Distribution of Diatom Species in Surface Sediments of the Bering and Okhotsk Seas

Surface sediment diatom distribution and Holocene paleotemperature variations in the Greenland, Iceland and Norwegian Sea

“…Otherwise, as a group they have very large salinity and temperature tolerances. The high-latitude species diversity is also high (43 major species in this study) [Sancetta, 1982;Schrader and Koc Karpuz, 1990]. Sea ice has been an important component of the physical environment in high latitudes.…”

“…The communalities are generally higher than 0.80 (sample 57-10) in all samples (Table 5) distribution of this assemblage shows a close relation to the spring sea ice limit of the GIN Sea (Figure 4). Species of this assemblage have often been reported from ice packs, ice margin plankton collections, and high-latitude sediments underlying such areas [Horner, 1982;Sancetta, 1982;Horner, 1985;Williams, 1986]. Horner [1982] reports that while the ice algal bloom consists primarily of pennate diatoms, the ph.vtoplankton bloom at the ice edge consists mainly of centric diatoms and that Nitzschia grunowii and Nitzschia cylindra are abundant in both habitats.…”

Recent to Middle Miocene Diatom Productivity at Site 907, Iceland Plateau

“…Spores of the genus Chaetoceros are usually taken as a measure of diatom productivity (Sancetta, 1982;Abrantes, 1988). These spores are believed to characterize the late stage production in coastal upwelling areas, but it is also possible that in an offshore setting they indicate some degree of erosion and lateral advection from shelf sediments (Sancetta et al, 1992).…”

Expedition 323 summary

“…This is based on the geographic and seasonal distributions of A. curvatulus, which appears to be ecologically similar to Thalassiosira latimarginata s.l. and, to a lesser extent, N. seminae (Sancetta, 1982;Takahashi, 1986;Takahashi et al, 1989). As surface waters became increasingly stratified, especially after ~0.9 Ma with Milankovitch-scale 100 k.y.…”