Paleoceanographic Implications of Benthic Foraminiferal Culture

研究人员将在温度、有机碳浓度和同位素组成的控制条件下培养底栖有孔虫，以确定对碳同位素分馏和洞穴行为的控制。他们将从上大陆斜坡收集活标本，选择古海洋学家使用的分类群，通过现场测量孔隙水在混合种群和单一种群中培养它们，操纵环境温度和孔隙水化学，观察洞穴行为，并分析同位素组成和形态。

The investigators will culture benthic foraminifera under controlled conditions of temperature, organic carbon concentration, and isotopic composition in order to determine the controls on carbon isotope fractionation and burrowing behavior. They will collect live specimens from the upper continental slope, selecting taxa used by paleoceanographers, culture them in mixed and monospecific populations with in situ measurement of pore-waters, manipulate ambient temperature and pore-water chemistry, observe burrowing behavior, and analyze isotopic composition and morphology.