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<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Archiving and Interchange DTD with OASIS Tables with MathML3 v1.4 20241031//EN" "https://jats.nlm.nih.gov/archiving/1.4/JATS-archive-oasis-article1-4-mathml3.dtd">
<article xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" dtd-version="1.4" article-type="research-article" xml:lang="en"><front><journal-meta><journal-title-group><journal-title xml:lang="ru">Теоретическая и прикладная экология</journal-title></journal-title-group><issn publication-format="print">1995-4301</issn><issn publication-format="electronic">2618-8406</issn></journal-meta><article-meta><article-id pub-id-type="doi">10.25750/1995-4301-2026-2-092-099</article-id><article-categories><subj-group><subject>Other</subject></subj-group></article-categories><title-group><article-title xml:lang="ru">Характеристика бактериопланктона Камских водохранилищ в летний период 2022 года</article-title><trans-title-group xml:lang="en"><trans-title>Heterotrophic bacterioplankton in the Kama reservoirs in summer 2022</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="ru"><surname>Уманская</surname><given-names>М. В.</given-names></name><name xml:lang="en"><surname>Umanskaya</surname><given-names>M. V.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/><email>mvumansk67@gmail.com</email><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2097-4913</contrib-id></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="ru"><surname>Краснова</surname><given-names>Е. С.</given-names></name><name xml:lang="en"><surname>Krasnova</surname><given-names>E. S.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/><email>Krasnova-eck@mail.ru</email><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4062-9714</contrib-id></contrib><aff-alternatives id="aff1"><aff><institution xml:lang="en">Samara Federal Research Scientific Center RAS, Institute of Ecology of Volga River Basin RAS</institution><city xml:lang="en">Togliatti</city><country xml:lang="en">Russia</country></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="ru">Самарский федеральный исследовательский центр РАН, Институт экологии Волжского бассейна Российской академии наук</institution><city xml:lang="ru">Тольятти</city><country xml:lang="ru">Россия</country></aff></aff-alternatives></contrib-group><pub-date pub-type="epub" iso-8601-date="2026-06-25"><day>25</day><month>06</month><year>2026</year></pub-date><issue>2</issue><fpage>92</fpage><lpage>99</lpage><self-uri xlink:href="http://envjournal.ru/ari/v2026/v2/26209.pdf" xlink:title="http://envjournal.ru/ari/v2026/v2/26209.pdf">http://envjournal.ru/ari/v2026/v2/26209.pdf</self-uri><self-uri content-type="pdf" xlink:href="publication-20e33f73-ec21-4892-b672-2f3488740a67.pdf" xlink:title="PDF"/><abstract xml:lang="ru"><p>В работе дана характеристика размерно-морфологической структуры и пространственного распределения гетеротрофного бактериопланктона в Нижнекамском, Воткинском и Камском водохранилищах в августе-сентябре 2022 г. Общая численность гетеротрофного бактериопланктона в исследованных водоёмах изменялась в пределах (1,9-8,7) · 106 кл./мл (в среднем (3,8 ± 1,2) · 106 кл./мл), биомасса - 44,1-190,8 мкг C/л (91,0 ± 29,3 мкгC/л), что соответствует мезотрофно-эвтрофному уровню продуктивности водохранилищ. В составе бактериопланктона преобладали мелкие одиночные свободноплавающие гетеротрофные бактерии, преимущественно кокки и кокобациллы. C севера на юг вниз по течению р. Камы происходило увеличение общей численности и биомассы бактерий, и также возрастала доля агрегированных бактерий. В устьевых участках притоков численность бактерий в 1,5-2,0 раза превы-шала таковую на прилегающих участках водохранилища. Агрегированный бактериопланктон был преимущественно ассоциирован с частицами детрита и вносил большой вклад в общую численность бактерий в основном в устьевых участках притоков. Пикодетритные частицы постоянно присутствовали во всех пробах и по массе превосходили биомассу бактериопланктона в 2,8 раза, а их наибольшее количество обнаружено в устьях притоков. Вода во всех водохранилищах каскада соответствовала IV (загрязнённому) классу качества по численности бактериопланктона.</p></abstract><abstract xml:lang="en" abstract-type="summary"><p>The paper describes the size-morphological structure and spatial distribution of heterotrophic bacterioplankton in the Nizhnekamskoe, Votkinskoe and Kamskoe Reservoirs in August - September 2022. The total abundance of heterotrophic bacterioplankton in the studied reservoirs varied within the range of (1.91-8.74) · 106 cells/mL (on average (3.8±1.2) · 106 cells/mL), biomass - 44.1-190.8 μg C/L (91.0 ± 29.3 μg C/L), which corresponds to the mesotrophic‐eutrophic level of productivity. The composition of bacterioplankton was dominated by small single free-floating heterotrophic bacteria, mainly cocci and cocobacilli. Unicellular filamentous cells constantly present in the samples during the observation period, and were an integral component of heterotrophic bacterioplankton, despite their small abundance at most stations. In the mouth areas of the tributaries, the number of bacteria was 1.5-2.0 times higher than in the adjacent areas of the reservoirs. This may be due to the fact that mouth areas are a kind of barrier between the tributary and the reservoir, where transformation and accumulation of river flow occur, i.e. they represent ecotones characterized, among other things, by an increase in the abundance of organisms. Aggregated bacterioplankton was mainly associated with detritus particles and made a significant contribution to the total abundance of bacteria, mainly in the mouth areas of tributaries. Picodetritic particles were constantly present in all samples and exceeded the mass of bacterioplankton by 2.8 times, and their greatest number was found in the mouths of tributaries. The water in all reservoirs of the cascade corresponded to the IV (polluted) quality class in terms of the number of bacterioplankton.</p></abstract><kwd-group xml:lang="ru"><kwd>гетеротрофные бактерии</kwd><kwd>детрит</kwd><kwd>пространственное распределение</kwd><kwd>каскад Камских водохранищ</kwd></kwd-group><kwd-group xml:lang="en"><kwd>heterotrophic bacteria</kwd><kwd>detritus</kwd><kwd>spatial distribution</kwd><kwd>the Kama reservoirs’ cascade</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках темы государственного задания Института экологии Волжского бассейна-филиал СамНЦ РН № 1024032600218-3-1.6.20.</funding-statement></funding-group></article-meta></front><back><ref-list><ref id="ref1"><mixed-citation publication-type="other" xml:lang="ru">1. Драбкова В.Г. Зональное изменение интенсивности микробиологических процессов в озёрах. Л.: Наука, 1981. 212 с.</mixed-citation></ref><ref id="ref2"><mixed-citation publication-type="other" xml:lang="ru">2. Романенко В.И. Микробиологические процессы продукции и деструкции органического вещества во внутренних водоёмах. Л.: Наука, 1985. 295 с.</mixed-citation></ref><ref id="ref3"><mixed-citation publication-type="other" xml:lang="ru">3. Romanenko A.V. Seasonal dynamics of the structural and functional organization of heterotrophic bacterioplankton in the mouth area of the Small Il’d River // Inland Water Biol. 2023. V. 16. Suppl. 1. P. 67–74. doi: 10.1134/S199508292307012Х</mixed-citation></ref><ref id="ref4"><mixed-citation publication-type="other" xml:lang="ru">4. Копылов А.И., Косолапов Д.Б. Бактериопланктон водохранилищ Верхней и Средней Волги. М.: Изд-во СГУ, 2008. 377 с.</mixed-citation></ref><ref id="ref5"><mixed-citation publication-type="other" xml:lang="ru">5. Callieri C., Karjalainen S.M., Passoni S. Grazing by ciliates and heterotrophic nanoflagellates on picocyanobacteria in Lago Maggiore, Italy // J. Plankton Res. 2002. V. 24. No. 8. P. 785–796. doi: 10.1093/plankt/24.8.785</mixed-citation></ref><ref id="ref6"><mixed-citation publication-type="other" xml:lang="ru">6. Gilbert J.J. Food niches of planktonic rotifers: diversification and implications // Limnol. Oceanogr. 2022. V. 67. No. 10. P. 2218–2251. doi: 10.1002/lno.12199</mixed-citation></ref><ref id="ref7"><mixed-citation publication-type="other" xml:lang="ru">7. Raven J.A. The twelfth Tansley Lecture. Small is beautiful: The picophytoplankton // Funct. Ecol. 1998. V. 12. No. 4. P. 503–513. doi: 10.1046/j.1365-2435.1998.00233.x</mixed-citation></ref><ref id="ref8"><mixed-citation publication-type="other" xml:lang="ru">8. Олейник Г.Н., Юришинец В.И., Старосила Е.В. Бактериопланктон и бактериобентос как биологические индикаторы состояния водных экосистем // Гидробиол. журн. 2010. Т. 46. № 6. С. 38–51.</mixed-citation></ref><ref id="ref9"><mixed-citation publication-type="other" xml:lang="ru">9. Садчиков А.П., Остроумов С.А. Экологическое и трофическое значение детрита в водоёмах // Рыбное хозяйство. 2017. № 2. C. 65–69.</mixed-citation></ref><ref id="ref10"><mixed-citation publication-type="other" xml:lang="ru">10. Комлев А.М. Реки Пермского края. Пермь: ООО Алекс-Пресс, 2011. 144 с.</mixed-citation></ref><ref id="ref11"><mixed-citation publication-type="other" xml:lang="ru">11. Куйбышевское водохранилище (научно-информационный справочник) / Отв. ред. Г.С. Розенберг, Л.А. Выхристюк. Тольятти: ИЭВБ РАН, 2008. 123 с.</mixed-citation></ref><ref id="ref12"><mixed-citation publication-type="other" xml:lang="ru">12. Правила использования водных ресурсов Нижнекамского водохранилища на р. Кама. М.: Рос-водресурсы, 2014. 132 с.</mixed-citation></ref><ref id="ref13"><mixed-citation publication-type="other" xml:lang="ru">13. Porter K.G., Feig Y.S. The use of DAPI for identifying and counting aquatic microflora // Limnol. Oceanogr. 1980. V. 25. No. 5. P. 943–948. doi: 10.4319/lo.1980.25.5.0943</mixed-citation></ref><ref id="ref14"><mixed-citation publication-type="other" xml:lang="ru">14. Mostajir B., Dolan J.R., Rassoulzadegan F. A simple method for the quantification of a class of labile marine pico- and nano-sized detritus: DAPI Yellow Particles (DYP) // Aquat. Microb. Ecol. 1995. V. 9. P. 259–266. doi: 10.3354/ame009259</mixed-citation></ref><ref id="ref15"><mixed-citation publication-type="other" xml:lang="ru">15. Chateauvert C.A., Lesack L.F.W., Bothwell M.L. Abundance and patterns of transparent exopolymer particles (TEP) in Arctic floodplain lakes of the Mackenzie River Delta // J. Geophys. Res. G: Biogeosci. 2012. V. 117. No. G4. Article No. G04013. doi: 10.1029/2012JG002132</mixed-citation></ref><ref id="ref16"><mixed-citation publication-type="other" xml:lang="ru">16. Кузнецов С.И., Дубинина Г.А. Методы изучения водных микроорганизмов. М.: Наука, 1989. 288 с.</mixed-citation></ref><ref id="ref17"><mixed-citation publication-type="other" xml:lang="ru">17. Carlson R.E. A trophic state index for lakes // Limnol. Oceanogr. 1977. V. 22. No. 2. P. 361–369. doi: 10.4319/lo.1977.22.2.0361</mixed-citation></ref><ref id="ref18"><mixed-citation publication-type="other" xml:lang="ru">18. Китаев С.П. Основы лимнологии для гидробиологов и ихтиологов. Петрозаводск: Карельский научный центр РАН, 2007. 395 с.</mixed-citation></ref><ref id="ref19"><mixed-citation publication-type="other" xml:lang="ru">19. Одум Ю. Основы экологии. М.: Мир, 1975. 740 с.</mixed-citation></ref><ref id="ref20"><mixed-citation publication-type="other" xml:lang="ru">20. Гидроэкология устьевых областей притоков равнинного водохранилища / ред. А.В. Крылов, А.И. Цветков, С.Э. Болотов. Ярославль: Филигрань, 2015. 466 с.</mixed-citation></ref><ref id="ref21"><mixed-citation publication-type="other" xml:lang="ru">21. Законнов В.В., Поддубный С.А., Законнова А.В., Касьянова В.В. Осадкообразование в зонах переменного подпора водохранилищ Волжского каскада // Водные ресурсы. 2010. Т. 37. № 4. С. 425–433.</mixed-citation></ref><ref id="ref22"><mixed-citation publication-type="other" xml:lang="ru">22. Уманская М.В., Рахуба А.В., Краснова Е.С. Влияние суточного гидрологического режима на бактериопланктон устьевой области р. Сок // Проблемы изучения краевых структур биоценозов: Мат. 3-й Между-нар. конф. Саратов, 2–4 октября 2012 г. Саратов: Изд-во Саратовского ун-та, 2012. С. 123–126.</mixed-citation></ref><ref id="ref23"><mixed-citation publication-type="other" xml:lang="ru">23. Pernthaler J., Sattler B., Šimek K., Schwarzenbacher A., Psenner R. Top-down effects on the sizebiomass distribution of a freshwater bacterioplankton community // Aquat. Microb. Ecol. 1996. V. 10. No. 3. P. 255–263. doi: 10.3354/ame010255</mixed-citation></ref><ref id="ref24"><mixed-citation publication-type="other" xml:lang="ru">24. Jürgens K. Predation on bacteria and bacterial resistance mechanisms: comparative aspects among different predator groups in aquatic systems // Predatory Prokaryotes. Microbiology Monographs. V. 4. / Ed. E. Jurkevitch. Berlin; Heidelberg: Springer-Verlag, 2007. P. 57–92. doi: 10.1007/7171_053</mixed-citation></ref><ref id="ref25"><mixed-citation publication-type="other" xml:lang="ru">25. Salcher M.M. Same same but different: ecological niche partitioning of planktonic freshwater prokaryotes // J. Limnol. 2014. V. 73. No. 1. P. 74–87. doi: 10.4081/ jlimnol.2014.813</mixed-citation></ref><ref id="ref26"><mixed-citation publication-type="other" xml:lang="ru">26. Жариков В.В., Горбунов М.Ю., Уманская М.В., Быкова С.В., Шерышева Н.Г. Экология сообществ бактерий и свободноживущих инфузорий малых водоёмов Самарской Луки. Тольятти: ИЭВБ РАН, 2007. 193 с.</mixed-citation></ref><ref id="ref27"><mixed-citation publication-type="other" xml:lang="ru">27. Kuznetsova E.V., Kosolapov D.B., Krylov A.V. Changes in size-morphological structure of bacterioplankton in freshwater environments of Svalbard // Contemp.Probl. Ecol. 2022. V. 15. No. 2. P. 139–146. doi: 10.1134/S199542552202007X</mixed-citation></ref><ref id="ref28"><mixed-citation publication-type="other" xml:lang="ru">28. Bykova S.V. Free-living ciliates of the deepwater part of the Kama Reservoirs // Inland Water Biol. 2023. V. 16. No. 2. P. 237–254. doi: 10.1134/S1995082923020037</mixed-citation></ref><ref id="ref29"><mixed-citation publication-type="other" xml:lang="en">1. Drabkova V.G. Zonal change in the intensity of microbiological processes in lakes. Leningrad: Nauka, 1981. 212 p. (in Russian).</mixed-citation></ref><ref id="ref30"><mixed-citation publication-type="other" xml:lang="en">2. Romanenko V.I. Microbial processes of production and destruction of organic matter in inland aquatic environments. Leningrad: Nauka, 1985. 295 p. (in Russian).</mixed-citation></ref><ref id="ref31"><mixed-citation publication-type="other" xml:lang="en">3. Romanenko A.V. Seasonal dynamics of the structural and functional organization of heterotrophic bacterioplankton in the mouth area of the Small Il’d River // Inland Water Biol. 2023. V. 16. Suppl. 1. P. 67–74. doi: 10.1134/S199508292307012X</mixed-citation></ref><ref id="ref32"><mixed-citation publication-type="other" xml:lang="en">4. Kopylov A.I., Kosolapov D.B. Bacterioplankton of the Upper and Middle Volga reservoirs. Moskva: Izdatelstvo SGU, 2008. 377 p. (in Russian).</mixed-citation></ref><ref id="ref33"><mixed-citation publication-type="other" xml:lang="en">5. Callieri C., Karjalainen S.M., Passoni S. Grazing by ciliates and heterotrophic nanoflagellates on picocyano-bacteria in Lago Maggiore, Italy // J. Plankton Res. 2002. V. 24. No. 8. P. 785–796. doi: 10.1093/plankt/24.8.785</mixed-citation></ref><ref id="ref34"><mixed-citation publication-type="other" xml:lang="en">6. Gilbert J.J. Food niches of planktonic rotifers: Diversification and implications // Limnol. Oceanogr. 2022. V. 67. No. 10. P. 2218–2251. doi: 10.1002/lno.12199</mixed-citation></ref><ref id="ref35"><mixed-citation publication-type="other" xml:lang="en">7. Raven J.A. The twelfth Tansley Lecture. Small is beautiful: The picophytoplankton // Funct. Ecol. 1998. V. 12. No. 4. P. 503–513. doi: 10.1046/j.1365-2435.1998.00233.x</mixed-citation></ref><ref id="ref36"><mixed-citation publication-type="other" xml:lang="en">8. Oleynik G.N., Yurishinets V.I., Starosila E.V. Bacterioplankton and bacteriobenthos as biological indicators of the aquatic ecosystem state // Hydrobiological journal. 2010. V. 46. No. 6. P. 38–51 (in Russian).</mixed-citation></ref><ref id="ref37"><mixed-citation publication-type="other" xml:lang="en">9. Sadchikov A.P., Ostroumov S.A. Ecological and trophic role of detritus in water bodies // Rybnoe khozyaystvo. 2017. No. 2. P. 65–68 (in Russian).</mixed-citation></ref><ref id="ref38"><mixed-citation publication-type="other" xml:lang="en">10. Komlev A.M. Perm Krai rivers. Perm: Alex-Press LLC, 2011. 144 p. (in Russian).</mixed-citation></ref><ref id="ref39"><mixed-citation publication-type="other" xml:lang="en">11. Kuibyshev reservoir (scientific information guide) / Eds. G.S. Rozenberg, L.A. Vykhristyuk. Togliatti: IEVB RAN, 2008. 123 p. (in Russian).</mixed-citation></ref><ref id="ref40"><mixed-citation publication-type="other" xml:lang="en">12. Rules for the use of water resources of the Nizhnekamsk reservoir on the Kama River. Moskva: Rosvodresursy, 2014. 132 p. (in Russian).</mixed-citation></ref><ref id="ref41"><mixed-citation publication-type="other" xml:lang="en">13. Porter K.G., Feig Y.S. The use of DAPI for identifying and counting aquatic microflora // Limnol. Oceanogr. 1980. V. 25. No. 5. P. 943–948. doi: 10.4319/lo.1980.25.5.0943</mixed-citation></ref><ref id="ref42"><mixed-citation publication-type="other" xml:lang="en">14. Mostajir B., Dolan J.R., Rassoulzadegan F. A simple method for the quantification of a class of labile marine pico- and nano-sized detritus: DAPI Yellow Particles (DYP) // Aquat. Microb. Ecol. 1995. V. 9. P. 259–266. doi: 10.3354/ame009259</mixed-citation></ref><ref id="ref43"><mixed-citation publication-type="other" xml:lang="en">15. Chateauvert C.A., Lesack L.F.W., Bothwell M.L. Abundance and patterns of transparent exopolymer particles (TEP) in Arctic floodplain lakes of the Mackenzie River Delta // J. Geophys. Res. G: Biogeosci. 2012. V. 117. No. G4. Article No. G04013. doi: 10.1029/2012JG002132</mixed-citation></ref><ref id="ref44"><mixed-citation publication-type="other" xml:lang="en">16. Kuznetsov S.I., Dubinina G.A. Methods of studying aquatic microorganisms. Moskva: Nauka, 1989. 288 p. (in Russian)</mixed-citation></ref><ref id="ref45"><mixed-citation publication-type="other" xml:lang="en">17. Carlson R.E. A trophic state index for lakes // Limnol. Oceanogr. 1977. V. 22. No. 2. P. 361–369. doi: 10.4319/lo.1977.22.2.0361</mixed-citation></ref><ref id="ref46"><mixed-citation publication-type="other" xml:lang="en">18. Kitaev S.P. Basic general limnology for hudrobiologists and ichthyologists. Petrozavodsk: Karelian Scientific Center of the RAS, 2007. 395 p. (in Russian).</mixed-citation></ref><ref id="ref47"><mixed-citation publication-type="other" xml:lang="en">19. Odum Yu. Fundamentals of ecology. Moskva: Mir, 1975. 740 p. (in Russian).</mixed-citation></ref><ref id="ref48"><mixed-citation publication-type="other" xml:lang="en">20. Hydroecology of lowland water reservoir tributaries’ mouth / Ed. A.V. Krylov, A.I. Tsvetkov, S.E. Bolotov. Yaroslavl: Filigran Publ., 2015. 466 p. (in Russian).</mixed-citation></ref><ref id="ref49"><mixed-citation publication-type="other" xml:lang="en">21. Zakonnov V.V., Poddubnyy S.A., Zakonnova A.V., Kas’yanova V.V. Sedimentation in variable-backwater zones of Volga chain reservoirs // Water Resour. 2010.V. 37. No. 4. P. 462–470. doi: 10.1134/S0097807810040056</mixed-citation></ref><ref id="ref50"><mixed-citation publication-type="other" xml:lang="en">22. Umanskaya M.V., Rakhuba A.V., Krasnova E.S. Daily hydrological regime effect on bacterioplankton of the mouth area of the Sok River // Problems of studying marginal structures of biocenoses: materialy 3 Mezhdunarodnoy nauchnoy konferentsii. Saratov, October 2–4, 2012. Saratov: of Saratov University Publ., 2012. P. 123–126 (in Russian).</mixed-citation></ref><ref id="ref51"><mixed-citation publication-type="other" xml:lang="en">23. Pernthaler J., Sattler B., Šimek K., Schwarzenbacher A., Psenner R. Top-down effects on the size-biomass distribution of a freshwater bacterioplankton community // Aquat. Microb. Ecol. 1996. V. 10. No. 3. P. 255–263. doi: 10.3354/ame010255</mixed-citation></ref><ref id="ref52"><mixed-citation publication-type="other" xml:lang="en">24. Jürgens K. Predation on bacteria and bacterial resistance mechanisms: comparative aspects among different predator groups in aquatic systems // Predatory Prokaryotes. Microbiology Monographs. V. 4. / Ed. E. Jurkevitch. Berlin; Heidelberg: Springer-Verlag, 2007. P. 57–92. doi: 10.1007/7171_053</mixed-citation></ref><ref id="ref53"><mixed-citation publication-type="other" xml:lang="en">25. Salcher M.M. Same same but different: ecological niche partitioning of planktonic freshwater prokaryotes // J. Limnol. 2014. V. 73. No. 1. P. 74–87. doi: 10.4081/jlim-nol.2014.813</mixed-citation></ref><ref id="ref54"><mixed-citation publication-type="other" xml:lang="en">26. Zharikov V.V., Gorbunov M.Yu., Umanskaya M.V., Bykova S.V., Sherysheva N.G. Ecological features of bacterioplankton development in Samara Luka small eutrophic lakes. Tolyatti: IEVB RAN, 2007. 193 p. (in Russian).</mixed-citation></ref><ref id="ref55"><mixed-citation publication-type="other" xml:lang="en">27. Kuznetsova E.V., Kosolapov D.B., Krylov A.V. Changes in size-morphological structure of bacterioplankton in fresh-water environments of Svalbard // Contemp. Probl. Ecol. 2022. V. 15. No. 2. P. 139–146. doi: 10.1134/S199542552202007X</mixed-citation></ref><ref id="ref56"><mixed-citation publication-type="other" xml:lang="en">28. Bykova S.V. Free-living ciliates of the deepwater part of the Kama Reservoirs // Inland Water Biol. 2023. V. 16. No. 2. P. 237–254. doi: 10.1134/S1995082923020037</mixed-citation></ref></ref-list><ack xml:lang="ru"><p>Отдельно авторы выражают признательность за помощь в отборе проб с. н. с. С. В. Быковой (Институт экологии Волжского бассейна РАН) и с. н. с. Н. Г. Тарасовой (Институт биологии внутренних вод им. И. Д. Папанина) за любезно
предоставленные данные физико-химических параметров.</p></ack></back></article>
