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The Dutch beam trawl sector has embarked on an overhaul of its fishing gear to halve fuel costs by adopting innovative fishing methods to replace the traditional and often criticised beam trawl gear. Fuel cost now accounts for 30-50 percent of the beam trawl costs.

The innovative fishing methods, such as 'pulse-trawling' and variations of the aerodynamic beam trawl concept like Sum Wing, Hydrorig and Ecocatcher gear, are being tried to reduce fuel cost by 50%. The pulse-trawling gear emits a short electrical burst that draws bottom-dwellers from the sea bed instead of scraping it clean as with traditional beam trawlers. The gear was first installed in the TX 68 boat and has been shown to reduce the catch of undersized sole and benthic invertebrates, as well as fuel costs.

The skippers of the vessels are now looking to fit a combination of the aerodynamic beam and pulse trawl to maximise energy savings. According to the skippers, pulse fishing can create both fuel and carbon emission savings of around 50 percent. Discards are also reduced by 50 percent, and the disturbance of the seabed declines 30 percent.

Installation of the pulse trawl equipment, including winches and software, currently costs around US$ 500 000; considerably more than the traditional beam trawls cost
around US$150 000. However, the industry was confident that the cost of the pulse technology would be reduced to around US$ 449 000 if more vessels place orders. The gear could pay for itself very quickly, within two years according to industry sources.

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