Abundance of non-conservative microplastics in the upper ocean from 1957 to 2066

Atsuhiko Isobe, Shinsuke Iwasaki, Keiichi Uchida, Tadashi Tokai

研究成果: ジャーナルへの寄稿記事

3 引用 (Scopus)

抄録

Laboratory-based studies have suggested that marine organisms can be harmed by ingesting microplastics. However, unless the current and future microplastic abundance in the ocean environment is quantified, these experimental studies could be criticized for using an unrealistic density or sparsity of microplastics. Here we show the secular variations of pelagic microplastic abundance in the Pacific Ocean from 1957 to 2066, based on a combination of numerical modeling and transoceanic surveys conducted meridionally from Antarctica to Japan. Marine plastic pollution is an ongoing concern especially in the North Pacific, and pelagic microplastics are regarded as non-conservative matter due to the removal processes that operate in the upper ocean. The results of our numerical model incorporating removal processes on a 3-year timescale suggested that the weight concentrations of pelagic microplastics around the subtropical convergence zone would increase approximately twofold (fourfold) by 2030 (2060) from the present condition.

元の言語英語
記事番号417
ジャーナルNature communications
10
発行部数1
DOI
出版物ステータス出版済み - 12 1 2019

Fingerprint

Oceans and Seas
oceans
Pacific Ocean
Aquatic Organisms
secular variations
Antarctic regions
pollution
organisms
Plastics
Numerical models
Japan
Pollution
plastics
Weights and Measures
Surveys and Questionnaires

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Physics and Astronomy(all)

これを引用

Abundance of non-conservative microplastics in the upper ocean from 1957 to 2066. / Isobe, Atsuhiko; Iwasaki, Shinsuke; Uchida, Keiichi; Tokai, Tadashi.

:: Nature communications, 巻 10, 番号 1, 417, 01.12.2019.

研究成果: ジャーナルへの寄稿記事

Isobe, Atsuhiko ; Iwasaki, Shinsuke ; Uchida, Keiichi ; Tokai, Tadashi. / Abundance of non-conservative microplastics in the upper ocean from 1957 to 2066. :: Nature communications. 2019 ; 巻 10, 番号 1.
@article{943f17bac9f54e3f80703b5452068ccd,
title = "Abundance of non-conservative microplastics in the upper ocean from 1957 to 2066",
abstract = "Laboratory-based studies have suggested that marine organisms can be harmed by ingesting microplastics. However, unless the current and future microplastic abundance in the ocean environment is quantified, these experimental studies could be criticized for using an unrealistic density or sparsity of microplastics. Here we show the secular variations of pelagic microplastic abundance in the Pacific Ocean from 1957 to 2066, based on a combination of numerical modeling and transoceanic surveys conducted meridionally from Antarctica to Japan. Marine plastic pollution is an ongoing concern especially in the North Pacific, and pelagic microplastics are regarded as non-conservative matter due to the removal processes that operate in the upper ocean. The results of our numerical model incorporating removal processes on a 3-year timescale suggested that the weight concentrations of pelagic microplastics around the subtropical convergence zone would increase approximately twofold (fourfold) by 2030 (2060) from the present condition.",
author = "Atsuhiko Isobe and Shinsuke Iwasaki and Keiichi Uchida and Tadashi Tokai",
year = "2019",
month = "12",
day = "1",
doi = "10.1038/s41467-019-08316-9",
language = "English",
volume = "10",
journal = "Nature Communications",
issn = "2041-1723",
publisher = "Nature Publishing Group",
number = "1",

}

TY - JOUR

T1 - Abundance of non-conservative microplastics in the upper ocean from 1957 to 2066

AU - Isobe, Atsuhiko

AU - Iwasaki, Shinsuke

AU - Uchida, Keiichi

AU - Tokai, Tadashi

PY - 2019/12/1

Y1 - 2019/12/1

N2 - Laboratory-based studies have suggested that marine organisms can be harmed by ingesting microplastics. However, unless the current and future microplastic abundance in the ocean environment is quantified, these experimental studies could be criticized for using an unrealistic density or sparsity of microplastics. Here we show the secular variations of pelagic microplastic abundance in the Pacific Ocean from 1957 to 2066, based on a combination of numerical modeling and transoceanic surveys conducted meridionally from Antarctica to Japan. Marine plastic pollution is an ongoing concern especially in the North Pacific, and pelagic microplastics are regarded as non-conservative matter due to the removal processes that operate in the upper ocean. The results of our numerical model incorporating removal processes on a 3-year timescale suggested that the weight concentrations of pelagic microplastics around the subtropical convergence zone would increase approximately twofold (fourfold) by 2030 (2060) from the present condition.

AB - Laboratory-based studies have suggested that marine organisms can be harmed by ingesting microplastics. However, unless the current and future microplastic abundance in the ocean environment is quantified, these experimental studies could be criticized for using an unrealistic density or sparsity of microplastics. Here we show the secular variations of pelagic microplastic abundance in the Pacific Ocean from 1957 to 2066, based on a combination of numerical modeling and transoceanic surveys conducted meridionally from Antarctica to Japan. Marine plastic pollution is an ongoing concern especially in the North Pacific, and pelagic microplastics are regarded as non-conservative matter due to the removal processes that operate in the upper ocean. The results of our numerical model incorporating removal processes on a 3-year timescale suggested that the weight concentrations of pelagic microplastics around the subtropical convergence zone would increase approximately twofold (fourfold) by 2030 (2060) from the present condition.

UR - http://www.scopus.com/inward/record.url?scp=85060545848&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85060545848&partnerID=8YFLogxK

U2 - 10.1038/s41467-019-08316-9

DO - 10.1038/s41467-019-08316-9

M3 - Article

VL - 10

JO - Nature Communications

JF - Nature Communications

SN - 2041-1723

IS - 1

M1 - 417

ER -