Biomonitoring System to Assist in Early Detection of Oxygen–deficient Sea Water using Shell Valve Movements of Pacific Oyster (Crassostrea gigas) - 九大コレクション

＜紀要論文＞
Biomonitoring System to Assist in Early Detection of Oxygen–deficient Sea Water using Shell Valve Movements of Pacific Oyster (Crassostrea gigas)

作成者	作成者名 OH, Seok Jin 所属機関所属機関名 Department of Oceanography, Pukyong National University
	作成者名 MOON, Suyeon 所属機関所属機関名 Department of Oceanography, Pukyong National University
	作成者名 YOON, Yang Ho 所属機関所属機関名 Faculty of Marine Technology, Chonnam National University
	作成者名 KIM, Dae Hyun 所属機関所属機関名 Oceantech Co.
	作成者名 KANG, Ik Joon 所属機関所属機関名 School of Interdisciplinary Science and Innovation, Kyushu University 九州大学共創学部
	著者識別子 100021953 作成者名 SHIMASAKI, Yohei 島崎, 洋平シマサキ, ヨウヘイ所属機関所属機関名 Laboratory of Marine Environmental Science, Division of Animal & Marine Bioresource Science, Department of Bioresource Sciences, Faculty of Agriculture, Kyushu University 九州大学大学院農学研究院資源生物科学部門
本文言語	英語
出版者	Faculty of Agriculture, Kyushu University
出版者	九州大学大学院農学研究院
発行日	2021
収録物名	九州大学大学院農学研究院紀要
巻	66
号	2
開始ページ	217
終了ページ	225
出版タイプ	Version of Record
アクセス権	open access
JaLC DOI	https://doi.org/10.15017/4486554

ファイル	ファイルタイプ	サイズ	閲覧回数	説明
6602_p217	pdf	1.67 MB	1,024

PISSN	0023-6152
NCID	AA00697606
レコードID	4486554
主題	Biomonitoring system
	Shell valve movement (SVM)
	Pacific oyster (Crassostrea gigas)
	oxygen–deficient water
注記	To develop a biomonitoring system to assist in the early detection of oxygen–deficient water in aquaculture settings, we conducted laboratory and field experiments using shell valve movements (SVMs) of Pacific oysters (Crassostrea gigas). Typical patterns of SVM showed that closing was quick (closing time ~1 sec), whereas opening was slow (opening time ~10 min). Under normal conditions, the SVMs averaged 6 ± 3 times/h. In a laboratory test, however, SVMs responded immediately when the dissolved oxygen concentration decreased and increased to 30 ± 17 times/h. When the dissolved oxygen concentration was only 2.0 ppm, all experiments recorded no SVMs; instead, the shells remained closed. Abnormally high or low rates of SVM were a regular occurrence under hypoxic and anoxic conditions. In field experiments, oyster shells remained closed in hypoxic water, but the rate of SVMs rapidly increased before and after exposure to hypoxic water, just as in the laboratory experiment. Thus, the observation of rapid SVMs or no SVM might serve as a biomarker of abnormal conditions, such as oxygen–deficient water.
登録日	2021.09.02
更新日	2022.11.11