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<p>Water stress is an urgent issue in many regions worldwide, particularly in southern European countries. This study reveals the consequences of decreased freshwater flow on marine ecosystems in the Mediterranean Sea due to climate change and escalating water demands. A 41% reduction in river flow may result in a 10% decline in marine primary productivity and a 6% decrease in biomass of commercial fish and invertebrate species. Regional reductions could be as high as 12% and 35%, disrupting coastal and marine ecosystems and their related socio-economic sectors. The findings emphasize the importance of considering nutrient load changes in water management strategies and incorporating marine ecosystem requirements into environmental flow requirements for freshwater bodies. Integrated, source-to-sink management approaches are crucial for sustainable water resource utilization.</p>

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The overlooked impacts of freshwater scarcity on oceans as evidenced by the Mediterranean Sea

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年2月3日

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  • Diego Macias,
  • Berny Bisselink,
  • Cesar Carmona-Moreno,
  • Jean-Noël Druon,
  • Olaf Duteil,
  • Elisa Garcia-Gorriz,
  • Bruna Grizzetti,
  • Jordi Guillen,
  • Svetla Miladinova,
  • Alberto Pistocchi,
  • Chiara Piroddi,
  • Luca Polimene,
  • Natalia Serpetti,
  • Adolf Stips,
  • Ioannis Trichakis,
  • Angel Udias,
  • Olga Vigiak

摘要

Water stress is an urgent issue in many regions worldwide, particularly in southern European countries. This study reveals the consequences of decreased freshwater flow on marine ecosystems in the Mediterranean Sea due to climate change and escalating water demands. A 41% reduction in river flow may result in a 10% decline in marine primary productivity and a 6% decrease in biomass of commercial fish and invertebrate species. Regional reductions could be as high as 12% and 35%, disrupting coastal and marine ecosystems and their related socio-economic sectors. The findings emphasize the importance of considering nutrient load changes in water management strategies and incorporating marine ecosystem requirements into environmental flow requirements for freshwater bodies. Integrated, source-to-sink management approaches are crucial for sustainable water resource utilization.