Diatoms from Hot Springs of the Kamchatka Peninsula (Russia)

Никулина, Т. В.; Kalitina, E. G.; Kharitonova, N. A.; Челноков, Г. А.; Vakh, E. A.; Grishchenko, Olga V.

doi:10.1002/9781119370741.ch14

Cited by 5 publications

(8 citation statements)

References 10 publications

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“…Information on the algae of Kamchatka’s volcano soils is limited and based on a sporadic sampling. The numerous hot springs associated with volcanic activity have traditionally attracted a great deal of attention from researchers [ 25 , 26 , 27 , 28 ]. At the same time, there is evidence that volcanic soils can harbor a significant diversity of algae and cyanobacteria [ 5 , 29 ].…”

Section: Introductionmentioning

confidence: 99%

Diatoms in Volcanic Soils of Mutnovsky and Gorely Volcanoes (Kamchatka Peninsula, Russia)

et al. 2021

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Volcanic activity has a great impact on terrestrial ecosystems, including soil algae in general and diatoms in particular. To understand the influence of volcanoes on the biodiversity of diatoms, it is necessary to explore the flora of these microorganisms in regions with high volcanic activity, which includes the Kamchatka peninsula. During the study on diatoms in the soils of Mutnovsky and Gorely volcanoes of Kamchatka, 38 taxa were found. The Mutnovsky volcano diatom flora was more diverse and accounted for 35 taxa. Eunotia curtagrunowii, Humidophila contenta, and Pinnularia borealis were the dominant species. In the Gorely volcano, only 9 species were identified, with Caloneis bacillum and Pinnularia borealis prevailing in the samples. Overall, the genera Pinnularia and Eunotia were the most diverse in the studied area. The diatom flora of the studied volcanoes comprises mostly cosmopolitan small-sized taxa with a wide range of ecological plasticity. Our data confirm the high adaptive potential of diatom algae and add new knowledge about the ecology and biogeography of this group of microorganisms.

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Section: Introductionmentioning

confidence: 99%

Diatoms in Volcanic Soils of Mutnovsky and Gorely Volcanoes (Kamchatka Peninsula, Russia)

et al. 2021

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“…To find out which diatom flora develops in similar conditions, we compared the diatoms of DMV sediments and thermal springs of the Kamchatka Peninsula, Sakhalin Island, and the Kuril Islands (Kunashir, Shiashkotan, Yankich), studied by T. Nikulina with co-authors [16,17,[19][20][21] and L. Ryabushko & V. Tarasov [18]. The comparison showed that a noticeable number of identical species with DMV diatoms are found only in diatom assemblages of thermal springs located on the sea coast.…”

Section: Discussionmentioning

confidence: 99%

“…27-Epithemia turgida. Brackish water (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)14,15,17,19,20,26), euryhaline (13,18,23). and freshwater (16,(21)(22)24,25,27) diatoms.…”

Section: Diatom Assemblagesmentioning

confidence: 99%

“…More data on the algal flora of geothermal springs in Kamchatka Peninsula and the Kuril Islands are associated with active magmatic volcanism. Review and analysis of research on these sources has shown that up to 95% of the microalgae flora are diatoms [16,17,[19][20][21][26][27][28]. The algal flora of geothermal springs consists mainly of freshwater, cold-water species that have adapted to high temperatures, but at a water temperature of more than 60 • C, the species composition of the algal community is significantly depleted.…”

Section: Introductionmentioning

confidence: 99%

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Diatom Assemblages from the Daginsky Mud Volcano Sediments (Eastern Sakhalin) and Their Implication

Tsoy,

Sorochinskaya

2023

Quaternary

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Diatom assemblages in mud volcanoes are quite rare and are poorly studied. The finding of a rich diatom flora in the sediments of the Daginsky Mud Volcano (DMV), located in the tidal zone of the Nyisky Bay of the Sea of Okhotsk, is of interest to study the conditions for the formation of host sediments in the zone of influence of various extreme factors, such as outflows of gases and water–mud mass, thermal springs, and tides. For this purpose, the taxonomical composition of diatom assemblages and concentration of diatoms in DMV sediments were studied. A comparison was made with the diatoms of geothermal springs of the Russian Far East associated with volcanic activity, and the stratigraphic occurrence of the found extinct diatoms was analyzed, which is important for determining their source and the age of the mud volcano roots. Diatom assemblages from DMV sediments are mainly characterized by the predominance of Metascolioneis tumida, Paralia sulcata, Odontella aurita, Pinnunavis yarrensis, Petroneis marina, Cocconeis scutellum, and Navicula digitoradiata. They consist of diatoms of different biotopes and extinct species. The diversity and abundance of brackish water and marine species indicates the predominant influence of sea waters on the formation of DMV sediments. The diverse freshwater species were mainly introduced into sediments with river runoff, but it is likely that some of these, such as the cosmopolitan alkaliphilic species, are inhabitants of geothermal springs. The presence of extinct species from the underlying Neogene sediments from where they were carried with gas–water–mud masses is the most typical for diatom assemblages of the DMV.

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“…«Российскими микробиологами были получены приоритетные данные об активности и составе сообществ лито-и органотрофных термофильных бактерий и архей некоторых высокотермальных источников Камчатки» [4][5][6]. Основные микробиологические исследования выполнены в кальдере Вулкана Узон, на Восточном термальном поле, а изучение микроорганизмов в термальных источниках Горячая сопка практически не проводилось [7]. В связи с тем, что данные по составу микроорганизмов в термах Горячая сопка в литературе не представлены, целью работы было изучить распределение, состав и численность основных экофизиологических групп бактерий, участвующих в основных биогеохимических циклах элементов в термальных источниках Горячая сопка, Камчатка.…”

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Composition of Cultivated Bacteria of Different Physiological Groups and Their Number in Thermal Sources Goryachaya Sopka, Kamchatka

Lebedeva¹,

Kharitonova²,

Bragin³

et al. 2020

УСЕ (ACNR)

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Diatoms from Hot Springs of the Kamchatka Peninsula (Russia)

Cited by 5 publications

References 10 publications

Diatoms in Volcanic Soils of Mutnovsky and Gorely Volcanoes (Kamchatka Peninsula, Russia)

Diatoms in Volcanic Soils of Mutnovsky and Gorely Volcanoes (Kamchatka Peninsula, Russia)

Diatom Assemblages from the Daginsky Mud Volcano Sediments (Eastern Sakhalin) and Their Implication

Composition of Cultivated Bacteria of Different Physiological Groups and Their Number in Thermal Sources Goryachaya Sopka, Kamchatka

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