Spatial and temporal variation of sediment properties along the coast of the Sanriku District, Iwate Prefecture, due to the tsunami generated by the Great East Japan Earthquake in 2011

被引：9

作者：

Naiki, Kimiaki ^{[1
,2
]}

Yamada, Miwa ^{[2
]}

Kaga, Shinnosuke ^{[1
]}

Watanabe, Shiho ^{[1
]}

Kamiyama, Takashi ^{[3
]}

Kado, Ryusuke ^{[4
]}

Ogata, Takehiko ^{[4
]}

Nanba, Nobuyoshi ^{[4
]}

Hayashizaki, Ken-ichi ^{[4
]}

Yamada, Yuichiro ^{[4
]}

Yamashita, Tetsurou ^{[2
,5
]}

机构：

[1] Iwate Fisheries Technol Ctr, Kamaishi, Iwate 0260001, Japan

[2] Iwate Univ, United Grad Sch Agr Sci, Morioka, Iwate 0208550, Japan

[3] Fisheries Res Agcy, Tohoku Natl Fisheries Res Inst, Shiogama, Miyagi 9850001, Japan

[4] Kitasato Univ, Sch Marine Biosci, Sagamihara, Kanagawa 2520373, Japan

[5] Iwate Univ, Org Revitalizat Sanriku Reg, Morioka, Iwate 0208550, Japan

来源：

NIPPON SUISAN GAKKAISHI | 2015年 / 81卷 / 03期

关键词：

D O I：

10.2331/suisan.81.447

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

To determine the effects of the tsunami generated by the Great East Japan Earthquake in 2011 on the environment of aquaculture farming grounds, we investigated environmental conditions of the sediment in nine bays along the Pacific Coast of northern Japan. Comparisons were made before and after the Earthquake and tsunami for the following variables: mud content (MC), chemical oxygen demand (COD), and acid volatile sulfides (AVS). The spatial and temporal distributions of MC, COD, and AVS varied with differences in geographic characteristics of the bay. The amount of open water in the bay decreased but the breakwater in the bay increased after the tsunami. Changes in MC, COD, and AVS were supported by the results of numerical simulations, and our results indicated that all three variables are good indicators for managing the environment of aquaculture farming grounds.

引用

页码：447 / 455

页数：9