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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="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Russian Journal of Physiology</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Physiology</journal-title><trans-title-group xml:lang="ru"><trans-title>Российский физиологический журнал им. И.М. Сеченова</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0869-8139</issn><issn publication-format="electronic">2658-655X</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">651593</article-id><article-id pub-id-type="doi">10.31857/S086981392303010X</article-id><article-id pub-id-type="edn">FSZGDZ</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>EXPERIMENTAL ARTICLES</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ЭКСПЕРИМЕНТАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Analysis of the Elemental Composition of Gonads, Gametes and Larvae of the Mussel <italic>Mytilus galloprovincialis</italic> in the Spawning Period</article-title><trans-title-group xml:lang="ru"><trans-title>Анализ элементного состав гонад, половых продуктов и личинок мидии <italic>Mytilus galloprovincialis</italic> в период нереста</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kapranova</surname><given-names>L. L.</given-names></name><name xml:lang="ru"><surname>Капранова</surname><given-names>Л. Л.</given-names></name></name-alternatives><email>lar_sa1980@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Ryabushko</surname><given-names>V. I.</given-names></name><name xml:lang="ru"><surname>Рябушко</surname><given-names>В. И.</given-names></name></name-alternatives><email>lar_sa1980@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kapranov</surname><given-names>S. V.</given-names></name><name xml:lang="ru"><surname>Капранов</surname><given-names>С. В.</given-names></name></name-alternatives><email>lar_sa1980@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Kovalevsky Institute of Biology of the Southern Seas of RAS</institution></aff><aff><institution xml:lang="ru">Институт биологии южных морей им. А.О. Ковалевского РАН</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-03-01" publication-format="electronic"><day>01</day><month>03</month><year>2023</year></pub-date><volume>109</volume><issue>3</issue><fpage>386</fpage><lpage>396</lpage><history><date date-type="received" iso-8601-date="2025-02-01"><day>01</day><month>02</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, Л.Л. Капранова, В.И. Рябушко, С.В. Капранов</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, Л.Л. Капранова, В.И. Рябушко, С.В. Капранов</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">Л.Л. Капранова, В.И. Рябушко, С.В. Капранов</copyright-holder><copyright-holder xml:lang="ru">Л.Л. Капранова, В.И. Рябушко, С.В. Капранов</copyright-holder></permissions><self-uri xlink:href="https://transsyst.ru/0869-8139/article/view/651593">https://transsyst.ru/0869-8139/article/view/651593</self-uri><abstract xml:lang="en"><p id="idm45181324382688">In this work, we studied the elemental composition of gonads, eggs, sperm and larvae of the mussel <italic>Mytilus galloprovincialis</italic> during spawning, when the contents of biologically active compounds and minerals are maximal. A comparative analysis of the contents showed that the elements are involved in the mussel gametogenesis in different pathways. There were significant differences in the contents of Li, B, Mg, Si, P, K, Ca, V, Cr, Mn, Fe, Co, Ni, Zn, Ge, As, Se, Br, Rb, Sr, Mo, Pd, Sn, I, Ba and Ce in male and female gonads before and after spawning, gametes and larvae of mussels. It is likely that some of the listed elements are not only passively accumulated in the mollusk body, but are also essential, being directly involved in the reproduction process. Most of significant differences in the element contents were found between eggs and larvae and between male gonads before spawning and sperm. By spawning, mussel gonads accumulated mainly p- and d-elements, apparently due to the ability of their ions to form complexes and, consequently, to be included in the structure of enzymes. The contents of B, Mg, Si, P, K, Ca, Cr, Mn, Fe, Cu, Zn, As, Se, Br, Sr and Ba in male and female gonads, gametes and larvae were an order or several orders of magnitude higher than those of other elements. The contents of Ca, Fe, Sr, Sn and I in mussel larvae were significantly higher than in gonads and gametes. Sn is a technological hydropollutant, and thus, larvae can serve as a bioindicator of the aquatic environment pollution with this element. The data obtained are of practical interest for improving the biotechnology of reproduction of marine hydrobionts and obtaining functional products based on them, which is important for the optimization of aquaculture management and for addressing human health-related issues.</p></abstract><trans-abstract xml:lang="ru"><p id="idm45181324380512">В настоящей работе исследован элементный состав гонад, яйцеклеток, сперматозоидов и личинок мидии <italic>Mytilus galloprovincialis</italic> в период нереста, когда концентрации биологически активных и минеральных веществ максимальны. Сравнительный анализ концентраций показал, что элементы по-разному вовлечены в гаметогенез мидии. Отмечены значимые различия в содержании Li, B, Mg, Si, P, K, Ca, V, Cr, Mn, Fe, Co, Ni, Zn, Ge, As, Se, Br, Rb, Sr, Mo, Pd, Sn, I, Ba, Ce в гонадах самцов и самок до и после нереста, в половых продуктах и личинках мидии. Вероятно, некоторые из перечисленных элементов не только пассивно накапливаются в организме моллюсков, но и являются эссенциальными, будучи непосредственно вовлечены в процесс размножения. Больше всего значимых различий в элементном составе обнаружено между яйцеклетками и личинками, а также между гонадами самцов до нереста и сперматозоидами. Во время нереста гонады мидий преимущественно накапливают p- и d-элементы, видимо, из-за способности ионов таких элементов к комплексообразованию и, следовательно, включения в структуру ферментов. Содержание B, Mg, Si, P, K, Ca, Cr, Mn, Fe, Cu, Zn, As, Se, Br, Sr, Ba в гонадах самцов и самок, половых продуктах и личинках на порядок или несколько порядков выше, чем других элементов. Содержание Ca, Fe, Sr, Sn, I в личинках мидий достоверно выше, чем в гонадах и половых продуктах. Sn – технологический гидрополлютант, поэтому личинки могут служить биоиндикатором загрязнения водной среды этим элементом. Полученные данные представляют практический интерес для совершенствования биотехники воспроизводства морских гидробионтов и получения функциональных продуктов на их основе, что важно для оптимизации менеджмента аквакультуры и для решения проблем, связанных со здоровьем человека.</p></trans-abstract><kwd-group xml:lang="en"><kwd>mussel <italic>Mytilus galloprovincialis</italic></kwd><kwd>gonads</kwd><kwd>sperm</kwd><kwd>eggs</kwd><kwd>larvae</kwd><kwd>elements</kwd><kwd>Black Sea</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>мидия <italic>Mytilus galloprovinciali</italic>s</kwd><kwd>гонады</kwd><kwd>сперматозоиды</kwd><kwd>яйцеклетки</kwd><kwd>личинки</kwd><kwd>элементы</kwd><kwd>Черное море</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Kapranova LL, Ryabushko VI, Kapranov SV, Lishaev VN, Nekhoroshev MV (2021) Elemental composition of gonads, gametes and larvae in black and brown morphs of the Bivalve Mollusk Mytilus galloprovincialis LAM. 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