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Atmospheric and Oceanic Optics

2018 year, number 4

Regional peculiarities of the bioluminescent lighting and chlorophyll a concentration in the Black Sea phytoplankton

A.B. Polonsky1,2, E.B. Mel'nikova1, A.N. Serebrennikov1, Yu.N. Tokarev3
1Natural and Technical Systems Institute of the RAS, 28, Lenina St., Sevastopol, 299011, Russia
2"Moscow State Lomonosov University" in the city of Sevastopol, 299001, Sevastopol, st. Heroes of Sevastopol, 7
3The A.O. Kovalevsky Institute of Marine Biological Research of RAS, 299011, Sevastopol, Nakhimov ave., 2
Keywords: вертикальное распределение интенсивности свечения фитопланктона, концентрация хлорофилла а, биолюминесценция, спутниковая информация, геострофические течения, циркуляция вод Черного моря, мезомасштабные вихри, vertical profile of phytoplankton glow intensity, chlorophyll a concentration, bioluminescent lighting, satellite information, geostrophic currents, Black Sea circulation, mesoscale eddies

Abstract

Variability of the profiles of bioluminescent lighting and chlorophyll  a concentration along the coastal zone of the Crimea and its causes are analyzed using the data of two expeditions and satellite data. It is shown that the bioluminescent lighting and chlorophyll  a concentration are minimal in a vicinity of the deep-sea cyclonic eddy, where the upwelling occurred and the upper mixed layer depth was as small as 20 m. Minima of bioluminescent lighting and chlorophyll  a concentration were observed in the shallow area which is rich in biota.