A year-round limnological study of the biological utilization of molecular nitrogen, ammonia, and nitrate in Smith Lake, a small subarctic lake in interior Alaska, showed that ammonia was consistently the most important nitrogen source. Of the two main algal production periods, the first took place...
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Canadian Science Publishing
1968
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crcansciencepubl:10.1139/f68-187 2023-12-17T10:50:45+01:00 Nitrogen Fixation and the Utilization of Other Inorganic Nitrogen Sources in a Subarctic Lake Billaud, Vera A. 1968 http://dx.doi.org/10.1139/f68-187 http://www.nrcresearchpress.com/doi/pdf/10.1139/f68-187 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Journal of the Fisheries Research Board of Canada volume 25, issue 10, page 2101-2110 ISSN 0015-296X General Medicine journal-article 1968 crcansciencepubl https://doi.org/10.1139/f68-187 2023-11-19T13:38:21Z A year-round limnological study of the biological utilization of molecular nitrogen, ammonia, and nitrate in Smith Lake, a small subarctic lake in interior Alaska, showed that ammonia was consistently the most important nitrogen source. Of the two main algal production periods, the first took place under the ice in May, and depended on ammonia accumulated during the winter for a nitrogen source. The population at this time consisted largely of microflagellates. Chlamydomonas, Euglena, Chlorella, and Mellamonas were among the identified algae present. Immediately after the ice melted from the lake surface, a second population developed. These algae, consisting almost exclusively of Anabaena flos-aquae, used ammonia, nitrate, and molecular nitrogen simultaneously. During the remainder of the summer, uptake rates remained relatively low, with ammonia the most important nitrogen source; during the fall, nitrate uptake briefly approached the magnitude of ammonia uptake. 15 N tracer methods were used to measure the uptake rates in this work. Article in Journal/Newspaper Subarctic Alaska Canadian Science Publishing (via Crossref) Smith Lake ENVELOPE(101.283,101.283,-66.117,-66.117) Journal of the Fisheries Research Board of Canada 25 10 2101 2110 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
General Medicine |
spellingShingle |
General Medicine Billaud, Vera A. Nitrogen Fixation and the Utilization of Other Inorganic Nitrogen Sources in a Subarctic Lake |
topic_facet |
General Medicine |
description |
A year-round limnological study of the biological utilization of molecular nitrogen, ammonia, and nitrate in Smith Lake, a small subarctic lake in interior Alaska, showed that ammonia was consistently the most important nitrogen source. Of the two main algal production periods, the first took place under the ice in May, and depended on ammonia accumulated during the winter for a nitrogen source. The population at this time consisted largely of microflagellates. Chlamydomonas, Euglena, Chlorella, and Mellamonas were among the identified algae present. Immediately after the ice melted from the lake surface, a second population developed. These algae, consisting almost exclusively of Anabaena flos-aquae, used ammonia, nitrate, and molecular nitrogen simultaneously. During the remainder of the summer, uptake rates remained relatively low, with ammonia the most important nitrogen source; during the fall, nitrate uptake briefly approached the magnitude of ammonia uptake. 15 N tracer methods were used to measure the uptake rates in this work. |
format |
Article in Journal/Newspaper |
author |
Billaud, Vera A. |
author_facet |
Billaud, Vera A. |
author_sort |
Billaud, Vera A. |
title |
Nitrogen Fixation and the Utilization of Other Inorganic Nitrogen Sources in a Subarctic Lake |
title_short |
Nitrogen Fixation and the Utilization of Other Inorganic Nitrogen Sources in a Subarctic Lake |
title_full |
Nitrogen Fixation and the Utilization of Other Inorganic Nitrogen Sources in a Subarctic Lake |
title_fullStr |
Nitrogen Fixation and the Utilization of Other Inorganic Nitrogen Sources in a Subarctic Lake |
title_full_unstemmed |
Nitrogen Fixation and the Utilization of Other Inorganic Nitrogen Sources in a Subarctic Lake |
title_sort |
nitrogen fixation and the utilization of other inorganic nitrogen sources in a subarctic lake |
publisher |
Canadian Science Publishing |
publishDate |
1968 |
url |
http://dx.doi.org/10.1139/f68-187 http://www.nrcresearchpress.com/doi/pdf/10.1139/f68-187 |
long_lat |
ENVELOPE(101.283,101.283,-66.117,-66.117) |
geographic |
Smith Lake |
geographic_facet |
Smith Lake |
genre |
Subarctic Alaska |
genre_facet |
Subarctic Alaska |
op_source |
Journal of the Fisheries Research Board of Canada volume 25, issue 10, page 2101-2110 ISSN 0015-296X |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f68-187 |
container_title |
Journal of the Fisheries Research Board of Canada |
container_volume |
25 |
container_issue |
10 |
container_start_page |
2101 |
op_container_end_page |
2110 |
_version_ |
1785575810442199040 |