Long-term ocean acidification trends in coastal waters around Japan

Abstract This study examines long-term ocean pH data to evaluate ocean acidification (OA) trends at two coastal research institutions located on the Sea of Japan and the Pacific Ocean. These laboratories are located away from the influences of large rivers and major industrial activity. Measurements...

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Autores principales:	Hiroshi Ishida, Ryosuke S. Isono, Jun Kita, Yutaka W. Watanabe
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b2187455cddf4bf386ed1197286a0f85
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spelling	oai:doaj.org-article:b2187455cddf4bf386ed1197286a0f852021-12-02T15:54:06ZLong-term ocean acidification trends in coastal waters around Japan10.1038/s41598-021-84657-02045-2322https://doaj.org/article/b2187455cddf4bf386ed1197286a0f852021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-84657-0https://doaj.org/toc/2045-2322Abstract This study examines long-term ocean pH data to evaluate ocean acidification (OA) trends at two coastal research institutions located on the Sea of Japan and the Pacific Ocean. These laboratories are located away from the influences of large rivers and major industrial activity. Measurements were performed daily for the past 30 years (1980s–2010s). The average annual ocean pH for both sites showed generally negative trends. These trends were – 0.0032 and – 0.0068 year–1 (p < 0.001) at the Sea of Japan and Pacific Ocean sites, respectively. The trends were superimposed onto approximately 10-year oscillations, which appear to synchronize with the ocean current periodicity. At the Sea of Japan site, the ocean pH in the summer was higher, and the rate of OA was higher than during other seasons. Our results suggest that seasonality and ocean currents influence OA in the coastal areas of open oceans and can affect the coastal regions of marginal seas.Hiroshi IshidaRyosuke S. IsonoJun KitaYutaka W. WatanabeNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-7 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Hiroshi Ishida Ryosuke S. Isono Jun Kita Yutaka W. Watanabe Long-term ocean acidification trends in coastal waters around Japan
description	Abstract This study examines long-term ocean pH data to evaluate ocean acidification (OA) trends at two coastal research institutions located on the Sea of Japan and the Pacific Ocean. These laboratories are located away from the influences of large rivers and major industrial activity. Measurements were performed daily for the past 30 years (1980s–2010s). The average annual ocean pH for both sites showed generally negative trends. These trends were – 0.0032 and – 0.0068 year–1 (p < 0.001) at the Sea of Japan and Pacific Ocean sites, respectively. The trends were superimposed onto approximately 10-year oscillations, which appear to synchronize with the ocean current periodicity. At the Sea of Japan site, the ocean pH in the summer was higher, and the rate of OA was higher than during other seasons. Our results suggest that seasonality and ocean currents influence OA in the coastal areas of open oceans and can affect the coastal regions of marginal seas.
format	article
author	Hiroshi Ishida Ryosuke S. Isono Jun Kita Yutaka W. Watanabe
author_facet	Hiroshi Ishida Ryosuke S. Isono Jun Kita Yutaka W. Watanabe
author_sort	Hiroshi Ishida
title	Long-term ocean acidification trends in coastal waters around Japan
title_short	Long-term ocean acidification trends in coastal waters around Japan
title_full	Long-term ocean acidification trends in coastal waters around Japan
title_fullStr	Long-term ocean acidification trends in coastal waters around Japan
title_full_unstemmed	Long-term ocean acidification trends in coastal waters around Japan
title_sort	long-term ocean acidification trends in coastal waters around japan
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/b2187455cddf4bf386ed1197286a0f85
work_keys_str_mv	AT hiroshiishida longtermoceanacidificationtrendsincoastalwatersaroundjapan AT ryosukesisono longtermoceanacidificationtrendsincoastalwatersaroundjapan AT junkita longtermoceanacidificationtrendsincoastalwatersaroundjapan AT yutakawwatanabe longtermoceanacidificationtrendsincoastalwatersaroundjapan
_version_	1718385470935662592

Long-term ocean acidification trends in coastal waters around Japan

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