An evaluation of Lohmann's foraminifera weight dissolution index

Down water column traverses of core top weights for three planktonic specie s confirm Lohmann's [1995] relationship between foraminifera shell weight l oss and bottom water carbonate ion content. However, they also suggest that the initial shell thickness varies with growth habitat and that the offset between bottom water and pore water carbonate ion concentration varies eve n on small space scales.