Diatom abundance in surface sediments of the northern North Pacific ...

• Main Authors: Ren, Jian, Gersonde, Rainer, Esper, Oliver, Sancetta, Constance A
• Format: Dataset
• Language: English
• Published: PANGAEA 2014
• Subjects: Event label; Latitude of event; Longitude of event; Elevation of event; DEPTH, sediment/rock; Achnanthes lanceolata; Achnanthes minutissima; Achnanthes spp.; Actinocyclus curvatulus; Actinocyclus ochotensis; Actinocyclus cf. octonarius; Actinocyclus octonarius; Actinocyclus oculatus; Actinocyclus sp.; Actinocyclus spp.; Actinoptychus senarius; Actinoptychus splendens; Actinoptychus vulgaris; Alveus marinus; Amphora spp.; Asteromphalus brookei; Asteromphalus hyalinus; Asteromphalus marylandicus; Asteromphalus robustus; Aulacoseira granulata; Aulacoseira spp.; Azpeitia nodulifer; Azpeitia tabularis; Bacillaria paxillifer; Bacterosira bathyomphala; Chaetoceros atlanticus; Chaetoceros diadema, resting spores; Chaetoceros furcellatus; Chaetoceros, resting spores; Cocconeis californica; Cocconeis costata; Cocconeis pellucida; Cocconeis placentula; Cocconeis scutellum; Cocconeis spp.; Coscinodiscus marginatus; Coscinodiscus radiatus; Coscinodiscus oculus-iridis; Cyclotella litoralis; Cyclotella ocellata; Cyclotella spp.; Cyclotella striata; Cymbella spp.; Delphineis kippae; Delphineis surirella; Bering Sea; Subarctic
• Online Access: https://dx.doi.org/10.1594/pangaea.830544; https://doi.pangaea.de/10.1594/PANGAEA.830544

In order to map the modern distribution of diatoms and to establish a reliable reference data set for paleoenvironmental reconstruction in the northern North Pacific, a new data set including the relative abundance of diatom species preserved in a total of 422 surface sediments was generated, which covers a broad range of environmental variables characteristic of the subarctic North Pacific, the Sea of Okhotsk and the Bering Sea between 30° and 70°N. The biogeographic distribution patterns as well as the preferences in sea surface temperature of 38 diatom species and species groups are documented. A Q-mode factor analysis yields a three-factor model representing assemblages associated with the Arctic, Subarctic and Subtropical water mass, indicating a close relationship between the diatom composition and the sea surface temperatures. The relative abundance pattern of 38 diatom species and species groups was statistically compared with nine environmental variables, i.e. the summer sea surface temperature and ... : Data are accessible on request: [e-mail] ...