<論文>北部北太平洋およびベーリング海におけるレディオラリア・フラックスの季節変化 (予報)

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Seasonal radiolarian fluxes were studied using time-series sediment traps deployed in the Bering Sea (Station AB) and central subarctic Pacific (Station SA) during August 1990 through August 1993. The mean value of three-year radiolian fluxes at Station AB was slightly greater than that of Station SA. Deep dwelling species (e. g., Artostrobus annulatus, Cornutella profunda) occurred more abundantly at Station SA than at Station AB. On the other hand, fluxes of Stylochlamydium venustum and Rhizoplegma boreale, both shallow dwelling species, were higher at Station AB than those at Station SA. Their fluxes can be correlated with total mass fluxes. The fluxes of Cycladophora davisiana davisiana showed a clear seasonal pattern at Station AB, but no significant one was obtained at Station SA. Primary flux peaks for C. d. davisiana at Sta. AB occurred during fall whereas its secondary peaks occurred during spring. The contrast in the seasonal fluxes at the two regions are due to differences in water mass in the pelagic and the marginal sea.
北海道東海大学の論文
1995-03-25