THE FIRST RECORD OF THALASSIOSIRA ANGULATA (BACILLARIOPHYCEAE) BLOOM IN THE WHITE SEA: SPATIAL DISTRIBUTION AND CONCOMITANT SPECIES
Abstract
Species composition and biomass of phytoplankton (Bsum), concentrations of chlorophyll “a” and nutrients, as well as hydrophysical conditions were studied from 5th to 12th of July, 2011 at 29 stations in the White Sea. With the exception of indicators for two stations in the surface layer of the water column, the values of chlorophyll “a” and Bsum corresponded to the level of phytoplankton bloom (> 1 mg/m3 and > 30 mg C/m3, respectively). The biomass dominance of diatom Thalassiosira angulata was first noted in vast area of the White Sea, its abundance and biomass in the surface layer reached 24·103 cells/l and 34.56 mg C/m3, respectively. Still higher values were noted at one of the coastal stations at a depth of 3 m (179·103 cells/l and 258 mg C/m3). The main factors responsible for the spatial variability of the T. angulata biomass were the stability of the water column (positive relation) and salinity (negative relation).
About the Authors
I. G. Radchenko
Lomonosov Moscow State University
Russian Federation
Russian Federation
Leninskiye gory 1–12, Moscow, 119234
Department of Hydrobiology, School of Biology
V. P. Shevchenko
P.P. Shirshov Institute of Oceanology, Russian Academy of Sciences
Russian Federation
Nakhimovskii prosp. 36, Moscow, 117997
Russian Federation
Nakhimovskii prosp. 36, Moscow, 117997
M. D. Kravchishina
P.P. Shirshov Institute of Oceanology, Russian Academy of Sciences
Russian Federation
Nakhimovskii prosp. 36, Moscow, 117997
Russian Federation
Nakhimovskii prosp. 36, Moscow, 117997
V. V. Il’inskii
Lomonosov Moscow State University
Russian Federation
Russian Federation
Leninskiye gory 1–12, Moscow, 119234
Department of Hydrobiology, School of Biology
A. P. Georgiev
Northern Water Problems Institute of the Karelian Research Centre, Russian Academy of Sciences
Russian Federation
Alekxandr Nevsky ul. 50, Petrozavodsk, Republic of Karelia, 163061
Russian Federation
Alekxandr Nevsky ul. 50, Petrozavodsk, Republic of Karelia, 163061
A. V. Tolsticov
Northern Water Problems Institute of the Karelian Research Centre, Russian Academy of Sciences
Russian Federation
Alekxandr Nevsky ul. 50, Petrozavodsk, Republic of Karelia, 163061
Russian Federation
Alekxandr Nevsky ul. 50, Petrozavodsk, Republic of Karelia, 163061
A. L. Tchultsova
North-Western Department of P.P. Shirshov Institute of Oceanology, Russian Academy of Sciences
Russian Federation
Severnaya Dvina nab. 112/3, Arkhangelsk, 163061
Russian Federation
Severnaya Dvina nab. 112/3, Arkhangelsk, 163061
L. V. Ilyash
Lomonosov Moscow State University
Russian Federation
Russian Federation
Leninskiye gory 1–12, Moscow, 119234
Department of Hydrobiology, School of Biology
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For citations:
Radchenko I.G., Shevchenko V.P., Kravchishina M.D., Il’inskii V.V., Georgiev A.P., Tolsticov A.V., Tchultsova A.L., Ilyash L.V. THE FIRST RECORD OF THALASSIOSIRA ANGULATA (BACILLARIOPHYCEAE) BLOOM IN THE WHITE SEA: SPATIAL DISTRIBUTION AND CONCOMITANT SPECIES. Vestnik Moskovskogo universiteta. Seriya 16. Biologiya. 2018;73(4):263-268. (In Russ.)
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