Assimilation of selenium from photoplankton by three benthic invertebrates: effect of phytoplankton species

摘要

Phytoplankton are an important source of selenium(Se)for aquatic invertebrates, which accumulate Se primarily through dietary ingestion. The extent to which Se biovailability varies among different phytoplankton species could help explain different bioaccumulation patterns observed for invertebrates in nature. We measured the efficiency with which 3 benthic invertebrates assimilated ~75Se from 5 phytoplankton species using standard pulse-chanse techniques. The inverte- brates included the amphipod Leptocheirus plumulosus and the bivalves Macoma balthica and Pota- mocorbula amurensis.