Peculiarities of the variability of the intensity of the luminous plankton community in the coastal area of the Black Sea in the spring and autumn periods
A.B. Polonsky1,2, E.B. Mel’nikova1, A.N. Serebrennikov1
1Natural and Technical Systems Institute of the RAS, Sevastopol, Russia
2Sevastopol State University, Sevastopol, Russia
Keywords: вертикальное распределение светящихся гидробионтов, биолюминесценция, сезонные изменения, спутниковая информация, циркуляция вод Черного моря, мезомасштабные вихри, vertical profile of hydrobiont bioluminescence intensity, bioluminescent lighting, seasonal changes, satellite information, Black Sea circulation, mesoscale eddies
Abstract
Variability of the hydrobiont bioluminescence intensity in the spring and autumn periods along the coast of Crimea and its causes are analyzed based on expedition data and satellite information. It is noted that synoptic and mesoscale eddy processes have a significant impact on the vertical distribution of the intensity of the luminescence of hydrobionts, and they must be taken into account when analyzing the seasonal variability of bioluminescence parameters. The concept of integrated intensity of luminescence of hydrobionts (IILH) is suggested, which allows us to estimate the total hydrobiont biomass in the depth range, under study. It was found that the average IILH in the northern part of the Black Sea in the autumn period was more than 10 times higher than in spring. It is noted that the mesoscale eddy processes have the greatest impact on the IILH in the area of the continental slope area.
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