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Reframing Fish Passage Prioritization for Human Nutrition Outcomes.

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Summary

Fish passage barrier prioritization frameworks often overlook tropical needs and nutrition security. Integrating local needs and Sustainable Development Goal 2 (Zero Hunger) can improve fish passage investments and community food production.

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Area of Science:

  • Ecology and Conservation
  • Sustainable Development
  • Fisheries Management

Background:

  • Water control infrastructure fragments river habitats, impacting aquatic biodiversity and ecosystem services.
  • Inland fisheries are crucial food sources, especially in tropical regions, but face threats from habitat fragmentation.
  • Fish passage technologies and prioritization frameworks aim to mitigate fragmentation but may have limitations.

Purpose of the Study:

  • To critically evaluate global fish passage barrier prioritization frameworks.
  • To assess their suitability for guiding investments in tropical contexts.
  • To identify criteria relevant to nutrition security outcomes (SDG 2: Zero Hunger).

Main Methods:

  • Systematic review and critical evaluation of 93 fish passage barrier prioritization frameworks.
  • Analysis of framework applicability to tropical contexts and nutrition security goals.
  • Assessment of geographical and thematic biases in existing frameworks.

Main Results:

  • Existing frameworks are ill-equipped to support broader human development goals, particularly nutrition security in tropical countries.
  • Tropical contexts are underrepresented in prioritization frameworks despite significant investment.
  • Temperate and conservation-focused frameworks, predominantly from North America, dominate the field.

Conclusions:

  • Current fish passage barrier prioritization frameworks exhibit inherent biases and limitations.
  • There is a need to integrate local needs and nutrition security (SDG 2) into framework development.
  • Enhanced collaboration with local partners is crucial for effective fish passage investments supporting food production and community nutrition.