Production Potential of the Chernavka Salt River (Elton Region)

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发表日期：

2024年4月2日

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T. A. Kanapatskiy,
O. S. Samylina,
L. V. Golovatyuk,
I. I. Rusanov,
E. E. Zakharova,
V. V. Kevbrin,
T. D. Zinchenko,
N. V. Pimenov

摘要

Abstract

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.