Seasonal Variation of Contaminated Geo-Environmental Condition of Yamaguchi Bay Tidal Flat, Japan

In this study, the seasonal variation of geo-environmental condition of Yamaguchi Bay tidal flat has been studied. Yamaguchi bay is located at the south part of Yamaguchi prefecture and was famous for its different kind of shells and other living creatures. However, a sharp declination of a catch of...

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Main Authors:	Moqsud, M. Azizul, Sato, Koki, Muzamir, Hasan, Yukio, Nakata, Omine, Kiyoshi
Format:	Article
Language:	English
Published:	Elsevier 2017
Subjects:	TD Environmental technology. Sanitary engineering
Online Access:	http://umpir.ump.edu.my/id/eprint/16349/ http://umpir.ump.edu.my/id/eprint/16349/ http://umpir.ump.edu.my/id/eprint/16349/ http://umpir.ump.edu.my/id/eprint/16349/1/fkasa-2016-Seasonal%20Variation%20Of%20Contaminated%20Geo1.pdf

id	ump-16349
recordtype	eprints
spelling	ump-163492018-02-06T06:24:00Z http://umpir.ump.edu.my/id/eprint/16349/ Seasonal Variation of Contaminated Geo-Environmental Condition of Yamaguchi Bay Tidal Flat, Japan Moqsud, M. Azizul Sato, Koki Muzamir, Hasan Yukio, Nakata Omine, Kiyoshi TD Environmental technology. Sanitary engineering In this study, the seasonal variation of geo-environmental condition of Yamaguchi Bay tidal flat has been studied. Yamaguchi bay is located at the south part of Yamaguchi prefecture and was famous for its different kind of shells and other living creatures. However, a sharp declination of a catch of shells and crabs have been observed in recent years. Particularly, the living creatures related to the tidal flat mud have been suffered a damage. Recently, the horseshoe crabs which used to come onto shore to mate is declining in Yamaguchi bay which is not good for the marine ecosystem of this area. The mud samples were collected from the tidal flat area once in every month by using the tube sampler. Then the samples were cut into specified layer and measured the different geo-environmental parameters (acid volatile sulfide, pH, loss on ignition, COD, Electrical conductivity) at the laboratory in each layer. It was observed that the acid volatile sulfide (AVS) which is the most important parameter for the living condition of the living creatures is over the safe limit (0.2 mg/g-dry mud) during the summer. The other parameters such as pH, LOI, have also significant variation in different seasons but they were still within the safe limit. The COD value of the tidal mud also showed a significant variation during the summer and the winter. However, the higher AVS value was one of the reasons for the declination of horseshoe crabs and other living creature in the tidal flat of Yamaguchi bay, Japan. Elsevier 2017-02 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/16349/1/fkasa-2016-Seasonal%20Variation%20Of%20Contaminated%20Geo1.pdf Moqsud, M. Azizul and Sato, Koki and Muzamir, Hasan and Yukio, Nakata and Omine, Kiyoshi (2017) Seasonal Variation of Contaminated Geo-Environmental Condition of Yamaguchi Bay Tidal Flat, Japan. Regional Studies in Marine Science, 10. pp. 27-31. ISSN 2352-4855 http://dx.doi.org/10.1016/j.rsma.2017.01.002 DOI: 10.1016/j.rsma.2017.01.002
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TD Environmental technology. Sanitary engineering
spellingShingle	TD Environmental technology. Sanitary engineering Moqsud, M. Azizul Sato, Koki Muzamir, Hasan Yukio, Nakata Omine, Kiyoshi Seasonal Variation of Contaminated Geo-Environmental Condition of Yamaguchi Bay Tidal Flat, Japan
description	In this study, the seasonal variation of geo-environmental condition of Yamaguchi Bay tidal flat has been studied. Yamaguchi bay is located at the south part of Yamaguchi prefecture and was famous for its different kind of shells and other living creatures. However, a sharp declination of a catch of shells and crabs have been observed in recent years. Particularly, the living creatures related to the tidal flat mud have been suffered a damage. Recently, the horseshoe crabs which used to come onto shore to mate is declining in Yamaguchi bay which is not good for the marine ecosystem of this area. The mud samples were collected from the tidal flat area once in every month by using the tube sampler. Then the samples were cut into specified layer and measured the different geo-environmental parameters (acid volatile sulfide, pH, loss on ignition, COD, Electrical conductivity) at the laboratory in each layer. It was observed that the acid volatile sulfide (AVS) which is the most important parameter for the living condition of the living creatures is over the safe limit (0.2 mg/g-dry mud) during the summer. The other parameters such as pH, LOI, have also significant variation in different seasons but they were still within the safe limit. The COD value of the tidal mud also showed a significant variation during the summer and the winter. However, the higher AVS value was one of the reasons for the declination of horseshoe crabs and other living creature in the tidal flat of Yamaguchi bay, Japan.
format	Article
author	Moqsud, M. Azizul Sato, Koki Muzamir, Hasan Yukio, Nakata Omine, Kiyoshi
author_facet	Moqsud, M. Azizul Sato, Koki Muzamir, Hasan Yukio, Nakata Omine, Kiyoshi
author_sort	Moqsud, M. Azizul
title	Seasonal Variation of Contaminated Geo-Environmental Condition of Yamaguchi Bay Tidal Flat, Japan
title_short	Seasonal Variation of Contaminated Geo-Environmental Condition of Yamaguchi Bay Tidal Flat, Japan
title_full	Seasonal Variation of Contaminated Geo-Environmental Condition of Yamaguchi Bay Tidal Flat, Japan
title_fullStr	Seasonal Variation of Contaminated Geo-Environmental Condition of Yamaguchi Bay Tidal Flat, Japan
title_full_unstemmed	Seasonal Variation of Contaminated Geo-Environmental Condition of Yamaguchi Bay Tidal Flat, Japan
title_sort	seasonal variation of contaminated geo-environmental condition of yamaguchi bay tidal flat, japan
publisher	Elsevier
publishDate	2017
url	http://umpir.ump.edu.my/id/eprint/16349/ http://umpir.ump.edu.my/id/eprint/16349/ http://umpir.ump.edu.my/id/eprint/16349/ http://umpir.ump.edu.my/id/eprint/16349/1/fkasa-2016-Seasonal%20Variation%20Of%20Contaminated%20Geo1.pdf
first_indexed	2023-09-18T22:21:56Z
last_indexed	2023-09-18T22:21:56Z
_version_	1777415714385166336

Seasonal Variation of Contaminated Geo-Environmental Condition of Yamaguchi Bay Tidal Flat, Japan

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