Structure and dynamics of phytoplankton in the Oka River mouth at the beginning of the 21th century

被引:8
|
作者
Okhapkin, A. G. [1 ]
Genkal, S. I. [2 ]
Scharagina, E. M. [1 ]
Vodeneeva, E. L. [1 ]
机构
[1] Lobachevsky State Univ Nizhnii Novgorod, Nizhnii Novgorod 603600, Russia
[2] Russian Acad Sci, Papanin Inst Biol Inland Waters, Borok 152742, Yaroslavl Oblas, Russia
关键词
phytoplankton; composition; seasonal dynamics; centric diatoms; Oka River;
D O I
10.1134/S1995082914040142
中图分类号
Q17 [水生生物学];
学科分类号
071004 ;
摘要
Data on the species composition, abundance, and biomass of phytoplankton in the lower reaches of the Oka River are presented. The floristic and cenotic role of centric diatoms is shown. The dynamics of composition and abundance of some Centrophyceae species is analyzed using light and electron microscopy. The expansion of brackish-water diatoms has increased, but the eutrophic status of the stream is maintained against the background of drastic changes in abiotic conditions in the river at the beginning of the 21th century.
引用
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页码:357 / 365
页数:9
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