Ostracod valve counts at IODP Site 347-M0059 (Baltic Sea), upper 52.3 meters composite depth

A total of 75 30CC sediment samples were processed for ostracod analysis. Ostracods were picked from the entire sample residues and their valves identified and counted.
At site M0059 two ecological classes of ostracods in relation to salinity were distinguished based on ecological data and distribution of modern taxa in the Baltic Sea and adjacent areas: freshwater and brackish-marine. Among brackish-marine ostracods very shallow and deeper water species were distinguished based on ecological data.

共计75份30CC的沉积物样品经处理后用于介形虫（Ostracod）分析。研究人员从全部样品的残渣中分选出介形虫，并对其介壳进行鉴定与计数。
在M0059站位，研究人员依据波罗的海及其邻近区域的现代类群（taxa）分布与生态学数据，区分出两类与盐度相关的介形虫生态类群：淡水类群与咸淡水-海洋类群。在咸淡水-海洋类介形虫中，研究人员进一步依据生态学数据区分出极浅水环境与深水环境的物种。