Seasonal variations in iodine concentrations in a brown alga (Ecklonia cava Kjellman) and a seagrass (Zostera marina L.) in the northwestern Pacific coast of central Japan
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Seasonal variations in iodine concentrations were investigated for two years in a brown alga (Ecklonia cava Kjellman) and a seagrass (Zostera marina L.) occurring in the northwestern Pacific coast of central Japan. The iodine concentration in E. cava was 0.92–5.6 mg per gram dry weight (g‒ 1 DW) (mean ± SD:2.3 ± 1.1 mg g‒1 DW), and its variation was similar to that of other brown algae. In Z. marina, the iodine concentration was 17–110 μg g‒1 DW (61 ± 28 μg g‒ 1 DW) and displayed seasonal variation, as it was high in winter and spring and low in autumn.
KeywordsIodine Seaweed Seagrass Seasonal variation
We wish to sincerely thank Dr. Shinji Ueda for providing insightful suggestions and advice for improving our manuscript. This study was performed as part of joint research by the Japanese Association for Marine Biology (JAMBIO).
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