房総半島沖の日本海溝域における現生浮遊性有孔虫群集

概要

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Plankton tow samples were obtained in different seasons from different water depths in the Japan Trench off Boso Peninsula of central Japan. The planktonic foraminiferal faunas collected in summer, autumn, and winter seasons are completely different from each other. The dominant species are composed of Globigerinoides ruber and Globigerinoides sacculifer in summer, Pulleniatina obliquiloculata and Globigerinoides sacculifer in autumn, and Globorotalia inflata and Globorotalia truncatulinoides in winter. The samples collected from different water depths in the same season show different relative abundance of the species, indicating the preferred depth habitat of each species. These plankton tow data provide fundamental information on the planktonic foraminiferal fauna in the sediment traps deployed at 4000m and 9000m water depths in this region.
日本古生物学会の論文
1992-06-30