Journal of the Graduate School of Biosphere Science, Hiroshima University Volume 50
2011-12-24 発行

阿蘇海より採集されたミヤコドリ(軟体動物:腹足目:アマオブネガイ目)殻表面の黒色沈着物の元素組成

Elemental composition of black deposits on the shells of Phenacolepas pulchella (Mollusca: Gastropoda: Neritopsina) collected from the Aso-kai lagoon, Kyoto, Japan
Kuramochi, Takashi
Koi, Akiko
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abstract
Aso-kai is a lagoon separated by sand spit from the Miyazu Bay, a marginal water of the Sea of Japan. We collected individuals of Phenacolepas pulchella, belonging to the order Neritimorpha, from inside of oyster reefs, as the first record of such inhabitation. Shell surface of P. pulchella accumulated blackish deposits. Electron probe micro-analysis revealed that the deposits consist mainly of manganese oxides (MnOn). Geochemical setting of the habitat may facilitate accumulation of the redox-sensitive element, Mn.
subject
阿蘇海
海跡湖
酸化還元
マンガン
ミヤコドリ Phenacolepas pulchella
Aso-kai
coastal lagoon
manganese
Phenacolepas pulchella
redox