<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "JATS-journalpublishing1-3.dtd">
<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">sevin</journal-id><journal-title-group><journal-title xml:lang="ru">ПОВОЛЖСКИЙ ЭКОЛОГИЧЕСКИЙ ЖУРНАЛ</journal-title><trans-title-group xml:lang="en"><trans-title>Povolzhskiy Journal of Ecology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1684-7318</issn><issn pub-type="epub">2541-8963</issn><publisher><publisher-name>Федеральное государственное бюджетное учреждение науки Институт проблем экологии и эволюции им. А. Н. Северцова РАН; Товарищество научных изданий КМК.</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.35885/1684-7318-2021-2-146-162</article-id><article-id custom-type="elpub" pub-id-type="custom">sevin-261</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Статьи</subject></subj-group></article-categories><title-group><article-title>Пространственно-временное распределение инфузорий планктона Куйбышевского водохранилища в районе Климовской узкости</article-title><trans-title-group xml:lang="en"><trans-title>Spatiotemporal distribution of planktonic ciliates in the Kuybyshev water reservoir in the area of Klimovskaya narrowing</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4486-9416</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Быкова</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Bykova</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Быкова Светлана Викторовна</p><p>445003, г. Тольятти, ул. Комзина, д. 10</p></bio><bio xml:lang="en"><p>Svetlana V. Bykova</p><p>10 Komzina St., Togliatti 445003</p></bio><email xlink:type="simple">svbykova514@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7546-7519</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Андреева</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Andreeva</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Андреева Вера Андреевна</p><p>445003, г. Тольятти, ул. Комзина, д. 10</p></bio><bio xml:lang="en"><p>Vera A. Andreeva</p><p>10 Komzina St., Togliatti 445003</p></bio><email xlink:type="simple">begema@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Самарский федеральный исследовательский центр РАН, Институт экологии Волжского бассейна РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Samara Federal Research Scientific Centre of the Russian Academy of Sciences, Institute of Ecology of Volga River Basin of Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>09</day><month>08</month><year>2021</year></pub-date><volume>0</volume><issue>2</issue><fpage>146</fpage><lpage>162</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Быкова С.В., Андреева В.А., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Быкова С.В., Андреева В.А.</copyright-holder><copyright-holder xml:lang="en">Bykova S.V., Andreeva V.A.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://sevin.elpub.ru/jour/article/view/261">https://sevin.elpub.ru/jour/article/view/261</self-uri><abstract><p>Предпринята попытка связать изменения количественных характеристик сообщества свободноживущих инфузорий планктона и характера их вертикального распределения с режимом работы ГЭС в водохранилище. Невысокие значения численности (8 – 1560 тыс. экз./м3) и биомассы (0.1 – 66.9 мг/м3) инфузорий в толще воды и довольно широкий диапазон их варьирования в водохранилище обусловлены, вероятно, колебательным характером гидрологического режима в условиях зарегулированности. Вертикальное распределение свободноживущих инфузорий в планктоне приплотинного участка Куйбышевского водохранилища исследовалось в разное время суток в разные дни недели. Виды распределены во всей толще воды до дна с некоторым предпочтением поверхностных (0 – 2 м) и средних (4 – 10 м) слоев. Четкая привязанность отдельных видов к определенным слоям в условиях гомотермии отсутствует. Их незначительное преобладание на отдельных горизонтах обусловлено биологическими особенностями видов (например, перитрихи на ценобиях водорослей у поверхности), уходом от «пятен цветения» и т.д. Данных в пользу вертикальных миграций или «турбулентного переноса» пока не выявлено. Влияние недельного типа режима регулирования работы Жигулевской ГЭС, при котором в конце рабочей недели, вероятно, уменьшается амплитуда колебания многих гидрологических параметров, проявляется в увеличении в это время численности и биомассы инфузорий в планктоне. Показано, что характер внутрисуточного изменения усредненных характеристик сообщества инфузорий в толще воды в среднем одинаков для варианта сообщества в рабочие дни и находится в противофазе с изменением численности сообщества в выходные дни: максимум численности в рабочие дни регистрировался в вечернее время (20.00), а в выходные – днем (14.00).</p></abstract><trans-abstract xml:lang="en"><p>The paper attempts to link changes in quantitative characteristics of the community of free-living planktonic ciliates and the nature of their vertical distribution with the operation mode of the hydroelectric power station in the reservoir. Low values of the abundance (8–1,560 thousand cells / m3) and biomass (0.1–66.9 mg / m3) of ciliates in the water column, and a fairly wide range of their variation in the reservoir are probably due to the oscillatory nature of the hydrological regime in the regulated river conditions. The vertical distribution of free-living planktonic ciliates of the near-dam section of the Kuibyshev reservoir was studied at all times of the day on all days of the week. The species were distributed throughout the water column to the bottom with some preference for the surface (0–2 m) and medium (4–10 m) layers. There was no clear attachment of individual species to certain layers in the conditions of homothermy. The preference for certain horizons is due to some biological characteristics of the species (for example, peritriches on the coenobia of algae in the surface layers), departure from “blooming spots”, etc. No data in favor of vertical migrations or “turbulent transport” has yet been revealed. The influence of the weekly regime of regulation of the Zhigulevskaya HPS, in which at the end of the working week, the fluctuation amplitude of many hydrological parameters probably decreases, is manifested in an increase in the abundance and biomass of planktonic ciliates at this time.The nature of the daily change in the average ciliates abundance in the water column was the same for a variant of the community in working days and was in antiphase with the change in the community abundance on weekends, namely: the maximum number on working days and on weekends was recorded in the evening (20.00) and in the daytime (14.00), respectively.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>инфузории</kwd><kwd>вертикальное распределение</kwd><kwd>суточная и недельная динамика</kwd><kwd>режим работы гидроэлектростанции (ГЭС)</kwd><kwd>водохранилище</kwd></kwd-group><kwd-group xml:lang="en"><kwd>ciliates</kwd><kwd>vertical distribution</kwd><kwd>daily and weekly dynamics</kwd><kwd>hydroelectric power station (HPS) operation mode</kwd><kwd>reservoir</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках государственного задания Института экологии Волжского бассейна РАН (№ AAAA-A17-117112040039-7 и AAAA-A17-117112040040-3).</funding-statement><funding-statement xml:lang="en">The work was carried out within the framework of the State Task of the Institute of Ecology of the Volga River Basin of the Russian Academy of Sciences (No. AAAA-A17-117112040039-7 and AAAA-A17-117112040040-3).</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Агамалиев Ф. Г. Инфузории Каспийского моря : Систематика, экология, зоогеография. Л. : Наука : Ленингр. отд-ние, 1983. 253 с.</mixed-citation><mixed-citation xml:lang="en">Agaamaliev F. G. Infuzorii Kaspiiskogo moria: Sistematika, ekologiia, zoogeografiia [Ciliates of the Caspian Sea: Systematics, Ecology, Zoogeography]. Leningrad, Nauka Publ., 1983. 232 p. (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Агамалиев Ф. Г. Разнообразие и экология планктонных инфузорий Каспийского моря // Жизнь Земли. 2017. Т. 39, № 2. С. 139 – 146.</mixed-citation><mixed-citation xml:lang="en">Agamaliev F. G. Planktonic ciliates of the Caspian sea. Zhizn' Zemli, 2017, vol. 39, no. 2, pp. 139–146 (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Гис-портал центра регистрации и кадастра : Информационная система по водным ресурсам и водному хозяйству бассейнов рек России [Электронный ресурс]. URL: http://gis.vodinfo.ru (дата обращения 28.01.2021).</mixed-citation><mixed-citation xml:lang="en">Gis-portal tsentra registratsii i kadastra: Informatsionnaia sistema po vodnym resursam i vodnomu khoziaistvu basseinov rek Rossii [Elektronnyi resurs] [Gis-portal of the Registration and Cadastre Center: Information System on Water Resources and Water Management of Russian River Basins. Electron. resource]. Available at: http://gis.vodinfo.ru (accessed 28 January 2021) (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Дроботов А. В. Пространственная структура и несинхронные вертикальные миграции зоопланктона в стратифицированном меромиктическом озере : дис. … канд. биол. наук. Красноярск, 2014. 135 c.</mixed-citation><mixed-citation xml:lang="en">Drobotov A. V. Spatial Structure and Asynchronous Vertical Migrations of Zooplankton in a Stratified Meromictic Lake. Diss. Cand. Sci. (Biol.). Krasnoyarsk, 2014. 135 p. (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Жариков В. В. Специфика водохранилищ Волги как среды обитания гидробионтов (на примере свободноживущих инфузорий) // Теоретические проблемы экологии и эволюции : Третьи Любищевские чтения. Тольятти : ИЭВБ РАН, 2000. С. 64 – 72.</mixed-citation><mixed-citation xml:lang="en">Zharikov V. V. Specificity of Volga reservoirs as a habitat for aquatic organisms (on the example of free-living ciliates). Teoreticheskiye problemy ekologii i evolyutsii [Theoretical Problems of Ecology and Evolution]. Togliatti, Institut ekologii Volzhskogo basseina RAN Publ., 2000, pp. 64–72 (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Жариков В. В. Состав, экология и распределение инфузорий // Экология озера Севан в период повышения его уровня. Махачкала : Наука Дагестанского науч. центра РАН, 2010. С. 134 – 167.</mixed-citation><mixed-citation xml:lang="en">Zharikov V. V. Composition, ecology and distribution of ciliates. In: Ekologiya ozera Sevan v period povysheniya yego urovnya [Ecology of Lake Sevan During the Period of Its Level Increase]. Makhachkala, Nauka Dagestanskogo nauchnogo tsentra RAN Publ., 2010, pp. 134 – 167 (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Жариков В. В., Ротарь Ю. М. К оценке реакции свободноживущих инфузорий водохранилищ Средней и Нижней Волги на изменения некоторых факторов среды // Биоиндикация : теория, методы, приложения / под ред. Г. С. Розенберга. Тольятти : ИЭВБ РАН, 1994. С. 205 – 225.</mixed-citation><mixed-citation xml:lang="en">Zharikov V. V., Rotar Yu. M. To an assessment of the reaction of free-living ciliates of reservoirs in the Middle and Lower Volga to changes in some environmental factors. In: Bioindikatsiia: teoriia, metody, prilozheniia. Pod red. G. S. Rozenberga [G. S. Rosenberg, ed. Bioindication: Theory, Methods, Applications]. Togliatti, Institut ekologii Volzhskogo basseina RAN Publ., 1994, pp. 205–225 (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Каплин В. М. К экологии пелагических инфузорий Байкала // Известия Биологогеографического научно-исследовательского института при Иркутском государственном университете. 1970. Т. 23, вып. 1. С. 104 – 117.</mixed-citation><mixed-citation xml:lang="en">Kaplin V. M. To the ecology of pelagic ciliates of Lake Baikal. Bulletin de l'Institut Scientifibue de Biologie et de Geographie a l'Universite d'Irkoutsk, 1970, vol. 23, no. 1, pp. 104–117 (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Кипрушина К. Н. Сезонная динамика вертикального распределения зоопланктона открытой части Южного Байкала (район Больших Котов) // Известия Иркутского государственного университета. Сер. Биология. Экология. 2009. Т. 2, № 1. С. 39 – 44.</mixed-citation><mixed-citation xml:lang="en">Kiprushina K. N. Seasonal dynamics of vertical distribution of zooplankton at the open part of the Southern Baikal (Bolshiye Koty site). The Bulletin of Irkutsk State University, Ser. Biology. Ecology, 2009, vol. 2, no. 1, pp. 39–44 (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Мамаева Н. В. Инфузории бассейна Волги: Экологический очерк. Л. : Наука. Ленингр. отд-ние, 1979. 150 с.</mixed-citation><mixed-citation xml:lang="en">Mamaeva N. V. Infuzorii basseina Volgi: Ekologicheskii ocherk [Ciliates of the Volga River Basin: An Ecological Essay]. Leningrad, Nauka Publ., 1979. 150 p. (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Оболкина Л. А. Планктонные инфузории озера Байкал. Новосибирск : Наука. Сиб. отдние, 2015. 231 с.</mixed-citation><mixed-citation xml:lang="en">Obolkina L. A. Planktonic Ciliates of Lake Baikal. Novosibirsk, Nauka Publ., 2015. 231 p. (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Рахуба А. В. Экспериментальные исследования суточного режима водообмена в пограничной зоне слияния р. Сок и Саратовского водохранилища // Известия Самарского научного центра РАН. 2012. Т. 14, № 1 – 3. С. 784 – 790.</mixed-citation><mixed-citation xml:lang="en">Rakhuba A. V. The experimental research of the daily mode of water exchange in the border zone where the river Sok and the Saratov reservior merge. Izvestia of Samara Scientific Center of the Russian Academy of Sciences, 2012, vol. 14, no. 1–3, pp. 784–790 (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Ротарь Ю. М. Планктонные инфузории Куйбышевского водохранилища : дис. … канд. биол. наук. СПб., 1995. 161 с.</mixed-citation><mixed-citation xml:lang="en">Rotar' Yu. M. Planktonic Ciliates of the Kuibyshev Reservoir. Diss. Cand. Sci. (Biol.). Saint Petersburg, 1995. 161 p. (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Эггерт М. Б. Суточное вертикальное распределение зимнего зоопланктона в пелагиали озера Байкал // Гидробиологический журнал. 1973. Т. 9, вып. 1. С. 36 – 46.</mixed-citation><mixed-citation xml:lang="en">Eggert M. B. Daily vertical distribution of winter zooplankton in the pelagial of Lake Baikal. Hydrobiological Journal, 1973, vol. 9, iss. 1, pp. 36–46 (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Bykova S. V. Ecological specifity and spatial and temporal distribution of ciliates from the pelagic plankton oh a fresh meromictic waterbody // Inland Water Biology. 2015. Vol. 8, № 2. P. 166 – 176. https://doi.org/10/7868/S0320965215020035</mixed-citation><mixed-citation xml:lang="en">Bykova S. V. Ecological specifity and spatial and temporal distribution of ciliates from the pelagic plankton oh a fresh meromictic waterbody. Inland Water Biology, 2015, vol. 8, no. 2. pp. 166–176. https://doi.org/10/7868/S0320965215020035</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Fenchel T. Protozoa and oxygen // Acta Protozoologica. 2012. Vol. 52. P. 11 – 20.</mixed-citation><mixed-citation xml:lang="en">Fenchel T. Protozoa and oxygen. Acta Protozoologica, 2012, vol. 52, pp. 11–20.</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Fenchel T., Juel Hansen P. Motile behaviour of the bloom-forming ciliate Mesodinium rubrum // Marine Biology Research. 2006. Vol. 2, № 1. P. 33 – 40.</mixed-citation><mixed-citation xml:lang="en">Fenchel T., Juel Hansen P. Motile behaviour of the bloom-forming ciliate Mesodinium rubrum. Marine Biology Research, 2006, vol. 2, no. 1, pp. 33–40.</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Feng M., Zhang W., Xiao T. Spatial and temporal distribution of tintinnid (Ciliophora : Tintinnida) communities in Kongsfjorden, Svalbard (Arctic), during summer // Polar Biology. 2014. Vol. 37, № 2. P. 291 – 296.</mixed-citation><mixed-citation xml:lang="en">Feng M., Zhang W., Xiao T. Spatial and temporal distribution of tintinnid (Ciliophora : Tintinnida) communities in Kongsfjorden, Svalbard (Arctic), during summer // Polar Biology. 2014. Vol. 37, № 2. P. 291 – 296.</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Jephson T. Diel Vertical Migration in Marine Dinoflagellates. Lund : Lund University, 2012. 32 p.</mixed-citation><mixed-citation xml:lang="en">Jephson T. Diel Vertical Migration in Marine Dinoflagellates. Lund : Lund University, 2012. 32 p.</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Jonsson P. R. Vertical distribution of planktonic ciliates- an experimental analysis of swimming behaviour // Marine Ecology Progress Series. 1989. Vol. 52, № 1. P. 39 – 53.</mixed-citation><mixed-citation xml:lang="en">Jonsson P. R. Vertical distribution of planktonic ciliates- an experimental analysis of swimming behaviour // Marine Ecology Progress Series. 1989. Vol. 52, № 1. P. 39 – 53.</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">Olli K., Heiskanen A. S., Lohikari K. Vertical migration of autotrophic micro-organisms during a vernal bloom at the coastal Baltic Sea – coexistence through niche separation // Eutrophication in Planktonic Ecosystems : Food Web Dynamics and Elemental Cycling. Dordrecht : Springer, 1998. P. 179 – 189.</mixed-citation><mixed-citation xml:lang="en">Olli K., Heiskanen A. S., Lohikari K. Vertical migration of autotrophic micro-organisms during a vernal bloom at the coastal Baltic Sea – coexistence through niche separation // Eutrophication in Planktonic Ecosystems : Food Web Dynamics and Elemental Cycling. Dordrecht : Springer, 1998. P. 179 – 189.</mixed-citation></citation-alternatives></ref><ref id="cit22"><label>22</label><citation-alternatives><mixed-citation xml:lang="ru">Paranjape M. A. The seasonal cycles and vertical distribution of tintinnines in Bedford Basin, Nova Scotia, Canada // Canadian Journal of Zoology. 1987. Vol. 65, № 1. P. 41 – 48. https://doi.org/10.1139/z87-007</mixed-citation><mixed-citation xml:lang="en">Paranjape M. A. The seasonal cycles and vertical distribution of tintinnines in Bedford Basin, Nova Scotia, Canada // Canadian Journal of Zoology. 1987. Vol. 65, № 1. P. 41 – 48. https://doi.org/10.1139/z87-007</mixed-citation></citation-alternatives></ref><ref id="cit23"><label>23</label><citation-alternatives><mixed-citation xml:lang="ru">Pérez M. T., Dolan J. R., Vidussi F., Fukai E. Diel vertical distribution of planktonic ciliates within the surface layer of the NW Mediterranean (May 1995) // Deep Sea Research. Part I : Oceanographic Research Papers. 2000. Vol. 47, № 3. P. 479 – 503.</mixed-citation><mixed-citation xml:lang="en">Pérez M. T., Dolan J. R., Vidussi F., Fukai E. Diel vertical distribution of planktonic ciliates within the surface layer of the NW Mediterranean (May 1995) // Deep Sea Research. Part I : Oceanographic Research Papers. 2000. Vol. 47, № 3. P. 479 – 503.</mixed-citation></citation-alternatives></ref><ref id="cit24"><label>24</label><citation-alternatives><mixed-citation xml:lang="ru">Rossberg M., Wickham S. A. Ciliate vertical distribution and diel vertical migration in a eutrophic lake // Fundamental and Applied Limnology. 2008. Vol. 171, № 1. P. 1 – 14.</mixed-citation><mixed-citation xml:lang="en">Rossberg M., Wickham S. A. Ciliate vertical distribution and diel vertical migration in a eutrophic lake // Fundamental and Applied Limnology. 2008. Vol. 171, № 1. P. 1 – 14.</mixed-citation></citation-alternatives></ref><ref id="cit25"><label>25</label><citation-alternatives><mixed-citation xml:lang="ru">Zingel P. Vertical and seasonal dynamics of planktonic ciliates in a strongly stratified hypertrophic lake // Lake Verevi, Estonia – A Highly Stratified Hypertrophic Lake. Dordrecht : Springer, 2005. P. 163 – 174.</mixed-citation><mixed-citation xml:lang="en">Zingel P. Vertical and seasonal dynamics of planktonic ciliates in a strongly stratified hypertrophic lake // Lake Verevi, Estonia – A Highly Stratified Hypertrophic Lake. Dordrecht : Springer, 2005. P. 163 – 174.</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
