Species diversity of deep-sea benthic Foraminifera from the central Arctic Ocean

摘要

The species diversity of benthic Foraminifera contained in 67 sediment samples from the central Arctic Ocean is investigated to determine diversity patterns in a deep-sea, high-latitude environment. The samples range in depth from 1,069 to 3,709 m. Species diversity and equitability, as measured by the number of species, S, the Shannon-Wiener index, H(S), the Buzas-Gibson index, E, and the Lloyd-Ghelardi index, e, decrease with depth in this interval. Comparison with previously published data suggests that species diversity decreases with depth throughout the entire depth range of the Arctic Ocean.