1 Ocak 2024 Dergi makalesi Açık Erişim

Cokacar, Tulay; Altiok, Husne; Mutlu, Sabri; Yuksek, Ahsen; Ediger, Dilek; Partal, Fatma Bayram

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        "affiliation": "Istanbul Univ, Inst Marine Sci & Management, Phys Oceanog Dept, Istanbul, Turkiye", 
        "name": "Cokacar, Tulay"
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      {
        "affiliation": "Istanbul Univ, Inst Marine Sci & Management, Phys Oceanog Dept, Istanbul, Turkiye", 
        "name": "Altiok, Husne"
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      {
        "name": "Mutlu, Sabri"
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      {
        "affiliation": "Istanbul Univ, Inst Marine Sci & Management, Phys Oceanog Dept, Istanbul, Turkiye", 
        "name": "Yuksek, Ahsen"
      }, 
      {
        "affiliation": "Istanbul Univ, Inst Marine Sci & Management, Phys Oceanog Dept, Istanbul, Turkiye", 
        "name": "Ediger, Dilek"
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      {
        "affiliation": "TUBITAK, Marmara Res Ctr, Climate Change & Sustainabil VP, Gebze, Kocaeli, Turkiye", 
        "name": "Partal, Fatma Bayram"
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    "description": "<p>In December 2021 and March 2022, synoptic-scale weather systems triggered blockages in the &amp; Idot;stanbul Strait, resulting in a notable alteration of the water dynamics of the upper layer of the northeastern Marmara Sea. The blockages resulted in the disruption of water mass exchanges between &amp; Idot;zmit Bay and the eastern Marmara basin, driven by intensified hydrodynamic forces and severe wind conditions. The blockage of the two-layer flow in the strait led to an intensification of upper layer dynamics, resulting in an elevation of nutrient levels through mixing with nutrient-rich lower waters and/or the redistribution of nutrient fluxes via an enhanced jet current. This study demonstrates the occurrence of rapid changes in the biochemical structure of &amp; Idot;zmit Bay, as evidenced by Acostic Poppler Current Profiler (ADCP) measurements and near-weekly temperature and salinity profiles. The analyses demonstrate significant shifts in flow dynamics, with salinity serving as an indicator of enhanced mixing. This mixing enabled the transport of nutrient-rich deep waters to the upper productive layer, thereby stimulating increased biological activity. The findings highlight that the altered dynamics resulted in a notable surge in nutrient concentrations and biochemical activity, potentially fostering the expansion of mucilage-forming species in &amp; Idot;zmit Bay.</p>", 
    "doi": "10.4194/TRJFAS26712", 
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      "issue": "12", 
      "pages": "16", 
      "title": "TURKISH JOURNAL OF FISHERIES AND AQUATIC SCIENCES", 
      "volume": "24"
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    "science_branches": [
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    "title": "Alterations of the Physical and Biochemical Structure in the \u0130zmit Bay Following the Blockage Events at the \u0130stanbul Strait"
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