State of heterotrophic bacterioplankton of Yenisei estuary and the zone of Ob-Yenisei discharge

Mosharova, I.V.; Il'inskiii, V.V.; Mosharov, S.A.

Авторы: Mosharova I.V., Il'inskiii V.V., Mosharov S.A.
Журнал: Water Resources
Том: 43
Номер: 2
Год издания: 2016
Издательство: Maik Nauka/Interperiodica Publishing
Местоположение издательства: Russian Federation
Первая страница: 341
Последняя страница: 352
DOI: 10.1134/S0097807816020093
Аннотация: Abstract—In September 2011, variations of the total abundance of bacteria were studied, including, for the first time, the abundance of bacteria with intact membranes and active electron transport chains, as well as chlorophyll a concentrations and some hydrological and hydrochemical characteristics of water in Yenisei estuary and the zone of Ob–Yenisei river discharge. The study found abundant, viable, and actively function ing bacterioplankton to exist in the region. The absolute values of all microbiological characteristics were found to decrease with the distance from the freshened waters of Yenisei estuary toward the seawater of the Ob–Yenisei river discharge, while the percentage of bacteria with intact membranes and actively functioning microorganisms in bacterioplankton increased in the same direction. Positive correlations were found to exist between the values of all examined microbiological characteristics and the concentration in water of chloro phyll a, silicium, organic nitrogen, and oxygen, as well as water temperature. The same biological character istics showed negative correlations with water salinity and phosphates. The spatial distribution of bacteria in the examined water body was supposed to be due mostly to the intensity of hydrodynamic processes, rather than the biogenic matter content of water.
Добавил в систему: Мошарова Ирина Викторовна

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State of heterotrophic bacterioplankton of Yenisei estuary and the zone of Ob-Yenisei dischargeстатья

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