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Author Spotlight: Understanding Riverine Nitrogen Impacts and Primary Productivity for Effective Nutrient Management
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Managing fisheries for maximum nutrient yield.

James P W Robinson1, Kirsty L Nash2,3, Julia L Blanchard2

  • 1Lancaster Environment Centre Lancaster University Lancaster UK.

Fish and Fisheries (Oxford, England)
|August 1, 2022
PubMed
Summary
This summary is machine-generated.

Managing fisheries for maximum nutrient yield (mNY) can enhance global nutrition. This approach prioritizes nutrient-rich species, potentially increasing vitamin D intake in deficient populations.

Keywords:
fisheries managementfood securitynutritionoverfishingseafoodsustainable fisheries

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Area of Science:

  • Marine Biology
  • Nutritional Science
  • Fisheries Management

Background:

  • Wild-caught fish are a vital source of nutrients, yet fisheries management has historically prioritized catch volume over nutritional content.
  • Integrating nutritional outcomes into fisheries management is crucial for enhancing global diet quality and food security.
  • Existing fisheries management frameworks can be adapted to incorporate nutritional goals.

Purpose of the Study:

  • To develop a conceptual framework for managing fisheries to achieve multispecies Maximum Nutrient Yield (mNY).
  • To empirically test the mNY approach using fisheries models and global catch data.
  • To explore the potential for enhancing nutrient yields from marine fisheries worldwide.

Main Methods:

  • Development of a conceptual foundation for multispecies Maximum Nutrient Yield (mNY).
  • Empirical testing using size-based models of North Sea and Baltic Sea fisheries.
  • Analysis of global catch data to assess the scope for nutrient yield enhancement.

Main Results:

  • mNY is influenced by the proportion of nutritious species in catches and their fishing vulnerability, revealing trade-offs between catch weight and specific nutrients.
  • Simulated nutrient yields indicated that vitamin D was underfished at maximum catch weight levels in Northern European fisheries.
  • Global catch data analysis suggests significant potential to increase nutrient yields through nutrient-sensitive fisheries management.

Conclusions:

  • The mNY framework provides a foundation for developing nutrient-based fisheries management strategies, especially in data-limited situations.
  • Nutrient-sensitive fisheries management, alongside access policies, can help address nutrient deficiencies in coastal populations.
  • Optimizing fisheries for mNY can significantly contribute to global food and nutrition security.