Climate Change Impacts on Aquatic Food Systems Studied

Strategic Insights -

Researchers at Michigan State University have found that climate change significantly affects aquatic food systems, particularly fisheries, which play a crucial role in food security and nutrition. The study highlights the complexities of governing fisheries for nutritional objectives due to overlapping processes influenced by fishing sustainability, climate change, trade dynamics, and consumer preferences. An analytical approach was developed to link data on aquatic foods production, nutrition, distribution, and climate impacts to evaluate the nutrition implications of fishery management and post-harvest allocation interventions.

Key Takeaways:

  • The study reveals that climate change affects aquatic food systems, particularly fisheries, which contribute to food security and nutrition.
  • Researchers developed an analytical approach to link data on aquatic foods production, nutrition, distribution, and climate impacts.
  • The approach was applied to five case study countries: Peru, Chile, Indonesia, Sierra Leone, and Malawi.
  • The results indicate that climate change effects vary across countries, with potential for substantially increased nutrition yield in Chile and Peru under adaptive management.
  • Post-harvest allocation policies related to foreign fishing, exports, fishing sector, and subnational trade also impact nutrient availability.
  • The study suggests that fisheries can be managed as part of national food and nutrient supplies, in light of climate change risks.
  • The research provides a step toward operationalizing calls to manage fisheries for nutrition objectives under climate change.
  • The study highlights the importance of accounting for multiple interacting influences when anticipating the effect of governance interventions.

Statistics:

  • Five case study countries were evaluated in the study: Peru, Chile, Indonesia, Sierra Leone, and Malawi.
  • The study found substantial differences in climate change effects across countries, with potential for increased nutrition yield in Chile and Peru under adaptive management.
  • The results indicate that exports weigh heavily on nutrient availability in Sierra Leone.
  • The study highlights the importance of considering multiple interacting influences, including fishing sustainability, climate change, trade dynamics, and consumer preferences.

Sources:

  • New study results on climate change have been published in Environmental Research: Food Systems (2025, 2(3):035003).
  • Researcher Abigail Bennett, Department of Fisheries and Wildlife, Michigan State University.
  • National Science Foundation (funding source).
  • Environmental Research: Food Systems (publisher).
  • IOP Publishing (publisher of Environmental Research: Food Systems).
  • Julia G Mason, Willow Battista, Christopher M Free, Jessica A Gephart, Kristin M Kleisner, Emma D Rice, Kelly F Robinson, John Virdin (additional authors).