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  <front>
    <journal-meta>
      <journal-id journal-id-type="publisher-id">Morskoj gidrofizičeskij žurnal</journal-id>
      <journal-title-group>
        <journal-title xml:lang="en">Morskoj gidrofizičeskij žurnal</journal-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Морской гидрофизический журнал</trans-title>
        </trans-title-group>
      </journal-title-group>
      <issn publication-format="print">0233-7584</issn>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="publisher-id">20260408</article-id>
      <article-id pub-id-type="edn">VEHZOQ</article-id>

      <article-categories>
        <subj-group subj-group-type="toc-heading" xml:lang="ru">
          <subject>Математическое моделирование морских систем</subject>
        </subj-group>
        <subj-group subj-group-type="toc-heading" xml:lang="en">
          <subject>Mathematical modeling of marine system</subject>
        </subj-group>
        <subj-group subj-group-type="article-type">
          <subject>Research Article</subject>
        </subj-group>
      </article-categories>

      <title-group>
        <article-title xml:lang="ru">Поглощение света основными оптически активными компонентами шельфовых вод Камчатского полуострова (август – сентябрь 2023 года). Часть I. Фитопланктон</article-title>
        <trans-title-group xml:lang="en">
          <trans-title>Light Absorption by Main Optically Active Components in Shelf Waters of the Kamchatka Peninsula (August – September, 2023). Part 1. Phytoplankton</trans-title>
        </trans-title-group>
      </title-group>

      <contrib-group>
        <contrib contrib-type="author">
          <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0045-7284</contrib-id>
          <contrib-id contrib-id-type="researcherid">O-8437-2016</contrib-id>
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            <name xml:lang="ru">
              <surname>Чурилова</surname>
              <given-names>Т. Я.</given-names>
            </name>
            <name xml:lang="en">
              <surname>Churilova</surname>
              <given-names>T. Ya.</given-names>
            </name>
          </name-alternatives>
          <address>
            <country country="RU">Russian Federation</country>
          </address>
          <bio xml:lang="ru"><p>ведущий научный сотрудник, лаборатория фотосинтеза и биооптики моря, ФГБУН ФИЦ ИнБЮМ (299011, Россия, г. Севастополь, пр-т Нахимова, д. 2); ведущий научный сотрудник, лаборатория экологии и эволюционной биологии водных организмов Института Мирового океана (школы), ДВФУ (690922, Россия, г. Владивосток, о. Русский, п. Аякс, 10), кандидат биологических наук</p></bio>
          <email>tanya.churilova@gmail.com</email>
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        <contrib contrib-type="author">
          <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3057-3964</contrib-id>
          <contrib-id contrib-id-type="researcherid">A-6831-2019</contrib-id>
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            <name xml:lang="ru">
              <surname>Скороход</surname>
              <given-names>Е. Ю.</given-names>
            </name>
            <name xml:lang="en">
              <surname>Skorokhod</surname>
              <given-names>E. Yu.</given-names>
            </name>
          </name-alternatives>
          <address>
            <country country="RU">Russian Federation</country>
          </address>
          <bio xml:lang="ru"><p>научный сотрудник, лаборатория фотосинтеза и биооптики моря, ФГБУН ФИЦ ИнБЮМ (299011, Россия, г. Севастополь, пр-т. Нахимова, д. 2); младший научный сотрудник, лаборатория экологии и эволюционной биологии водных организмов Института Мирового океана (школы), ДВФУ (690922, Россия, г. Владивосток, о. Русский, п. Аякс, 10)</p></bio>
          <email>elenaskorokhod@ibss-ras.ru</email>
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        <contrib contrib-type="author">
          <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1356-7981</contrib-id>
          <contrib-id contrib-id-type="researcherid">AAH-2819-2019</contrib-id>
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          <contrib-id contrib-id-type="spin">8946-3315</contrib-id>
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            <name xml:lang="ru">
              <surname>Моисеева</surname>
              <given-names>Н. А.</given-names>
            </name>
            <name xml:lang="en">
              <surname>Moiseeva</surname>
              <given-names>N. A.</given-names>
            </name>
          </name-alternatives>
          <address>
            <country country="RU">Russian Federation</country>
          </address>
          <bio xml:lang="ru"><p>научный сотрудник, лаборатория фотосинтеза и биооптики моря, ФГБУН ФИЦ ИнБЮМ (299011, Россия, г. Севастополь, пр-т. Нахимова, д. 2)</p></bio>
          <email>moiseeva@ibss-ras.ru</email>
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        <contrib contrib-type="author">
          <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1853-4671</contrib-id>
          <contrib-id contrib-id-type="researcherid">B-2280-2013</contrib-id>
          <contrib-id contrib-id-type="scopus">38661041800</contrib-id>
          <contrib-id contrib-id-type="spin">4364-8832</contrib-id>
          <name-alternatives>
            <name xml:lang="ru">
              <surname>Бучельников</surname>
              <given-names>А. С.</given-names>
            </name>
            <name xml:lang="en">
              <surname>Buchelnikov</surname>
              <given-names>A. S.</given-names>
            </name>
          </name-alternatives>
          <address>
            <country country="RU">Russian Federation</country>
          </address>
          <bio xml:lang="ru"><p>ведущий научный сотрудник, лаборатория фотосинтеза и биооптики моря, ФГБУН ФИЦ ИнБЮМ (299011, Россия, г. Севастополь, пр-т Нахимова, д. 2); доцент, кафедра «физика», СевГУ (299053, Россия, г. Севастополь, ул. Университетская, 33), кандидат физико-математических наук, доцент</p></bio>
          <email>buchelnikov@ibss-ras.ru</email>
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        <contrib contrib-type="author">
          <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3908-4160</contrib-id>
          <contrib-id contrib-id-type="researcherid">X-1355-2019</contrib-id>
          <contrib-id contrib-id-type="scopus">57194423783</contrib-id>
          <contrib-id contrib-id-type="spin">1668-0742</contrib-id>
          <name-alternatives>
            <name xml:lang="ru">
              <surname>Ефимова</surname>
              <given-names>Т. В.</given-names>
            </name>
            <name xml:lang="en">
              <surname>Efimova</surname>
              <given-names>T. V.</given-names>
            </name>
          </name-alternatives>
          <address>
            <country country="RU">Russian Federation</country>
          </address>
          <bio xml:lang="ru"><p>старший научный сотрудник, лаборатория фотосинтеза и биооптики моря, ФГБУН ФИЦ ИнБЮМ (299011, Россия, г. Севастополь, пр-т. Нахимова, д. 2); старший научный сотрудник, лаборатория экологии и эволюционной биологии водных организмов Института Мирового океана (школы), ДВФУ (690922, Россия, г. Владивосток, о. Русский, п. Аякс, 10), кандидат биологических наук</p></bio>
          <email>tefimova@ibss-ras.ru</email>
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        </contrib>
        <contrib contrib-type="author">
          <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3224-710X</contrib-id>
          <contrib-id contrib-id-type="researcherid">E-8592-2014</contrib-id>
          <contrib-id contrib-id-type="scopus">9737122900</contrib-id>
          <contrib-id contrib-id-type="spin">1454-3891</contrib-id>
          <name-alternatives>
            <name xml:lang="ru">
              <surname>Салюк</surname>
              <given-names>П. А.</given-names>
            </name>
            <name xml:lang="en">
              <surname>Salyuk</surname>
              <given-names>P. A.</given-names>
            </name>
          </name-alternatives>
          <address>
            <country country="RU">Russian Federation</country>
          </address>
          <bio xml:lang="ru"><p>заведующий лабораторией, лаборатория спутниковой океанологии и лазерного зондирования, ТОИ ДВО РАН (690041, Россия, г. Владивосток, ул. Балтийская, д. 43), кандидат физико-математических наук</p></bio>
          <email>pavel.salyuk@gmail.com</email>
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        <contrib contrib-type="author">
          <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3975-5438</contrib-id>
          <contrib-id contrib-id-type="researcherid">I-3720-2017</contrib-id>
          <contrib-id contrib-id-type="scopus">55189937800</contrib-id>
          <contrib-id contrib-id-type="spin">5704-5884</contrib-id>
          <name-alternatives>
            <name xml:lang="ru">
              <surname>Яцук</surname>
              <given-names>А. В.</given-names>
            </name>
            <name xml:lang="en">
              <surname>Yatsuk</surname>
              <given-names>A. V.</given-names>
            </name>
          </name-alternatives>
          <address>
            <country country="RU">Russian Federation</country>
          </address>
          <bio xml:lang="ru"><p>ведущий научный сотрудник, Международный научный центр в области экологии и вопросов изменения климата, НТУ «Сириус» (354340, Россия, ФТ «Сириус», Олимпийский пр., д. 1), кандидат геолого-минералогических наук</p></bio>
          <email>yatsuk.av@talantiuspeh.ru</email>
          <xref ref-type="aff" rid="aff5"/>
        </contrib>
      </contrib-group>

      <aff-alternatives id="aff1">
        <aff xml:lang="ru">
          <institution>ФГБУН ФИЦ Институт биологии южных морей имени А. О. Ковалевского РАН</institution>
          <addr-line>Севастополь</addr-line>
          <country>Россия</country>
        </aff>
        <aff xml:lang="en">
          <institution>A. O. Kovalevsky Institute of Biology of the Southern Seas of RAS</institution>
          <addr-line>Sevastopol</addr-line>
          <country>Russia</country>
        </aff>
      </aff-alternatives>

      <aff-alternatives id="aff2">
        <aff xml:lang="ru">
          <institution>Дальневосточный федеральный университет</institution>
          <addr-line>Владивосток</addr-line>
          <country>Россия</country>
        </aff>
        <aff xml:lang="en">
          <institution>Far Eastern Federal University</institution>
          <addr-line>Vladivostok</addr-line>
          <country>Russia</country>
        </aff>
      </aff-alternatives>

      <aff-alternatives id="aff3">
        <aff xml:lang="ru">
          <institution>Севастопольский государственный университет</institution>
          <addr-line>Севастополь</addr-line>
          <country>Россия</country>
        </aff>
        <aff xml:lang="en">
          <institution>Sevastopol State University</institution>
          <addr-line>Sevastopol</addr-line>
          <country>Russia</country>
        </aff>
      </aff-alternatives>

      <aff-alternatives id="aff4">
        <aff xml:lang="ru">
          <institution>Тихоокеанский океанологический институт им. В. И. Ильичёва ДВО РАН</institution>
          <addr-line>Владивосток</addr-line>
          <country>Россия</country>
        </aff>
        <aff xml:lang="en">
          <institution>V. I. Il’ichev Pacific Oceanological Institute, Far Eastern Branch of Russian Academy of Sciences</institution>
          <addr-line>Vladivostok</addr-line>
          <country>Russia</country>
        </aff>
      </aff-alternatives>

      <aff-alternatives id="aff5">
        <aff xml:lang="ru">
          <institution>Научно-технологический университет «Сириус»</institution>
          <addr-line>Сириус</addr-line>
          <country>Россия</country>
        </aff>
        <aff xml:lang="en">
          <institution>Sirius University of Science and Technology</institution>
          <addr-line>Sirius</addr-line>
          <country>Russia</country>
        </aff>
      </aff-alternatives>

      <pub-date date-type="pub" iso-8601-date="2026-08-31" publication-format="electronic">
        <day>31</day>
        <month>08</month>
        <year>2026</year>
      </pub-date>
      <volume>42</volume>
      <issue>4</issue>
      <fpage>628</fpage>
      <lpage>653</lpage>

      <history>
        <date date-type="received" iso-8601-date="2026-03-27">
          <day>27</day>
          <month>03</month>
          <year>2026</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="2026-04-21">
          <day>21</day>
          <month>04</month>
          <year>2026</year>
        </date>
        <date date-type="accepted" iso-8601-date="2026-05-20">
          <day>20</day>
          <month>05</month>
          <year>2026</year>
        </date>
      </history>

      <permissions>
        <copyright-statement xml:lang="ru">Copyright ©; 2026, Чурилова Т.Я., Скороход Е.Ю., Моисеева Н.А., Бучельников А.С., Ефимова Т.В., Салюк П.А., Яцук А.В.</copyright-statement>
        <copyright-statement xml:lang="en">Copyright ©; 2026, Churilova T.Ya., Skorokhod E.Yu., Moiseeva N.A., Buchelnikov A.S., Efimova T.V., Salyuk P.A., Yatsuk A.V.</copyright-statement>
        <copyright-year>2026</copyright-year>
        <copyright-holder xml:lang="ru">Чурилова Т.Я., Скороход Е.Ю., Моисеева Н.А., Бучельников А.С., Ефимова Т.В., Салюк П.А., Яцук А.В.</copyright-holder>
        <copyright-holder xml:lang="en">Churilova T.Ya., Skorokhod E.Yu., Moiseeva N.A., Buchelnikov A.S., Efimova T.V., Salyuk P.A., Yatsuk A.V.</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://xn--c1agq7a.xn--p1ai/repository/issues/2026/04/08/" xlink:title="Страница статьи">https://xn--c1agq7a.xn--p1ai/repository/issues/2026/04/08/</self-uri>

      <abstract xml:lang="ru">
        <p><bold>Цель.</bold> Цель работы – анализ пространственной изменчивости концентрации хлорофилла a (TChl-a) и спектральных показателей поглощения света пигментами фитопланктона (aph(λ)), определение зависимости aph(λ) от TChl-a в диапазоне длин волн от 400 до 700 нм с шагом 2 нм для разных слоев зоны фотосинтеза.</p>
        <p><bold>Методы и результаты.</bold> Исследования выполнены в августе – сентябре 2023 г. на 79 станциях. Пробы воды отбирали батометрами, концентрацию хлорофилла a определяли спектрофотометрически, спектральные показатели поглощения – на увлажненных стекловолокнистых фильтрах с использованием интегрирующей сферы. Вертикальную структуру анализировали по данным CTD, флуоресценции хлорофилла a и фотосинтетически активной радиации (PAR). Выделены верхний квазиоднородный слой (UML) и нижележащие слои до глубин с 1 и 0,1 % PAR. Параметризация выполнена степенной функцией aph(λ) = A(λ) · TChl-aB(λ) для двух слоев зоны фотосинтеза и нижележащего слоя. TChl-a в поверхностном слое варьировала от 0,7 до 14 мг·м-3 в Тихом океане и от 0,87 до 8,9 мг·м-3 в Охотском море. Выявлено четыре типа вертикального профиля TChl-a, обусловленных стратификацией вод и поступлением биогенных элементов. Коэффициенты A(438) и A(675) для UML составили 0,058 и 0,023 м2·мг-1; для слоя между UML и границей зоны фотосинтеза – 0,043 и 0,020 м2·мг-1. Показано, что удельное поглощение aph*(λ) при одинаковой освещенности снижается с ростом TChl-a, что связано с увеличением степени упаковки пигментов с ростом доли крупноклеточных видов в фитопланктоне.</p>
        <p><bold>Выводы.</bold> Впервые для исследуемой акватории выполнена параметризация поглощения света пигментами фитопланктона в диапазоне длин волн от 400 до 700 нм (с разрешением в 2 нм) для двух слоев в зоне фотосинтеза и нижележащего слоя. Выявлены статистически значимые различия коэффициентов параметризации между слоями. Полученные зависимости могут быть использованы для восстановления спектров aph(λ) по TChl-a, что необходимо для оценки фотосинтетических характеристик фитопланктона и расчета первичной продукции спектральным методом, а также для разработки региональных спутниковых алгоритмов и организации оперативного мониторинга продуктивности вод вблизи полуострова Камчатка.</p>
      </abstract>

      <trans-abstract xml:lang="en">
        <p><bold>Purpose.</bold> The purpose of the study is to analyse the spatial variability of chlorophyll a concentration (TChl-a) and spectral coefficients of light absorption by phytoplankton (aph(λ)), as well as to determine the relationship between aph(λ) and TChl-a in the wavelength range from 400 to 700 nm with the 2 nm step for different layers of the euphotic zone.</p>
        <p><bold>Methods and Results.</bold> The research was carried out at 79 stations in August – September, 2023. Water samples were collected using the Niskin bottles, chlorophyll a concentration was determined spectrophotometrically, and spectral absorption coefficients were measured on the moistened glass fiber filters using an integrating sphere. The vertical structure was analysed based on the CTD data, chlorophyll a fluorescence, and photosynthetically available radiation (PAR). The upper mixed layer (UML) and the underlying layers down to the depths with 1 and 0.1 % of PAR have been identified. The parameterization was done using a power function aph(λ) = A(λ) · TChl-aB(λ) for two layers of the euphotic zone and the underlying layer. TChl-a in the surface layer varied within 0.7–14 mg·m−3 in the Pacific Ocean and within 0.87–8.9 mg·m−3 in the Sea of Okhotsk. Four types have been identified. Their formation is a result of water stratification, its location within euphotic zone and nutrient supply. The coefficients А(438) and А (675) were 0.058 and 0.023 m²·mg⁻¹ for UML, and 0.043 and 0.020 m²·mg⁻¹ for the layer between UML and the bottom of the euphotic zone. It was shown that at the same light intensity, the chlorophyll a specific absorption coefficient a*ph (λ) decreased with increasing TChl-a, which was related to the stronger pigment package effect as the proportion of large-celled species in phytoplankton increased.</p>
        <p><bold>Conclusions.</bold> For the first time, parameterization of light absorption by phytoplankton for the study area is done within the 400–700 nm range (with the 2 nm step) for two layers in the euphotic zone and for the underlying one. Statistically significant differences between the parameterization coefficients of these layers are revealed. The obtained relationships can be used to retrieve the aph(λ) spectra from TChl-a, that is necessary for assessing the photosynthetic characteristics of phytoplankton and determining primary production using the spectral method, as well as for developing the regional satellite algorithms and operational monitoring of water productivity off the Kamchatka Peninsula.</p>
      </trans-abstract>

      <kwd-group xml:lang="ru">
        <kwd>хлорофилл</kwd>
        <kwd>спектральный показатель поглощения света</kwd>
        <kwd>фитопланктон</kwd>
        <kwd>шельфовые воды</kwd>
        <kwd>Камчатка</kwd>
      </kwd-group>
      <kwd-group xml:lang="en">
        <kwd>chlorophyll</kwd>
        <kwd>spectral light absorption coefficient</kwd>
        <kwd>phytoplankton</kwd>
        <kwd>shelf waters</kwd>
        <kwd>Kamchatka</kwd>
      </kwd-group>

      <funding-group>
        <funding-statement xml:lang="ru">Отбор проб во время научного рейса проводился в рамках научно-образовательной программы «Плавучий университет» (соглашение № 075-01593-23-06), обработка данных, первичный анализ влияния факторов среды на концентрацию хлорофилла а проводились в рамках государственного задания ФИЦ ИнБЮМ № 124030100106-2, вертикальные профили флуоресценции хлорофилла а измерялись в рамках государственного задания ТОИ ДВО РАН № 124022100080-0, исследование изменчивости биооптических свойств финансировалось Министерством науки и высшего образования Российской Федерации, проект № FZNS-2024-0037.</funding-statement>
        <funding-statement xml:lang="en">During the scientific cruise, water samples were taken within the framework of scientific and educational program “Floating University” (agreement No. 075-01593-23-06); data processing and primary analysis of the impact of environmental factors upon the chlorophyll a concentration were done within the framework of state assignment of FRC IBSS No. 124030100106-2; vertical profiles of chlorophyll a fluorescence were measured within the framework of state assignment of POI FEB of RAS No. 124022100080-0; and the study of variability of bio-optical properties was funded by the Ministry of Science and Higher Education of Russian Federation, project No. FZNS-2024-0037.</funding-statement>
      </funding-group>
    </article-meta>
  </front>

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

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