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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">10.35885/1684-7318-2025-4-412-424</article-id><article-id custom-type="elpub" pub-id-type="custom">sevin-696</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>Разнообразие и распространение метацеркарий описторхид рыб в водоемах урбанизированных территорий</article-title><trans-title-group xml:lang="en"><trans-title>Diversity and distribution of opisthorchid metacercarias in fishes in water bodies of urbanized territories</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9480-1797</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бонина</surname><given-names>О. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Bonina</surname><given-names>O. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Бонина Ольга Михайловна</p><p>630501, Новосибирская обл., п.г.т. Краснообск, ул. Центральная, д. 2б</p></bio><bio xml:lang="en"><p>Olga M. Bonina</p><p>2b Tsentral'naya St., Krasnoobsk, Novosibirsk region 630501</p></bio><email xlink:type="simple">olga-bonina@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/0000-0002-4062-3822</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ефремова</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Efremova</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ефремова Елена Александровна</p><p>630501, Новосибирская обл., п.г.т. Краснообск, ул. Центральная, д. 2б; 630039, г. Новосибирск, ул. Добролюбова, д. 160</p></bio><bio xml:lang="en"><p>Elena A. Efremova</p><p>2b Tsentral'naya St., Krasnoobsk, Novosibirsk region 630501; </p><p>160 Dobrolyubova St., Novosibirsk 630039</p></bio><email xlink:type="simple">alfa_parazit@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2005-6285</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Удальцов</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Udaltsov</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Удальцов Евгений Анатольевич</p><p>630073, г. Новосибирск, проспект Маркса, д. 20</p></bio><bio xml:lang="en"><p>Evgeny A. Udaltsov</p><p>20 Marx Avenue, Novosibirsk 630073</p></bio><email xlink:type="simple">ugodnic@gmail.com</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0003-2444-9400</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Самохина</surname><given-names>Е. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Samokhina</surname><given-names>E. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Самохина Екатерина Романовна</p><p>630039, г. Новосибирск, ул. Добролюбова, д. 160</p></bio><bio xml:lang="en"><p>Ekaterina R. Samokhina</p><p>160 Dobrolyubova St., Novosibirsk 630039</p></bio><email xlink:type="simple">samokhina9050@mail.ru</email><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Сибирский федеральный научный центр агробиотехнологий РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Siberian Federal Research Center for Agrobiotechnologies of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Сибирский федеральный научный центр агробиотехнологий РАН; &#13;
Новосибирский государственный аграрный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Siberian Federal Research Center for Agrobiotechnologies of the Russian Academy of Sciences; &#13;
Novosibirsk State Agrarian University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Новосибирский государственный технический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Novosibirsk State Technical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Новосибирский государственный аграрный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Novosibirsk State Agrarian University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>04</day><month>01</month><year>2026</year></pub-date><volume>0</volume><issue>4</issue><fpage>412</fpage><lpage>424</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Бонина О.М., Ефремова Е.А., Удальцов Е.А., Самохина Е.Р., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Бонина О.М., Ефремова Е.А., Удальцов Е.А., Самохина Е.Р.</copyright-holder><copyright-holder xml:lang="en">Bonina O.M., Efremova E.A., Udaltsov E.A., Samokhina E.R.</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/696">https://sevin.elpub.ru/jour/article/view/696</self-uri><abstract><p>Представлена характеристика разнообразия описторхид и зараженность дополнительных хозяев в различных водных экосистемах в условиях мегаполиса – г. Новосибирска. В задачи исследований входило определение видового состава метацеркарий описторхид, анализ их встречаемости и численности у рыб в каждом из трех групп водоемов: р. Обь, ее притоки и Бердский залив, расположенных в границах Новосибирска и отличающихся по комплексу абиотических и биотических характеристик. В обследованных водоемах состав гемипопуляции метацеркариев идентичен и представлен 3 видами – Opisthorchis felineus (Rivolta, 1884), Metorchis bilis (Braun, 1890) и Metorchis xanthosomus (Creplin, 1846), однако зараженность дополнительного хозяина личинками описторхид отдельных видов в различных водных локалитетах изменчива и определяется местными экологическими особенностями. Наиболее распространенный вид описторхид у рыб, отловленных в р. Обь и Бердском заливе – O. felineus, субдоминантом выступают, соответственно, M. xanthosomus и M. bilis. В Бердском заливе наиболее часто и интенсивно заражены O. felineus туводные – язь, верховка, елец, а M. bilis – язь и верховка. В р. Обь метацеркарии O. felineus и M. xanthosomus регистрировали преимущественно у промыслового язя. У дополнительных хозяев, обитающих в притоках Оби, в отличие от других водных объектов, доминантами являются M. bilis и O. felineus, при этом у верховки и язя непромысловых размеров чаще выявляли метацеркарии M. bilis, а у туводной плотвы – O. felineus. Анализ разнообразия представителей метацеркариев описторхид с использованием биологических индексов свидетельствует об упрощенной структуре сообществ описторхид в каждом водоеме. Наиболее сложная структура гемипопуляции описторхид выявлена в притоках Оби (Н = 1.01), затем в Бердском заливе (Н = 0.51) и в р. Обь (Н = 0.32). Высокие величины индексов доминирования (D) характерны для магистрального русла Оби и Бердского залива, что указывает на обилие одного вида описторхид, а именно O. felineus. Низкие значения индекса Симпсона в притоках Оби свидетельствует о выравненности обилия численности метацеркарий и отсутствии явного доминирования какого-либо вида.</p></abstract><trans-abstract xml:lang="en"><p>The article presents the characteristics of the biodiversity of opisthorchids and the infestation of additional hosts in various aquatic ecosystems in a metropolitan area (Novosibirsk city). The objectives of the study included determining the species composition of opisthorchids metacercariae, analyzing their occurrence and abundance in fish in each of the three groups water bodies, namely: the Ob River, its tributaries and Berdsk Bay, located within the boundaries of Novosibirsk city and differing in a set of abiotic and biotic characteristics. The composition of the metacercariae hemipopulation in the surveyed water bodies was identical, being represented by three species, namely, O. felineus (Rivolta, 1884), M. bilis (Braun, 1890), and M. xanthosomus (Creplin, 1846). However, the infestation of an additional host by opisthorchids larvae of individual species in different water localities was variable and was determined by local environmental features. The most common opisthorchids species in fish caught in the Ob River and Berdsk Bay is O. felineus, the subdominant ones are M. bilis and M. xanthosomus, respectively. In the Berdsk Bay small local fish (ide, gudgeon, and dace) were most frequently and intensively infected with O. felineus and M. bilis, while in the Ob River, O. felineus and M. xanthosomus metacercariae were more often recorded in ide. In the additional host inhabiting the Ob tributaries, unlike other water bodies, M. bilis and O. felineus were dominant, with M. bilis metacercariae more often detected in small local fish: gudgeon and ide, and O. felineus in roach (EI = 34.3%). Our analysis of the diversity of opisthorchid metacercariae representatives using biological indices indicates a simplified structure of opisthorchid communities in each water body. The most complex structure of the opisthorchid hemipopulation was found in the Ob tributaries (H = 1.01), then in the Berdsk Bay (H = 0.51) and in the Ob River (H = 0.32). The highest values of dominance indices (D) are characteristic of the main channel of the Ob and the Berdsk Bay, which indicates the abundance of one species of opisthorchid, namely, O. felineus. Low values of the Simpson index in the Ob tributaries indicate the uniformity of the abundance of metacercariae and the absence of obvious dominance of any species. </p></trans-abstract><kwd-group xml:lang="ru"><kwd>сообщество описторхид</kwd><kwd>метацеркарии</kwd><kwd>урбоэкосистема</kwd><kwd>водные локалитеты</kwd><kwd>Новосибирск</kwd></kwd-group><kwd-group xml:lang="en"><kwd>opisthorchid community</kwd><kwd>metacercariae</kwd><kwd>urban ecosystem</kwd><kwd>aquatic localities</kwd><kwd>Novosibirsk city</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Bonina O. M., Fedorov K. P., Rostovtsev A. A. Opisthorchid infection rate of cyprinid fish in the Novosibirsk water reservoir. Siberian Bulletin of Agricultural Science, 2009, no. 9, pp. 55–59 (in Russian).</mixed-citation><mixed-citation xml:lang="en">Bonina O. M., Fedorov K. P., Rostovtsev A. A. 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