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Title: Long-term dynamics of under-ice community of Baikal phytoplankton and climate change
Author(s): SHIMARAEVA Svetlana, IZMESTYEVA Lyubov, SILOW Eugene
Annotation: The under-ice complex of alga species of the Lake Baikal is characterized by the explosive under-ice development of endemic diatom algae, with periodical extremely high yields. We have analyzed the long-term variability of the most important representatives of the under-ice complex of alga such as Aulacoseira baicalensis (K. Meyer) Simonsen, Aulacoseira skvortzowii Edmund, Stormer, Taylor, Stephanodiscus meyerii Genkal et Popovsk., Cyclotella baicalensis (K.Meyer) Skv., Cyclotella minuta Antip., Gymnodinium baicalense Antip. According to long-term data in 1970 – 1990th there were no high biomasses of Aulacoseira baicalensis, Aulacoseira skvortzowii, though they presented in plankton. Also there were no mass development of Stephanodiscus meyerii. At the same time there were years with mass development of Nitzschia acicularis under ice. Such events are not observed in our century, while Aulacoseira rich years returned. The analysis of data of long-term (1940–1990th) observations after phytoplankton proved demonstrated the presence of some succession in spring phytoplankton, less expressed by biomass then by number, i.e. there are less large cell algae and more small cell.
Bibliographical description: Shimaraeva S. Long-term dynamics of under-ice community of Baikal phytoplankton and climate change / S. Shimaraeva, L. Izmestyeva, E. Silow // 13th World Lake Conference. 2009. http://lake.baikal.ru/ru/library/publication.html?action=show&id=638
Publication's type: статья
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