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  <front>
    <journal-meta>
      <journal-id journal-id-type="publisher-id">Ecological Safety of Coastal and Shelf Zones of Sea</journal-id>
      <journal-title-group>
        <journal-title xml:lang="en">Ecological Safety of Coastal and Shelf Zones of Sea</journal-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Экологическая безопасность прибрежной и шельфовой зон моря</trans-title>
        </trans-title-group>
      </journal-title-group>
      <issn publication-format="print">2413-5577</issn>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="publisher-id">20250302</article-id>
      <article-id pub-id-type="edn">VCOCEY</article-id>
      
      <article-categories>
        <subj-group subj-group-type="toc-heading" xml:lang="ru">
          <subject>Научная статья</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">Variability of Parameters of the Carbonate System of the Northern Black Sea Surface Waters During Coccolithophorid Blooms</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Изменчивость параметров карбонатной системы поверхностного слоя вод северной части Черного моря в период «цветения» кокколитофорид</trans-title>
        </trans-title-group>
      </title-group>

      <contrib-group>
        <contrib contrib-type="author">
          <name-alternatives>
            <name xml:lang="en">
              <surname>Orekhova</surname>
              <given-names>N. A.</given-names>
            </name>
            <name xml:lang="ru">
              <surname>Орехова</surname>
              <given-names>Н. А.</given-names>
            </name>
          </name-alternatives>
          <email>natalia.orekhova@mhi-ras.ru</email>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <contrib contrib-type="author">
          <name-alternatives>
            <name xml:lang="en">
              <surname>Korchemkina</surname>
              <given-names>E. N.</given-names>
            </name>
            <name xml:lang="ru">
              <surname>Корчёмкина</surname>
              <given-names>Е. Н.</given-names>
            </name>
          </name-alternatives>
          <email>lisenik@mail.ru</email>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <contrib contrib-type="author">
          <name-alternatives>
            <name xml:lang="en">
              <surname>Medvedev</surname>
              <given-names>E. V.</given-names>
            </name>
            <name xml:lang="ru">
              <surname>Медведев</surname>
              <given-names>Е. В.</given-names>
            </name>
          </name-alternatives>
          <email>eugenemedvedev@mhi-ras.ru</email>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <contrib contrib-type="author">
          <name-alternatives>
            <name xml:lang="en">
              <surname>Mukoseev</surname>
              <given-names>I. N.</given-names>
            </name>
            <name xml:lang="ru">
              <surname>Мукосеев</surname>
              <given-names>И. Н.</given-names>
            </name>
          </name-alternatives>
          <email>igor.mukos@gmail.com</email>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
      </contrib-group>

      <aff-alternatives id="aff1">
        <aff xml:lang="en">
          <institution>Marine Hydrophysical Institute of RAS</institution>
          <addr-line>Sevastopol</addr-line>
          <country>Russia</country>
        </aff>
        <aff xml:lang="ru">
          <institution>Морской гидрофизический институт РАН</institution>
          <addr-line>Севастополь</addr-line>
          <country>Россия</country>
        </aff>
      </aff-alternatives>

      <pub-date date-type="pub" iso-8601-date="2025-09-30" publication-format="electronic">
        <day>30</day>
        <month>09</month>
        <year>2025</year>
      </pub-date>
      <issue>3</issue>
      <fpage>25</fpage>
      <lpage>40</lpage>

      <history>
        <date date-type="received" iso-8601-date="2025-03-05">
          <day>05</day>
          <month>03</month>
          <year>2025</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="2025-05-05">
          <day>05</day>
          <month>05</month>
          <year>2025</year>
        </date>
        <date date-type="accepted" iso-8601-date="2025-06-24">
          <day>24</day>
          <month>06</month>
          <year>2025</year>
        </date>
      </history>

      <permissions>
        <copyright-statement xml:lang="en">Copyright ©; 2025, Orekhova N.A., Korchemkina E.N., Medvedev E.V., Mukoseev I.N.</copyright-statement>
        <copyright-statement xml:lang="ru">Copyright ©; 2025, Орехова Н.А., Корчёмкина Е.Н., Медведев Е.В., Мукосеев И.Н.</copyright-statement>
        <copyright-year>2025</copyright-year>
        <copyright-holder xml:lang="en">Orekhova N.A., Korchemkina E.N., Medvedev E.V., Mukoseev I.N.</copyright-holder>
        <copyright-holder xml:lang="ru">Орехова Н.А., Корчёмкина Е.Н., Медведев Е.В., Мукосеев И.Н.</copyright-holder>
        <ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/>
        <license>
          <ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by-nc/4.0/</ali:license_ref>
        </license>
      </permissions>
      <self-uri xlink:href="https://ecological-safety.ru/repository/issues/2025/03/02/" xlink:title="Страница статьи">https://ecological-safety.ru/repository/issues/2025/03/02/</self-uri>
      
      <abstract xml:lang="en">
        <p>The paper studies dynamics of carbonate system parameters during the spring-summer coccolithophores bloom using data on temperature, salinity, carbonate system parameters (СО₂, pH and alkalinity) and backscattering index (b_{bp}(550), m ⁻¹) for the northern Black Sea surface waters during the 127ᵗʰ and 131ˢᵗ cruises of R/V Professor Vodyanitsky. Within the studied periods (June 2023, May–June 2024) coccolithophores concentrations exceeded 1.00 million cells/L, while high рСО₂ (mean 486±18 μatm) was also observed. The surface water layer was oversaturated with СО₂ compared to the atmosphere, with a mean water СО₂ supersaturation of 14% (58 μatm). However, no pronounced relationship was found between coccolith concentrations and рСО₂, pH and alkalinity values, which may indicate a non-core contribution of the bloom to СО₂ concentrations in the surface waters. It was found that even during the coccolithophores blooming period, temperature is the key factor determining the surface waters рСО₂. The spatial distribution of suspended matter concentration represented by coccoliths was determined by water dynamics and current structure in the Black Sea.</p>
      </abstract>
      
      <trans-abstract xml:lang="ru">
        <p>Рассмотрена динамика параметров карбонатной системы в период весенне-летнего «цветения» кокколитофорид с использованием данных о температуре и солености, параметров карбонатной системы (СО₂, рН и щелочности) и показателя рассеяния назад взвесью (b_{bp}(550), м ⁻¹) для поверхностного слоя вод в северной части Черного моря в 127-м и 131-м рейсах НИС «Профессор Водяницкий». В исследуемые периоды (июнь 2023 г., май – июнь 2024 г.) концентрации кокколитофорид превышали 1.00 млн кл/л, также отмечено высокое значение рСО₂ (среднее 486 ± 18 мкатм). Поверхностный слой вод был пересыщен СО₂ по сравнению с атмосферой, среднее пересыщение вод СО₂ составило 14 % (58 мкатм). Однако выявлено отсутствие выраженной связи между концентрациями кокколитов и величинами рСО₂, рН и щелочности, что может указывать на неосновной вклад «цветения» в концентрации рСО₂ в поверхностном слое вод. Установлено, что даже в период «цветения» кокколитофорид ключевым фактором, определяющим величину рСО₂ поверхностного слоя вод, является температура воды. При этом пространственное распределение концентрации взвеси, представленной кокколитами, определялось динамикой вод и структурой течений в Черном море.</p>
      </trans-abstract>

      <kwd-group xml:lang="en">
        <kwd>carbonate system</kwd>
        <kwd>carbon dioxide partial pressure</kwd>
        <kwd>coccolithophores</kwd>
        <kwd>Black Sea</kwd>
      </kwd-group>
      <kwd-group xml:lang="ru">
        <kwd>карбонатная система</kwd>
        <kwd>парциальное давление углекислого газа</kwd>
        <kwd>кокколитофориды</kwd>
        <kwd>Черное море</kwd>
      </kwd-group>

      <funding-group>
        <funding-statement xml:lang="en">The work was carried out under state assignment of MHI RAS FNNN-2025-0001 "Monitoring of CO₂ concentrations in the surface water layer and atmosphere in Russian inland seas" and FNNN-2024-0012 "Analysis, diagnosis and real-time forecast of the state of hydrophysical and hydrochemical fields of marine water areas based on mathematical modelling using data from remote and in situ methods of measurements".</funding-statement>
        <funding-statement xml:lang="ru">Работа выполнена в рамках государственного задания ФИЦ МГИ РАН FNNN-2025-0001 «Мониторинг концентрации СО₂ в поверхностном слое вод и атмосфере во внутренних морях России» и FNNN-2024-0012 «Оперативная океанология». Данные получены в 127-м и 131-м рейсах НИС «Профессор Водяницкий» (Центр коллективного пользования «НИС Профессор Водяницкий» Федерального государственного бюджетного учреждения науки Федерального исследовательского центра «Институт биологии южных морей имени А. О. Ковалевского Российской академии наук»).</funding-statement>
      </funding-group>
    </article-meta>
  </front>

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    <p>Текст статьи не включен.</p>
  </body>

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