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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Priroda</journal-id><journal-title-group><journal-title xml:lang="en">Priroda</journal-title><trans-title-group xml:lang="ru"><trans-title>Природа</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0032-874X</issn><publisher><publisher-name xml:lang="en">Akademizdatcenter Nauka</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">627808</article-id><article-id pub-id-type="doi">10.7868/S0032874X23060029</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Phytoplankton of The Arctic Seas</article-title><trans-title-group xml:lang="ru"><trans-title>Фитопланктон Арктических Морей</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Polyakova</surname><given-names>Ye. I</given-names></name><name xml:lang="ru"><surname>Полякова</surname><given-names>Е. И</given-names></name></name-alternatives><email>ye.polyakova@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Klyuvitkina</surname><given-names>T. S</given-names></name><name xml:lang="ru"><surname>Клювиткина</surname><given-names>Т. С</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Lomonosov Moscow State University</institution></aff><aff><institution xml:lang="ru">Московский Государственный Университет имени М.В.Ломоносова</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-06-30" publication-format="electronic"><day>30</day><month>06</month><year>2023</year></pub-date><issue>6</issue><issue-title xml:lang="en">NO6 (2023)</issue-title><issue-title xml:lang="ru">№6 (2023)</issue-title><fpage>15</fpage><lpage>24</lpage><history><date date-type="received" iso-8601-date="2024-03-01"><day>01</day><month>03</month><year>2024</year></date></history><permissions><copyright-statement xml:lang="ru">Copyright ©; 2023, Издательство «Наука»</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Издательство «Наука»</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/0032-874X/article/view/627808">https://journals.eco-vector.com/0032-874X/article/view/627808</self-uri><abstract xml:lang="en"><p>Detailed data on phytoplankton composition and spatial distribution in the high-latitude areas of the Arctic remain limited. In the context of the ongoing environmental changes (increasing warming and ice melting), understanding of the seasonal and interannual phytoplankton community dynamics is of crucial importance. Our study provides new specifying data on species composition of phytoplankton over the vast area of the Laptev Sea shelf and the East Siberian Sea shelf. In September the outer shelf plankton communities of the Laptev and East Siberian seas were characterized by typical late spring diatom species. The community of the inner shelf of the Laptev Sea (strongly affected by river water masses) was found to be transitional from summer to autumn stage of development. In general, it has been established that regional differences in the species composition of phytoplankton communities on the shelf of the Laptev and East Siberian Seas are associated with diff erences in hydrography, marine chemical conditions, and seasonal sea ice regime.</p></abstract><trans-abstract xml:lang="ru"><p>Данные о составе фитопланктона и его пространственном распределении в высокоширотных арктических морях в настоящее время остаются весьма ограниченными. Вместе с тем в условиях нарастающего потепления климата и активного таяния полярных льдов важно понимать закономерности сезонной и межгодовой динамики арктических биоценозов. В статье представлены новые данные о видовом составе фитопланктона на обширной площади морей Лаптевых и Восточно-Сибирского. Мы установили, что во время пробоотбора (сентябрь) внешний шельф характеризовался типичными для арктических морей поздневесенними видами диатомовых водорослей. Сообщество фитопланктона на внутреннем шельфе, подверженном мощному влиянию речного стока, находилось в переходной фазе от летней к осенней стадии развития. В целом установлено, что региональные различия в видовом составе сообществ фитопланктона на шельфе морей Лаптевых и Восточно-Сибирского объясняются различиями в гидрографии, гидрохимических условиях и режиме сезонных морских льдов.</p></trans-abstract><kwd-group xml:lang="en"><kwd>Arctic</kwd><kwd>Laptev Sea</kwd><kwd>East Siberian Sea</kwd><kwd>phytoplankton</kwd><kwd>diatoms</kwd><kwd>dinoflagellates</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>Арктика</kwd><kwd>море Лаптевых</kwd><kwd>Восточно-Сибирское море</kwd><kwd>фитопланктон</kwd><kwd>диатомовые водоросли</kwd><kwd>динофлагелляты</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Arrigo K.R., van Dijken G.L. Continued increases in Arctic Ocean primary production. Progress in Oceanography. 2015; 136: 60–70. 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