Production Potential of the Chernavka Salt River (Elton Region)

Мұқаба

Дәйексөз келтіру

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Аннотация

Depending on the season, the primary production of planktonic communities determined by radiotracer analysis varied within a broad range, from 6 to 314 µg C/(L h). Primary production in cyanobacterial mats was 4.2‒10.9 × 103 µg C/(dm3 h), and Chl a content varied from 6‒13 to 132‒140 mg Chl a/m2. For the plankton, the highest values were revealed in summer (25‒46 mg Chl a/m3), with the maximum in August (223 mg Chl a/m3. High abundance of bacterioplankton (0.3‒7.4 × 106 cells/mL) and massive growth of diatoms (0.15 × 106 cells/mL) with predominance of the genus Chaetoceros were found. Sulfate reduction rates varied from 0.037 µmol S/(dm3 h) in the upper reach to 61.87 µmol S/(dm3 h) in the river mouth.

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Авторлар туралы

T. Kanapatskiy

Winogradsky Institute of Microbiology, Research Center of Biotechnology, Russian Academy of Sciences

Хат алмасуға жауапты Автор.
Email: timkanap@yandex.ru
Ресей, Moscow, 119071

O. Samylina

Winogradsky Institute of Microbiology, Research Center of Biotechnology, Russian Academy of Sciences

Email: timkanap@yandex.ru
Ресей, Moscow, 119071

L. Golovatyuk

Institute of Ecology of Volga Basin, Russian Academy of Sciences; Papanin Institute for Biology of Inland Waters, Russian Academy of Sciences

Email: timkanap@yandex.ru
Ресей, Tolyatti, 445003; Borok, 152742

I. Rusanov

Winogradsky Institute of Microbiology, Research Center of Biotechnology, Russian Academy of Sciences

Email: timkanap@yandex.ru
Ресей, Moscow, 119071

E. Zakharova

Winogradsky Institute of Microbiology, Research Center of Biotechnology, Russian Academy of Sciences

Email: timkanap@yandex.ru
Ресей, Moscow, 119071

V. Kevbrin

Winogradsky Institute of Microbiology, Research Center of Biotechnology, Russian Academy of Sciences

Email: timkanap@yandex.ru
Ресей, Moscow, 119071

T. Zinchenko

Institute of Ecology of Volga Basin, Russian Academy of Sciences

Email: timkanap@yandex.ru
Ресей, Tolyatti, 445003

N. Pimenov

Winogradsky Institute of Microbiology, Research Center of Biotechnology, Russian Academy of Sciences

Email: timkanap@yandex.ru
Ресей, Moscow, 119071

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2. Fig. 1. Characteristics of microbial communities: a — integral primary production (PP) in plankton (articles 1-4) and cyanobacterial communities (CBS) for Article 4; b — integral values of dark carbon dioxide assimilation (TAU) in the horizon of 0-20 cm; c — total number of bacterioplankton (OCHB); d — biomass of bacterioplankton (b/pl); d — the total number of diatoms (OCD); e — the integral values of sulfate reduction (CP) in the horizon of 0-20 cm.

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