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Increasing benthic vent formation: a threat to Japan’s ancient lake
An autonomous underwater vehicle (AUV) was deployed in Lake Biwa from 2000 to 2012. In December 2009, ebullition of turbid water was first found in the deepest area (> 90 m) of the North Basin. Follow-up investigations in April and December 2010 and January 2012 confirmed the existence of benthic...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7892839/ https://www.ncbi.nlm.nih.gov/pubmed/33603088 http://dx.doi.org/10.1038/s41598-021-83649-4 |
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author | Kumagai, Michio Robarts, Richard D. Aota, Yasuaki |
author_facet | Kumagai, Michio Robarts, Richard D. Aota, Yasuaki |
author_sort | Kumagai, Michio |
collection | PubMed |
description | An autonomous underwater vehicle (AUV) was deployed in Lake Biwa from 2000 to 2012. In December 2009, ebullition of turbid water was first found in the deepest area (> 90 m) of the North Basin. Follow-up investigations in April and December 2010 and January 2012 confirmed the existence of benthic vents similar to the vents observed in other deep lakes. Importantly, vent numbers per unit travel distance in Lake Biwa dramatically increased from only two vents (0.37 vents km(−1)) in December 2009 to 54 vents (5.28 vents km(−1)) in January 2012, which could be related to recent tectonic activity in Japan, e.g., the M9.1 Tohoku earthquake in March 2011 and slow earthquakes along the Nankai Trough from 2006 to 2018. Continuous back-up investigations from 2014 to 2019 revealed additional benthic vents in the same area. The sudden increase in benthic vent activity (liquid and gaseous ebullitions) have significant potential to alter lake biogeochemistry and, ultimately, degrade Japan’s major drinking water source and may be a harbinger of major crustal change in the near future. |
format | Online Article Text |
id | pubmed-7892839 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-78928392021-02-23 Increasing benthic vent formation: a threat to Japan’s ancient lake Kumagai, Michio Robarts, Richard D. Aota, Yasuaki Sci Rep Article An autonomous underwater vehicle (AUV) was deployed in Lake Biwa from 2000 to 2012. In December 2009, ebullition of turbid water was first found in the deepest area (> 90 m) of the North Basin. Follow-up investigations in April and December 2010 and January 2012 confirmed the existence of benthic vents similar to the vents observed in other deep lakes. Importantly, vent numbers per unit travel distance in Lake Biwa dramatically increased from only two vents (0.37 vents km(−1)) in December 2009 to 54 vents (5.28 vents km(−1)) in January 2012, which could be related to recent tectonic activity in Japan, e.g., the M9.1 Tohoku earthquake in March 2011 and slow earthquakes along the Nankai Trough from 2006 to 2018. Continuous back-up investigations from 2014 to 2019 revealed additional benthic vents in the same area. The sudden increase in benthic vent activity (liquid and gaseous ebullitions) have significant potential to alter lake biogeochemistry and, ultimately, degrade Japan’s major drinking water source and may be a harbinger of major crustal change in the near future. Nature Publishing Group UK 2021-02-18 /pmc/articles/PMC7892839/ /pubmed/33603088 http://dx.doi.org/10.1038/s41598-021-83649-4 Text en © The Author(s) 2021 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Kumagai, Michio Robarts, Richard D. Aota, Yasuaki Increasing benthic vent formation: a threat to Japan’s ancient lake |
title | Increasing benthic vent formation: a threat to Japan’s ancient lake |
title_full | Increasing benthic vent formation: a threat to Japan’s ancient lake |
title_fullStr | Increasing benthic vent formation: a threat to Japan’s ancient lake |
title_full_unstemmed | Increasing benthic vent formation: a threat to Japan’s ancient lake |
title_short | Increasing benthic vent formation: a threat to Japan’s ancient lake |
title_sort | increasing benthic vent formation: a threat to japan’s ancient lake |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7892839/ https://www.ncbi.nlm.nih.gov/pubmed/33603088 http://dx.doi.org/10.1038/s41598-021-83649-4 |
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