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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">koz</journal-id><journal-title-group><journal-title xml:lang="ru">"Вестник Северо-Казахстанского университета имени Манаша Козыбаева"</journal-title><trans-title-group xml:lang="en"><trans-title>Bulletin of Manash Kozybayev North Kazakhstan University</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2958-003X</issn><issn pub-type="epub">2958-0048</issn><publisher><publisher-name>М. Қозыбаев атындағы СҚУ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.54596/2958-0048-2026-1-57-70</article-id><article-id custom-type="elpub" pub-id-type="custom">koz-2449</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>БИОЛОГИЧЕСКИЕ НАУКИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BIOLOGICAL SCIENCES</subject></subj-group></article-categories><title-group><article-title>РАСПРОСТРАНЕНИЕ ВИДОВ РЫБ В СЕВЕРНОЙ АКВАТОРИИ КАСПИЙСКОГО МОРЯ</article-title><trans-title-group xml:lang="en"><trans-title>DISTRIBUTION OF FISH SPECIES IN THE NORTHERN WATERS OF THE CASPIAN SEA</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0445-5400</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Абилов</surname><given-names>Б. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Abilov</surname><given-names>B. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алматы</p></bio><bio xml:lang="en"><p>corresponding member of the National Academy of Sciences of the Republic of Kazakhstan, Doctor PhD, leading researcher</p><p>Almaty</p></bio><email xlink:type="simple">b.i.abilov@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Асылбекова</surname><given-names>С. Ж.</given-names></name><name name-style="western" xml:lang="en"><surname>Asylbekova</surname><given-names>S. Zh.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алматы</p></bio><bio xml:lang="en"><p>Doctor of Biological Sciences, Professor, Academician of the National Academy of Sciences of the Republic of Kazakhstan, first deputy general director </p><p>Almaty</p></bio><email xlink:type="simple">assylbekova@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Исбеков</surname><given-names>К. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Isbekov</surname><given-names>K. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алматы</p></bio><bio xml:lang="en"><p>Doctor of Biological Sciences, Professor, Academician of the National Academy of Sciences of the Republic of Kazakhstan, Head of the Science Department </p><p>Almaty</p></bio><email xlink:type="simple">isbekov@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бараков</surname><given-names>Р. Т.</given-names></name><name name-style="western" xml:lang="en"><surname>Barakov</surname><given-names>R. T.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алматы</p></bio><bio xml:lang="en"><p>Doctor PhD, senior researcher</p><p>Almaty</p></bio><email xlink:type="simple">barakovrin@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Булавина</surname><given-names>Н. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Bulavina</surname><given-names>N. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алматы</p></bio><bio xml:lang="en"><p>Head of the Aquaculture Laboratory</p><p>Almaty</p></bio><email xlink:type="simple">bnb@bk.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">ТОО «Научно-производственный центр рыбного хозяйства»<country>Казахстан</country></aff><aff xml:lang="en">"Scientific production center of Fisheries" LLP<country>Kazakhstan</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>08</day><month>04</month><year>2026</year></pub-date><volume>0</volume><issue>1 (69)</issue><fpage>57</fpage><lpage>70</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Абилов Б.И., Асылбекова С.Ж., Исбеков К.Б., Бараков Р.Т., Булавина Н.Б., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Абилов Б.И., Асылбекова С.Ж., Исбеков К.Б., Бараков Р.Т., Булавина Н.Б.</copyright-holder><copyright-holder xml:lang="en">Abilov B.I., Asylbekova S.Z., Isbekov K.B., Barakov R.T., Bulavina N.B.</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://vestnik.ku.edu.kz/jour/article/view/2449">https://vestnik.ku.edu.kz/jour/article/view/2449</self-uri><abstract><p>В статье приводится распространение рыб в северной части Каспийского моря и их биологические показатели. В рамках научно-исследовательской работы было отловлено 18 видов рыб, относящихся к 7 семействам. Статья посвящена анализу особенностей современного распространения ихтиофауны в северной акватории Каспийского моря. По результатам исследования установлено, что пространственное распределение видов рыб напрямую зависит от гидрологических условий, колебаний солености воды, перепадов глубин и характера питательной базы. В структуре ихтиофауны наблюдается преобладание таких экологически гибких видов, как лещ, вобла и судак, что свидетельствует об их высокой приспособляемости к условиям северного Каспия. Кроме того, доля осетровых остается относительно низкой, а их распространение объясняется ограниченностью нерестилищ и влиянием антропогенных факторов. Полученные данные позволят оценить состояние рыбных ресурсов в северной части Каспийского моря, разработать научно обоснованные рекомендации по сохранению биологического разнообразия и устойчивому развитию рыбного хозяйства.</p></abstract><trans-abstract xml:lang="en"><p>The article describes the distribution of fish in the northern part of the Caspian Sea and their biological indicators. As part of the research work, 18 species of fish belonging to 7 families were caught. The article is devoted to the analysis of the features of the modern distribution of ichthyofauna in the northern waters of the Caspian Sea. According to the results of the study, it was found that the spatial distribution of fish species directly depends on hydrological conditions, fluctuations in water salinity, depth fluctuations and the nature of the nutrient base. In the structure of the ichthyological community, there is a predominance of such ecologically flexible species as Abramis brama, Rutilus rutilus and Sander lusioperca, which indicates their high adaptability to the conditions of the northern Caspian Sea. In addition, the proportion of sturgeons remains relatively low, and their distribution is explained by the limited spawning grounds and the influence of anthropogenic factors. The data obtained will make it possible to assess the state of fish resources in the northern part of the Caspian Sea, develop scientifically sound recommendations for the conservation of biological diversity and sustainable development of fisheries.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>акватория</kwd><kwd>Каспийское море</kwd><kwd>ихтиофауна</kwd><kwd>распространение</kwd><kwd>экология</kwd><kwd>интерполяция</kwd></kwd-group><kwd-group xml:lang="en"><kwd>water area</kwd><kwd>Caspian sea</kwd><kwd>ichthyofauna</kwd><kwd>distribution</kwd><kwd>ecology</kwd><kwd>interpolation</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">Fazli H., Daryanabard G.R., Pourgholami A. et al. 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