The current state of marine debris on the seafloor in offshore area around Japan

被引：14

作者：

Kuroda, Mao ^{[1
]}

Uchida, Keiichi ^{[1
]}

Tokai, Tadashi ^{[1
]}

Miyamoto, Yoshinori ^{[1
]}

Mukai, Tohru ^{[2
]}

Imai, Keiri ^{[2
]}

Shimizu, Kenichi ^{[3
]}

Yagi, Mitsuharu ^{[3
]}

Yamanakad, Yuichi ^{[4
]}

Mituhashid, Takahisa ^{[4
]}

机构：

[1] Tokyo Univ Marine Sci & Technol, Minato Ku, 4-5-7 Konan, Tokyo 1088477, Japan

[2] Hokkaido Univ, Hakodate Campus,3-1-1 Minato, Hakodate, Hokkaido 0418611, Japan

[3] Nagasaki Univ, 14 Bunkyo, Nagasaki, Nagasaki 8528521, Japan

[4] Kagoshima Univ, 4-50-20 Shimoarata, Kagoshima, Kagoshima 8908580, Japan

来源：

MARINE POLLUTION BULLETIN | 2020年 / 161卷

关键词：

Marine debris; Sea floor; Plastic; Trawl; Marine pollution; DATE-PRINTS; LITTER; MACROPLASTICS; BOTTOM;

D O I：

10.1016/j.marpolbul.2020.111670

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Marine debris on the seafloor has not been thoroughly investigated, and there is little information compared to other types of marine debris. We conducted bottom trawl surveys to determine the present situation of marine debris on the seafloor in offshore areas around Japan. The survey was conducted in three sea areas with different characteristics. As a result, it was found that the amount of marine debris in submarine canyons (2926.1 items/km(2)) was higher than on the continental shelf. It was revealed that most marine debris on the seafloor is comprised of plastic products, and that debris on the seafloor retains its condition for a long time (over 30 years) without deterioration. In addition, the type of marine debris is affected by the industries operating in each area. Continuing to investigate marine debris on the seafloor in more areas will contribute to solving the problem of marine debris.

引用

页数：8

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