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Van Fish: Kidney Changes During Their Big Swim

Lake Van, TurkeySunday, December 28, 2025
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Lake Van's Unique Challenge Van fish inhabit Lake Van, a body of water unlike typical freshwater lakes. Each year, they undertake an arduous upstream journey to spawn, navigating significant environmental changes.

Kidney Adaptations Scientists examined kidney tissue from fish in various locations and discovered remarkable adaptations:

  • Structural Changes: The tubes and filters in the kidneys varied in size based on the fish's location.
  • Protein and Cell Activity: Special proteins and dying cells were more prevalent in different parts of the journey, indicating the fish's body working hard to adapt.

Blood Chemistry Insights Analysis of the fish's blood revealed varying levels of chemicals like urea and sodium. These changes are crucial for maintaining balance in different water conditions.

Conclusion The Van fish's kidneys undergo significant changes to help them survive the stresses of their annual migration. This adaptation is key to their resilience in Lake Van's unique environment.

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