TITLE:
The Diversity of Chrysophycean Algae in an Arctic Zone of River and Sea Water Mixing, Russia
AUTHORS:
Alena D. Firsova, Anna Yu Bessudova, Larisa M. Sorokovikova, Irina V. Tomberg, Yelena V. Likhoshway
KEYWORDS:
Chrysophycean Algae, Salinity, Arctic Zone
JOURNAL NAME:
American Journal of Plant Sciences,
Vol.6 No.15,
September
30,
2015
ABSTRACT: According to the results of studies in the region of lower Yenisei River to the Kara Sea shelf in
September 2009, the flora of chrysophyte algae in the zone of river and sea water mixing comprises
43 species of the classes Chrysophyceae and Synurophyceae. Most of them are cosmopolitan
and widespread, but four rare species have also been recorded. The most frequent species are
Synura petersenii f. petersenii, S. petersenii f. kufferathii, Spiniferomonas takahashii, Mallomonas
acaroides, and M. crassisquama. The composition of chrysophyte flora in the study region is similar
to that in some lakes of the Taimyr Peninsula. It has been found that the diversity of chrysophytes
in the zone of river and sea water mixing depends on water salinity, with a group of species
occurring at increased salinity levels. It includes Chrysosphaerella coronacircumspina (5.2‰),
Kephyrion spirale (5.2‰) and Mallomonas crassisquama (8‰). These data contribute to knowledge
of how the distribution of chrysophytes responds to changes in ecological conditions such as
water salinity, turbidity, pH, and concentrations of oxygen and mineral phosphorus.