ROW: Seasonal and Interannual Variations in the Distribution, Abundance, and Isotopic Composition of Planktonic Foraminifera within an Upwelling Region

研究人员将继续研究浮游有孔虫对海洋上升流的反应。本研究区受加利福尼亚海流强度的季节性和年际变化的强烈影响，导致明显的埃克曼诱发上升流期。该研究将导致：(1)增加对浮游有孔虫生态的了解，浮游有孔虫生活在一个高度不稳定但多产的季节性上升流栖息地；(2)记录这些物种的季节演替和组合组成；(3)确定对上升流和/或浮游植物华流条件作出反应的物种；(4)有孔虫稳定同位素组成中上升流信号的识别；(5)生物扰动和非生物扰动沉积物中有孔虫的季节丰度/分布格局和沉积组合的同位素组成。

Funds are provided to support the investigator's ongoing efforts to study the response of planktonic foraminifera to oceanic upwelling. This study area is strongly influenced by seasonal and interannual variations in the strength of the California Current, resulting in pronounced periods of Ekman- induced upwelling. The study will result in an (1) increased understanding of the ecology of planktonic foraminifera which live in a highly unstable but productive seasonal upwelling habitat; (2) documentation of the seasonal succession and assemblage composition of these species: (3) identification of species that respond to periods of upwelling and/or phytoplankton bloom conditions; (4) identification of upwelling signals recorded in the stable isotopic composition of foraminiferal tests; (5) an composition of foraminiferal seasonal abundance/distribution patterns and isotopic composition to sedimentary assemblages in both bioturbated and non-bioturbated sediments.