Ocean acidification trend in the tropical North Pacific since the mid-20th century reconstructed from a coral archive
Ocean acidification caused by anthropogenically elevated CO2 concentration in the atmosphere can pose a critical threat to calcifying marine organisms and coral reef ecosystems. However, because of temporally and spatially limited instrumental pH records, little is known about the actual long-term t...
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Online Access: | https://doi.org/10.1016/j.margeo.2013.06.002 http://ir.lib.ncku.edu.tw/handle/987654321/147813 http://ir.lib.ncku.edu.tw/bitstream/987654321/147813/-1/index.html |
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ftchengkunguniv:oai:ir.lib.ncku.edu.tw:987654321/147813 2023-05-15T17:49:36+02:00 Ocean acidification trend in the tropical North Pacific since the mid-20th century reconstructed from a coral archive Shinjo, Ryuichi Asami, Ryuji Huang, Kuo-Fang You, Chen-Feng Iryu, Yasufumi Earth Dynamic System Research Center 2013-08-01 https://doi.org/10.1016/j.margeo.2013.06.002 http://ir.lib.ncku.edu.tw/handle/987654321/147813 http://ir.lib.ncku.edu.tw/bitstream/987654321/147813/-1/index.html Eng en_US eng Elsevier� MARINE GEOLOGY, Vol. 342, pp. 58-64 coral pH boron-isotope composition ocean acidification North Pacific article 2013 ftchengkunguniv https://doi.org/10.1016/j.margeo.2013.06.002 2016-05-22T08:18:26Z Ocean acidification caused by anthropogenically elevated CO2 concentration in the atmosphere can pose a critical threat to calcifying marine organisms and coral reef ecosystems. However, because of temporally and spatially limited instrumental pH records, little is known about the actual long-term trend and natural variability of seawater pH during the past century. We present an annually resolved time series of a pH proxy record for 1940-1999 using boron-isotope composition (delta B-11) in a modern massive Porites coral from Guam Island (NW Pacific). When superimposed onto interannual variability, the data show a slightly decreasing trend of similar to 039%0 (equivalent to similar to 0.05-0.08 pH units for surface water pH) in the northwestern tropical Pacific since the mid-20th century. This first reported, coral-based reconstruction of long-term open ocean pH is a unique archive for ocean acidification trend in the North Pacific Ocean for the past, which, along with delta B-11 records from South Pacific corals, can be an important key to ascertaining the extent and rapidity of actual acidification in the Pacific Ocean in the future. (C) 2013 Elsevier B.V. All rights reserved. Article in Journal/Newspaper Ocean acidification National Cheng Kung University: NCKU Institutional Repository Pacific Marine Geology 342 58 64 |
institution |
Open Polar |
collection |
National Cheng Kung University: NCKU Institutional Repository |
op_collection_id |
ftchengkunguniv |
language |
English |
topic |
coral pH boron-isotope composition ocean acidification North Pacific |
spellingShingle |
coral pH boron-isotope composition ocean acidification North Pacific Shinjo, Ryuichi Asami, Ryuji Huang, Kuo-Fang You, Chen-Feng Iryu, Yasufumi Ocean acidification trend in the tropical North Pacific since the mid-20th century reconstructed from a coral archive |
topic_facet |
coral pH boron-isotope composition ocean acidification North Pacific |
description |
Ocean acidification caused by anthropogenically elevated CO2 concentration in the atmosphere can pose a critical threat to calcifying marine organisms and coral reef ecosystems. However, because of temporally and spatially limited instrumental pH records, little is known about the actual long-term trend and natural variability of seawater pH during the past century. We present an annually resolved time series of a pH proxy record for 1940-1999 using boron-isotope composition (delta B-11) in a modern massive Porites coral from Guam Island (NW Pacific). When superimposed onto interannual variability, the data show a slightly decreasing trend of similar to 039%0 (equivalent to similar to 0.05-0.08 pH units for surface water pH) in the northwestern tropical Pacific since the mid-20th century. This first reported, coral-based reconstruction of long-term open ocean pH is a unique archive for ocean acidification trend in the North Pacific Ocean for the past, which, along with delta B-11 records from South Pacific corals, can be an important key to ascertaining the extent and rapidity of actual acidification in the Pacific Ocean in the future. (C) 2013 Elsevier B.V. All rights reserved. |
author2 |
Earth Dynamic System Research Center |
format |
Article in Journal/Newspaper |
author |
Shinjo, Ryuichi Asami, Ryuji Huang, Kuo-Fang You, Chen-Feng Iryu, Yasufumi |
author_facet |
Shinjo, Ryuichi Asami, Ryuji Huang, Kuo-Fang You, Chen-Feng Iryu, Yasufumi |
author_sort |
Shinjo, Ryuichi |
title |
Ocean acidification trend in the tropical North Pacific since the mid-20th century reconstructed from a coral archive |
title_short |
Ocean acidification trend in the tropical North Pacific since the mid-20th century reconstructed from a coral archive |
title_full |
Ocean acidification trend in the tropical North Pacific since the mid-20th century reconstructed from a coral archive |
title_fullStr |
Ocean acidification trend in the tropical North Pacific since the mid-20th century reconstructed from a coral archive |
title_full_unstemmed |
Ocean acidification trend in the tropical North Pacific since the mid-20th century reconstructed from a coral archive |
title_sort |
ocean acidification trend in the tropical north pacific since the mid-20th century reconstructed from a coral archive |
publisher |
Elsevier� |
publishDate |
2013 |
url |
https://doi.org/10.1016/j.margeo.2013.06.002 http://ir.lib.ncku.edu.tw/handle/987654321/147813 http://ir.lib.ncku.edu.tw/bitstream/987654321/147813/-1/index.html |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
MARINE GEOLOGY, Vol. 342, pp. 58-64 |
op_doi |
https://doi.org/10.1016/j.margeo.2013.06.002 |
container_title |
Marine Geology |
container_volume |
342 |
container_start_page |
58 |
op_container_end_page |
64 |
_version_ |
1766155992729387008 |