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<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">10.35885/1684-7318-2019-3-384-395</article-id><article-id custom-type="elpub" pub-id-type="custom">sevin-166</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>Сообщества зоопланктона средней речной части Чебоксарского водохранилища и факторы, влияющие на формирование их видовой структуры</article-title><trans-title-group xml:lang="en"><trans-title>Zooplankton Communities of the Middle River Part of the Cheboksary Reservoir and Factors Influencing Their Species Structure</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шурганова</surname><given-names>Г. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Shurganova</surname><given-names>G. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>603950, Нижний Новгород, просп. Гагарина, 23.</p></bio><bio xml:lang="en"><p>Galina V. Shurganova.</p><p>23 Gagarin Avenue, Nizhni Novgorod 603950.</p></bio><email xlink:type="simple">galina.nngu@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3241-2133</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Жихарев</surname><given-names>В. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Zhikharev</surname><given-names>V. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>603950, Нижний Новгород, просп. Гагарина, 23.</p></bio><bio xml:lang="en"><p>Vyacheslav S. Zhikharev.</p><p>23 Gagarin Avenue, Nizhni Novgorod 603950.</p></bio><email xlink:type="simple">slava.zhiharev@ro.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гаврилко</surname><given-names>Д. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Gavrilko</surname><given-names>D. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>603950, Нижний Новгород, просп. Гагарина, 23.</p></bio><bio xml:lang="en"><p>Dmitry E. Gavrilko.</p><p>23 Gagarin Avenue, Nizhni Novgorod 603950.</p></bio><email xlink:type="simple">dima_gavrilko@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2388-629X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кудрин</surname><given-names>И. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kudrin</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>603950, Нижний Новгород, просп. Гагарина, 23.</p></bio><bio xml:lang="en"><p>Ivan A. Kudrin.</p><p>23 Gagarin Avenue, Nizhni Novgorod 603950.</p></bio><email xlink:type="simple">kudriniv@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Золотарева</surname><given-names>Т. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Zolotareva</surname><given-names>T. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>603950, Нижний Новгород, просп. Гагарина, 23.</p></bio><bio xml:lang="en"><p>Tatyana V. Zolotareva.</p><p>23 Gagarin Avenue, Nizhni Novgorod 603950.</p></bio><email xlink:type="simple">tanyakuklina.nn@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7150-7851</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Якимов</surname><given-names>В. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Yakimov</surname><given-names>B. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>603950, Нижний Новгород, просп. Гагарина, 23.</p></bio><bio xml:lang="en"><p>Basil N. Yakimov.</p><p>23 Gagarin Avenue, Nizhni Novgorod 603950.</p></bio><email xlink:type="simple">damselfly@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8579-3852</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ерина</surname><given-names>О. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Erina</surname><given-names>O. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>119991, Москва, Ленинские Горы, 13.</p></bio><bio xml:lang="en"><p>Oksana N. Erina.</p><p>1 Leninskie Gory, Moscow 119991.</p></bio><email xlink:type="simple">oxana.erina@geogr.msu.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5493-9396</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Терешина</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Tereshina</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>119991, Москва, Ленинские Горы, 13.</p></bio><bio xml:lang="en"><p>Maria A. Tereshina.</p><p>1 Leninskie Gory, Moscow 119991.</p></bio><email xlink:type="simple">mar.tereshina@yandex.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Национальный исследовательский Нижегородский государственный университет им. Н.И. Лобачевского</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Lobachevsky State University of Nizhni Novgorod</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Национальный исследовательский Нижегородский государственный университет им. Н. И. Лобачевского</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Lobachevsky State University of Nizhni Novgorod</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Московский государственный университет имени М. В. Ломоносова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Lomonosov Moscow State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>31</day><month>12</month><year>2019</year></pub-date><volume>0</volume><issue>3</issue><fpage>384</fpage><lpage>395</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Шурганова Г.В., Жихарев В.С., Гаврилко Д.Е., Кудрин И.А., Золотарева Т.В., Якимов В.Н., Ерина О.Н., Терешина М.А., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Шурганова Г.В., Жихарев В.С., Гаврилко Д.Е., Кудрин И.А., Золотарева Т.В., Якимов В.Н., Ерина О.Н., Терешина М.А.</copyright-holder><copyright-holder xml:lang="en">Shurganova G.V., Zhikharev V.S., Gavrilko D.E., Kudrin I.A., Zolotareva T.V., Yakimov B.N., Erina O.N., Tereshina M.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/166">https://sevin.elpub.ru/jour/article/view/166</self-uri><abstract><p>В работе использованы современные методические подходы к анализу пространственного распределения сообществ зоопланктона (на примере средней речной части Чебоксарского водохранилища). Сообщества зоопланктона были исследованы в период летней межени 2018 г. в средней речной части Чебоксарского водохранилища (от г. Нижний Новгород до пос. Васильсурск). Границы сообществ зоопланктона Чебоксарского водохранилища закономерно менялись с момента его строительства и до наших дней. В средней речной части Чебоксарского водохранилища выявлено два четко выраженных пространственно устойчивых сообществ зоопланктона, связанных с окским и волжским потоками. Различие между этими зоопланктоценозами было продемонстрировано с помощью иерархического кластерного анализа. Анализ избыточности показал, что основными факторами, определяющими изменчивость видовой структуры зоопланктона, являются содержание хлорофилла-a и водородный показатель (pH). При этом концентрация хлорофилла-а отражает мезомасштабную неоднородность горизонтального распределения фитопланктона на исследованной акватории, а  следовательно, и  кормовой базы  организмов зоопланктона. Отношение зоопланктона к уровню рН отражает высокую чувствительность видов рода Brachionus Pallas, 1766 к высокой кислотности. Влияние рН как фактора окружающей среды было менее очевидным. Однако эта переменная хорошо известна как один из ведущих факторов, определяющих структуру сообществ зоопланктона. Его роль в структурной организации сообществ зоопланктона равнинных водохранилищ заслуживает дальнейшего изучения.</p></abstract><trans-abstract xml:lang="en"><p>Modern methodological approaches were applied to analyze the zooplankton community spatial distribution (with the example of the middle river part of the Cheboksary Reservoir). Zooplankton communities were sampled in the middle river part of the Cheboksary Reservoir (from the city of Nizhny Novgorod to Vasilsursk town) in the summer low-water period in 2018. The boundaries between the communities in the Cheboksary Reservoir were gradually changing during the history of the Cheboksary Reservoir from the time of its construction to present. In the middle river part of the Cheboksary Reservoir there are two distinct spatially stable zooplankton communities associated to the Oka and Volga streams. The distinction between these two zooplankton communities was demonstrated by hierarchical cluster analysis. Redundancy analysis has shown that chlorophyll-a and pH were the main factors influencing the specific zooplankton structure. Chlorophyll-a concentration reflects the meso-scale heterogeneity of the horizontal phytoplankton distribution and hence the distribution of the zooplankton’s food sources. The relation of zooplankton to pH level reflects the high sensitivity of the species of the genus Brachionus Pallas, 1766 to high acidity. The influence of pH as an environmental factor was less evident. However, this variable is well known as one of the leading factors determining the structure of zooplankton communities. Its role in zooplankton community assembly of lowland reservoirs deserves further investigation.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>сообщество зоопланктона</kwd><kwd>видовая структура</kwd><kwd>пространственное распределение</kwd><kwd>анализ избыточности</kwd><kwd>Чебоксарское водохранилище</kwd><kwd>Нижегородская область</kwd></kwd-group><kwd-group xml:lang="en"><kwd>zooplankton community</kwd><kwd>species structure</kwd><kwd>spatial distribution</kwd><kwd>redundancy analysis</kwd><kwd>Cheboksary Reservoir</kwd><kwd>Nizhny Novgorod region</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке Русского географического общества (проект № 06/2018-Р «Экспедиция Плавучий университет Волжского бассейна») и Российского фонда фундаментальных исследований (проекты № 18-04-00673 и 19-04-01084).</funding-statement><funding-statement xml:lang="en">This study was supported by the Russian Geographical Society (project “Floating University of the Volga Basin Expedition” No. 06/2018-Р) and the Russian Foundation for Basic Research (projects No. 18-04-00673 and 19-04-01084).</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">Bakanov A. 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