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Related Experiment Videos

Fueling global fishing fleets.

Peter H Tyedmers1, Reg Watson, Daniel Pauly

  • 1School for Resource and Environmental Studies, Dalhousie University, Halifax, NS, Canada. peter.tyedmers@dal.ca

Ambio
|March 9, 2006
PubMed
Summary
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Global fisheries consume nearly 50 billion liters of fuel annually, accounting for 1.2% of global oil use. This significant fossil fuel input results in substantial carbon dioxide emissions and an energy imbalance compared to the catch.

Area of Science:

  • Marine Biology
  • Fisheries Science
  • Environmental Science

Background:

  • Fossil fuels became the primary energy source for global fisheries in the 20th century.
  • Previous studies quantified fuel inputs for individual fisheries, but not globally.
  • Understanding global fuel consumption is crucial for assessing environmental impact.

Purpose of the Study:

  • To quantify the global scale of fuel consumed by fisheries.
  • To map the spatial distribution of fuel consumption in fisheries.
  • To assess the environmental and energetic implications of fisheries fuel use.

Main Methods:

  • Integrated data from over 250 global fisheries.
  • Utilized spatially resolved catch statistics for the year 2000.

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  • Calculated fuel consumption rates and CO2 emissions.

    • Main Results:

    • Global fisheries burned nearly 50 billion liters of fuel to land over 80 million tons of catch.
    • Average fuel consumption rate was 620 liters per ton of fish.
    • Fisheries account for approximately 1.2% of global oil consumption and emit over 130 million tons of CO2 annually.

    Conclusions:

    • Fisheries represent a significant global consumer of fossil fuels and a source of greenhouse gas emissions.
    • The energy input from fuel significantly exceeds the energy content of the landed catch.
    • This highlights the need for improved energy efficiency and sustainable practices in global fisheries.