Structure and productivity of the phytoplankton community in the southwestern Kara Sea in early summer

Author:

Druzhkova Elena I.1ORCID,Venger Marina P.1ORCID,Sazhin Andrey F.2ORCID

Affiliation:

1. Murmansk Marine Biological Institute RAS, Murmansk, Russia

2. Shirshov Institute of Oceanology RAS, Moscow, Russia

Abstract

As a result of research conducted in July 2018 in the southwestern part of the Kara Sea, it was revealed that during the period of the beginning of the seasonal ice shift, the pelagic phytocen was at the stage of ice/marginal bloom, which was realized within a single spatiotemporal field. Distinctive features of the organization of the community of pelagic microalgae were a characteristic set of dominants and a mosaic structure of the pelagial. The mosaic pattern of marine phytoplankton is determined by the interaction between physical environmental factors and the biological activity of microalgae populations. In this case, the pelagic phytocene was a network of short-lived basins limited by local frontal sections with the predominant development of individual species/species complexes against the background of the functioning of the basic cluster of early spring cryophilic diatoms.

Publisher

Farwater LLC

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