Vertical flux of phytoplankton and particulate matter in the White Sea according to the long-term exposure of sediment traps |
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| Authors: | L V Ilyash I G Radchenko A N Novigatsky A P Lisitzin V P Shevchenko |
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| Institution: | 16451. Faculty of Biology, Moscow State University, Moscow, Russia
26451. Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, Russia
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| Abstract: | The vertical fluxes of phytoplankton (VFPhyto) and particulate organic carbon (VFPOC) in the White Sea were determined using seven long-term (292 to 296 days) sediment traps moored at five stations at 67–255 m depths. The annual VFPhyto and VFPOC ranged from 0.55 to 24.64 g C/m2 and from 3.7 to 93.9 g C/m2, respectively. The highest VFPhyto was observed in the Basin region located close to the Gorlo along the Tersk coast. The algal biomass accounted for 15–43% of the VFPOC. Diatoms comprised the most important group, accounting for 83–100% in the sedimented biomass. Thalassiosira nordenskioeldii dominated in the VFPhyto at all the stations except for the station in the basin close to Onega Bay, where Ditylum brightwellii was the most abundant. |
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