Electrofishing: Saviour of the sea or fracking of the oceans?
The Netherlands is testing a new technique to fish - using electric currents. Electrofishing is controversial and is banned by the EU, but can be used on an experimental basis.
Critics argue it is cruel because it breaks the backs of some larger cod. But advocates say it is less damaging for the environment than traditional beam trawling.
James Clayton reports for BBC Newsnight.