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Effect of phytoplankton adaptation on the distribution of its biomass and chlorophyll a concentration in the surface layer of the Black Sea

Liudmila Stelmakh
Liudmila Stelmakh
 y 
Tatiana Gorbunova
Tatiana Gorbunova
   | 10 dic 2019
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Article Category: Research Article
Publicado en línea: 10 dic 2019
Páginas: 404 - 414
Recibido: 22 mar 2019
Aceptado: 15 may 2019
DOI: https://doi.org/10.2478/ohs-2019-0035
© 2019 Faculty of Oceanography and Geography, University of Gdańsk, Poland
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Figure 1

Location of the sampling sites in the Black Sea: a – September–October 2005; b – October 2010; c – August 2011; d – May 2013; e – depth map
Location of the sampling sites in the Black Sea: a – September–October 2005; b – October 2010; c – August 2011; d – May 2013; e – depth map

Figure 2

Average intensity of solar radiation in the upper mixed layer, nitrate and ammonium concentration, C:Chl a ratio, phytoplankton biomass and chlorophyll a concentration in the surface layer of the Black Sea in September–October 2005
Average intensity of solar radiation in the upper mixed layer, nitrate and ammonium concentration, C:Chl a ratio, phytoplankton biomass and chlorophyll a concentration in the surface layer of the Black Sea in September–October 2005

Figure 3

Average intensity of solar radiation in the upper mixed layer, nitrate and ammonium concentration, C:Chl a ratio, phytoplankton biomass and chlorophyll a concentration in the surface layer of the Black Sea in October 2010
Average intensity of solar radiation in the upper mixed layer, nitrate and ammonium concentration, C:Chl a ratio, phytoplankton biomass and chlorophyll a concentration in the surface layer of the Black Sea in October 2010

Figure 4

Average intensity of solar radiation in the upper mixed layer, nitrate and ammonium concentration, C:Chl a ratio, phytoplankton biomass and chlorophyll a concentration in the surface layer of the Black Sea in August 2011
Average intensity of solar radiation in the upper mixed layer, nitrate and ammonium concentration, C:Chl a ratio, phytoplankton biomass and chlorophyll a concentration in the surface layer of the Black Sea in August 2011

Figure 5

Average intensity of solar radiation in the upper mixed layer, nitrate and ammonium concentration, C:Chl a ratio, phytoplankton biomass and chlorophyll a concentration in the surface layer of the Black Sea in May 2013
Average intensity of solar radiation in the upper mixed layer, nitrate and ammonium concentration, C:Chl a ratio, phytoplankton biomass and chlorophyll a concentration in the surface layer of the Black Sea in May 2013

C:Chl a ratio, contribution of dinoflagellates (BDinofl.) and diatoms (BBacillar.) to the total phytoplankton biomass, the average volume of their cells (Vaver.), and some abiotic parameters of the surface layer of the Black Sea

C:Chl a BDinofl . [BBacillar.] Vaver N-NO3 [N-NH] 4 IUML
(mg mg−1) (%) (μm3) (μM) (E m−2 day−1)
September–October 2005 (n = 20)
52 ± 9 38 ± 4 [60 ± 6] 6200 ± 1060 1.15 ± 0.30 [0.15 ± 0.02] 5.0 ± 1.0
200 ± 23 17 ± 2 [72 ± 6] 34 300 ± 4800 0.12 ± 0.02 [0.11 ± 0.03] 11.8 ± 1.4
October 2010 (n = 26)
60 ± 9 19 ± 6 [57 ± 8] 1950 ± 500 1.16 ± 0.26 [1.19 ± 0.20] 5.0 ± 0.5
171 ± 23 50 ± 11 [14 ± 10] 2170 ± 620 0.32 ± 0.05 [0.57 ± 0.12] 11.0 ± 0.4
August 2011 (n = 24)
107 ± 8 30 ± 6 [61 ± 4] 1500 ± 100 0.11 ± 0.01 [1.07 ± 0.15] 16.0 ± 0.7
214 ± 22 55 ± 8 [45 ± 5] 4600 ± 600 0.11 ± 0.03 [0.57 ± 0.01] 27.0 ± 0.5
May 2013 (n = 18)
104 ± 9 34 ± 4 [16 ± 6] 140 ± 16 0.18 ± 0.02 [1.20 ± 0.10] 24.0 ± 1.2
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