Radiolyarievyi Analiz (Radiolarian Analysis)

Biogeography of Radiolaria Polycystina (Protista) in the World Ocean

“…The few that covered large areas did not provide exhaustive lists of the species recorded in their samples (Petrushevskaya, 1971) or worked with restricted subsets ($10-70 species) of the taxocoenoses (Hays, 1965;Lombari and Boden, 1985;Molina-Cruz, 1978;Moore, 1978;Morley, 1977;Pisias et al, 1997;Swanberg, 1979), or both (Strelkov and Reshetnjak, 1971). Nevertheless, several valuable biogeographic zonations of various oceanic sectors have been produced in the last decades, chiefly on the basis of sediment materials (Hays, 1965;Johnson andNigrini, 1980, 1982;Lozano and Hays, 1976;Molina-Cruz, 1978;Moore, 1978;Nigrini, 1967;Nigrini, 1968;Petrushevskaya, 1967Petrushevskaya, , 1986Robertson, 1975;Sachs, 1973). An exhaustive critical literature review of all the information available up to 2009 was used to assemble a comprehensive database of the distribution and relative abundance of 307 radiolarian species reported from plankton, sediment trap, and surface sediments of the World Ocean (Boltovskoy et al, 2010), allowing to produce, for the first time, a global biogeographic map for this group.…”