Transformation of a Tundra River from Heterotrophy to Autotrophy by Addition of Phosphorus
Continuous enrichment of an arctic river with only 10 parts per billion phosphate-phosphorus caused an immediate growth of attached algae for more than 10 kilometers downstream, showing that phosphorus alone limited photosynthesis. As a result of the increased photosynthesis, there was an increase i...
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American Association for the Advancement of Science (AAAS)
1985
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Online Access: | http://dx.doi.org/10.1126/science.229.4720.1383 https://www.science.org/doi/pdf/10.1126/science.229.4720.1383 |
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craaas:10.1126/science.229.4720.1383 2024-09-15T18:39:39+00:00 Transformation of a Tundra River from Heterotrophy to Autotrophy by Addition of Phosphorus Peterson, Bruce J. Hobbie, John E. Hershey, Anne E. Lock, Maurice A. Ford, Tim E. Vestal, J. Robie McKinley, Vicky L. Hullar, Meredith A. J. Miller, Michael C. Ventullo, Roy M. Volk, Gregg S. 1985 http://dx.doi.org/10.1126/science.229.4720.1383 https://www.science.org/doi/pdf/10.1126/science.229.4720.1383 en eng American Association for the Advancement of Science (AAAS) Science volume 229, issue 4720, page 1383-1386 ISSN 0036-8075 1095-9203 journal-article 1985 craaas https://doi.org/10.1126/science.229.4720.1383 2024-08-08T04:01:23Z Continuous enrichment of an arctic river with only 10 parts per billion phosphate-phosphorus caused an immediate growth of attached algae for more than 10 kilometers downstream, showing that phosphorus alone limited photosynthesis. As a result of the increased photosynthesis, there was an increase in bacterial activity in films on rocks on the bottom of the stream. The major source of energy became the photosynthetic carbon fixed in the stream rather than the organic material entering from the surrounding tundra, and the overall metabolism of the stream shifted from heterotrophy to autotrophy. An increase in the size and developmental stage of some of the dominant aquatic insects illustrates the food limitation in this nutrient-poor habitat. Article in Journal/Newspaper Tundra AAAS Resource Center (American Association for the Advancement of Science) Science 229 4720 1383 1386 |
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Open Polar |
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AAAS Resource Center (American Association for the Advancement of Science) |
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craaas |
language |
English |
description |
Continuous enrichment of an arctic river with only 10 parts per billion phosphate-phosphorus caused an immediate growth of attached algae for more than 10 kilometers downstream, showing that phosphorus alone limited photosynthesis. As a result of the increased photosynthesis, there was an increase in bacterial activity in films on rocks on the bottom of the stream. The major source of energy became the photosynthetic carbon fixed in the stream rather than the organic material entering from the surrounding tundra, and the overall metabolism of the stream shifted from heterotrophy to autotrophy. An increase in the size and developmental stage of some of the dominant aquatic insects illustrates the food limitation in this nutrient-poor habitat. |
format |
Article in Journal/Newspaper |
author |
Peterson, Bruce J. Hobbie, John E. Hershey, Anne E. Lock, Maurice A. Ford, Tim E. Vestal, J. Robie McKinley, Vicky L. Hullar, Meredith A. J. Miller, Michael C. Ventullo, Roy M. Volk, Gregg S. |
spellingShingle |
Peterson, Bruce J. Hobbie, John E. Hershey, Anne E. Lock, Maurice A. Ford, Tim E. Vestal, J. Robie McKinley, Vicky L. Hullar, Meredith A. J. Miller, Michael C. Ventullo, Roy M. Volk, Gregg S. Transformation of a Tundra River from Heterotrophy to Autotrophy by Addition of Phosphorus |
author_facet |
Peterson, Bruce J. Hobbie, John E. Hershey, Anne E. Lock, Maurice A. Ford, Tim E. Vestal, J. Robie McKinley, Vicky L. Hullar, Meredith A. J. Miller, Michael C. Ventullo, Roy M. Volk, Gregg S. |
author_sort |
Peterson, Bruce J. |
title |
Transformation of a Tundra River from Heterotrophy to Autotrophy by Addition of Phosphorus |
title_short |
Transformation of a Tundra River from Heterotrophy to Autotrophy by Addition of Phosphorus |
title_full |
Transformation of a Tundra River from Heterotrophy to Autotrophy by Addition of Phosphorus |
title_fullStr |
Transformation of a Tundra River from Heterotrophy to Autotrophy by Addition of Phosphorus |
title_full_unstemmed |
Transformation of a Tundra River from Heterotrophy to Autotrophy by Addition of Phosphorus |
title_sort |
transformation of a tundra river from heterotrophy to autotrophy by addition of phosphorus |
publisher |
American Association for the Advancement of Science (AAAS) |
publishDate |
1985 |
url |
http://dx.doi.org/10.1126/science.229.4720.1383 https://www.science.org/doi/pdf/10.1126/science.229.4720.1383 |
genre |
Tundra |
genre_facet |
Tundra |
op_source |
Science volume 229, issue 4720, page 1383-1386 ISSN 0036-8075 1095-9203 |
op_doi |
https://doi.org/10.1126/science.229.4720.1383 |
container_title |
Science |
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229 |
container_issue |
4720 |
container_start_page |
1383 |
op_container_end_page |
1386 |
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1810484005754109952 |